Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs
This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approac...
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Gespeichert in:
| Autor*in: |
Sousa, Demétrio A. [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2014transfer abstract |
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7 |
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| Übergeordnetes Werk: |
Enthalten in: A Patient With Dyspnea and Right Leg Heaviness - Yano, Haruka ELSEVIER, 2022, Orlando, Fla |
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| Übergeordnetes Werk: |
volume:114 ; year:2014 ; pages:266-272 ; extent:7 |
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| DOI / URN: |
10.1016/j.microc.2014.01.012 |
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| 245 | 1 | 0 | |a Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs |
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| 520 | |a This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. | ||
| 520 | |a This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. | ||
| 700 | 1 | |a Gonçalves, Renato M. |4 oth | |
| 700 | 1 | |a Heleno, Fernanda F. |4 oth | |
| 700 | 1 | |a de Queiroz, Maria Eliana L.R. |4 oth | |
| 700 | 1 | |a de Marchi, Mary Rosa R. |4 oth | |
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10.1016/j.microc.2014.01.012 doi GBVA2014022000012.pica (DE-627)ELV034247939 (ELSEVIER)S0026-265X(14)00013-7 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.80 bkl Sousa, Demétrio A. verfasserin aut Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs 2014transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. Gonçalves, Renato M. oth Heleno, Fernanda F. oth de Queiroz, Maria Eliana L.R. oth de Marchi, Mary Rosa R. oth Enthalten in Academic Press Yano, Haruka ELSEVIER A Patient With Dyspnea and Right Leg Heaviness 2022 Orlando, Fla (DE-627)ELV009437061 volume:114 year:2014 pages:266-272 extent:7 https://doi.org/10.1016/j.microc.2014.01.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.80 Unfallmedizin Notfallmedizin VZ AR 114 2014 266-272 7 045F 540 |
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10.1016/j.microc.2014.01.012 doi GBVA2014022000012.pica (DE-627)ELV034247939 (ELSEVIER)S0026-265X(14)00013-7 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.80 bkl Sousa, Demétrio A. verfasserin aut Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs 2014transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. Gonçalves, Renato M. oth Heleno, Fernanda F. oth de Queiroz, Maria Eliana L.R. oth de Marchi, Mary Rosa R. oth Enthalten in Academic Press Yano, Haruka ELSEVIER A Patient With Dyspnea and Right Leg Heaviness 2022 Orlando, Fla (DE-627)ELV009437061 volume:114 year:2014 pages:266-272 extent:7 https://doi.org/10.1016/j.microc.2014.01.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.80 Unfallmedizin Notfallmedizin VZ AR 114 2014 266-272 7 045F 540 |
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10.1016/j.microc.2014.01.012 doi GBVA2014022000012.pica (DE-627)ELV034247939 (ELSEVIER)S0026-265X(14)00013-7 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.80 bkl Sousa, Demétrio A. verfasserin aut Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs 2014transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. Gonçalves, Renato M. oth Heleno, Fernanda F. oth de Queiroz, Maria Eliana L.R. oth de Marchi, Mary Rosa R. oth Enthalten in Academic Press Yano, Haruka ELSEVIER A Patient With Dyspnea and Right Leg Heaviness 2022 Orlando, Fla (DE-627)ELV009437061 volume:114 year:2014 pages:266-272 extent:7 https://doi.org/10.1016/j.microc.2014.01.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.80 Unfallmedizin Notfallmedizin VZ AR 114 2014 266-272 7 045F 540 |
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10.1016/j.microc.2014.01.012 doi GBVA2014022000012.pica (DE-627)ELV034247939 (ELSEVIER)S0026-265X(14)00013-7 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.80 bkl Sousa, Demétrio A. verfasserin aut Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs 2014transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. Gonçalves, Renato M. oth Heleno, Fernanda F. oth de Queiroz, Maria Eliana L.R. oth de Marchi, Mary Rosa R. oth Enthalten in Academic Press Yano, Haruka ELSEVIER A Patient With Dyspnea and Right Leg Heaviness 2022 Orlando, Fla (DE-627)ELV009437061 volume:114 year:2014 pages:266-272 extent:7 https://doi.org/10.1016/j.microc.2014.01.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.80 Unfallmedizin Notfallmedizin VZ AR 114 2014 266-272 7 045F 540 |
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10.1016/j.microc.2014.01.012 doi GBVA2014022000012.pica (DE-627)ELV034247939 (ELSEVIER)S0026-265X(14)00013-7 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.80 bkl Sousa, Demétrio A. verfasserin aut Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs 2014transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. Gonçalves, Renato M. oth Heleno, Fernanda F. oth de Queiroz, Maria Eliana L.R. oth de Marchi, Mary Rosa R. oth Enthalten in Academic Press Yano, Haruka ELSEVIER A Patient With Dyspnea and Right Leg Heaviness 2022 Orlando, Fla (DE-627)ELV009437061 volume:114 year:2014 pages:266-272 extent:7 https://doi.org/10.1016/j.microc.2014.01.012 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.80 Unfallmedizin Notfallmedizin VZ AR 114 2014 266-272 7 045F 540 |
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chemometric optimization of solid–liquid extraction with low-temperature partition (sle-ltp) for determination of persistent organic pollutants in caiman yacare eggs |
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Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs |
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This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. |
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This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. |
| abstract_unstemmed |
This paper presents the optimization of a method based on solid–liquid extraction followed by low-temperature partition (SLE-LTP) for the determination of persistent organic pollutants (organochlorinated pesticides and PCBs) in the eggs of the Pantanal caiman (Caiman yacare). The chemometric approach included a 24 factorial design and a triplicate central point. The extractor solvent volume (8–10mL), vortexing time (1–5min), centrifugation time (5–15min) and freezing time (4–12h) were the variables considered and were tested at three levels, including triplicate tests at the central point. The evaluated response was the average recovery for all the analytes. The data showed the extractor volume and the vortex time to be the main factors that affect recovery. The optimized method includes12mL of extractor solvent, 5min of vortexing time, 5min of centrifugation time and 12h of freezing time. Under these conditions the average recovery was 61% with a precision expressed as relative standard deviation (RSD) of 15% for sample with 22.5ngg−1 of sample. A GC-ECD was used for the determination of POPs. The experimental design was an important statistical tool for defining the experimental parameters in the use of this method for the extraction of organochlorine pesticides and PCBs. |
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Chemometric optimization of solid–liquid extraction with low-temperature partition (SLE-LTP) for determination of persistent organic pollutants in Caiman yacare eggs |
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