Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis
Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our rec...
Ausführliche Beschreibung
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| Autor*in: |
Hondo, Toshinobu [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Outcomes of refractive lens exchange to treat high myopia in special needs children and adolescents - Faron, Nicholas ELSEVIER, 2022, [S.l.] |
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| Übergeordnetes Werk: |
volume:463 ; year:2021 ; pages:0 |
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| DOI / URN: |
10.1016/j.ijms.2021.116555 |
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| 520 | |a Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. | ||
| 520 | |a Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. | ||
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| 700 | 1 | |a Toyoda, Michisato |4 oth | |
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10.1016/j.ijms.2021.116555 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001333.pica (DE-627)ELV053469801 (ELSEVIER)S1387-3806(21)00035-X DE-627 ger DE-627 rakwb eng 610 VZ 44.95 bkl Hondo, Toshinobu verfasserin aut Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Harsh mass spectrometry Elsevier On-site analysis Elsevier Multi-turn time-of-flight mass spectrometer Elsevier Nakayama, Noriko oth Toyoda, Michisato oth Enthalten in Elsevier Science Faron, Nicholas ELSEVIER Outcomes of refractive lens exchange to treat high myopia in special needs children and adolescents 2022 [S.l.] (DE-627)ELV008599289 volume:463 year:2021 pages:0 https://doi.org/10.1016/j.ijms.2021.116555 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.95 Augenheilkunde VZ AR 463 2021 0 |
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10.1016/j.ijms.2021.116555 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001333.pica (DE-627)ELV053469801 (ELSEVIER)S1387-3806(21)00035-X DE-627 ger DE-627 rakwb eng 610 VZ 44.95 bkl Hondo, Toshinobu verfasserin aut Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Harsh mass spectrometry Elsevier On-site analysis Elsevier Multi-turn time-of-flight mass spectrometer Elsevier Nakayama, Noriko oth Toyoda, Michisato oth Enthalten in Elsevier Science Faron, Nicholas ELSEVIER Outcomes of refractive lens exchange to treat high myopia in special needs children and adolescents 2022 [S.l.] (DE-627)ELV008599289 volume:463 year:2021 pages:0 https://doi.org/10.1016/j.ijms.2021.116555 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.95 Augenheilkunde VZ AR 463 2021 0 |
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10.1016/j.ijms.2021.116555 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001333.pica (DE-627)ELV053469801 (ELSEVIER)S1387-3806(21)00035-X DE-627 ger DE-627 rakwb eng 610 VZ 44.95 bkl Hondo, Toshinobu verfasserin aut Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Harsh mass spectrometry Elsevier On-site analysis Elsevier Multi-turn time-of-flight mass spectrometer Elsevier Nakayama, Noriko oth Toyoda, Michisato oth Enthalten in Elsevier Science Faron, Nicholas ELSEVIER Outcomes of refractive lens exchange to treat high myopia in special needs children and adolescents 2022 [S.l.] (DE-627)ELV008599289 volume:463 year:2021 pages:0 https://doi.org/10.1016/j.ijms.2021.116555 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.95 Augenheilkunde VZ AR 463 2021 0 |
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10.1016/j.ijms.2021.116555 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001333.pica (DE-627)ELV053469801 (ELSEVIER)S1387-3806(21)00035-X DE-627 ger DE-627 rakwb eng 610 VZ 44.95 bkl Hondo, Toshinobu verfasserin aut Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Harsh mass spectrometry Elsevier On-site analysis Elsevier Multi-turn time-of-flight mass spectrometer Elsevier Nakayama, Noriko oth Toyoda, Michisato oth Enthalten in Elsevier Science Faron, Nicholas ELSEVIER Outcomes of refractive lens exchange to treat high myopia in special needs children and adolescents 2022 [S.l.] (DE-627)ELV008599289 volume:463 year:2021 pages:0 https://doi.org/10.1016/j.ijms.2021.116555 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.95 Augenheilkunde VZ AR 463 2021 0 |
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10.1016/j.ijms.2021.116555 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001333.pica (DE-627)ELV053469801 (ELSEVIER)S1387-3806(21)00035-X DE-627 ger DE-627 rakwb eng 610 VZ 44.95 bkl Hondo, Toshinobu verfasserin aut Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. Harsh mass spectrometry Elsevier On-site analysis Elsevier Multi-turn time-of-flight mass spectrometer Elsevier Nakayama, Noriko oth Toyoda, Michisato oth Enthalten in Elsevier Science Faron, Nicholas ELSEVIER Outcomes of refractive lens exchange to treat high myopia in special needs children and adolescents 2022 [S.l.] (DE-627)ELV008599289 volume:463 year:2021 pages:0 https://doi.org/10.1016/j.ijms.2021.116555 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.95 Augenheilkunde VZ AR 463 2021 0 |
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The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. 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Gas chromatography/miniaturized time-of-flight mass spectrometry technique for high-throughput quantitative on-site field analysis |
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Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. |
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Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. |
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Previously, we reviewed several mass spectrometers designed for field analysis, also known as harsh mass spectrometers. The majority of these instruments are focused on the instrument footprint size and weight, which compromise the performance, for instance, in terms of mass-resolving power. Our recent work employed a shoebox-size (mini-tower personal computer size) high-resolving-power mass analyzer equipped with a robust gas chromatograph in the firm field, which successfully monitored the soil-gas compositional changes on-the-fly in real time. We evaluated the system performance for mass accuracy, self-validation testing for analyte peaks, and quantitative precision through long-term continuous data acquisitions of 1429 replicates of model gas samples for 48 h. The observed mass drift was 4 mDa, which was compensated within 0.45 mDa using a novel algorithm without the addition of mass reference materials. In addition, the optimized algorithm for high-resolution ion chromatogram extraction for this application was evaluated. Results indicated that the proposed method limited the chromatographic peak area variance. The coefficient of variance (CV) for determining CO2 amounts for the 1429 sample runs was 8.6%. Furthermore, the CO2 average retention time was 48.06 ± 0.29 s (CV = 0.61%), average number of theoretical plates was 3500, and asymmetry factor was 1.09. |
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