On-line monitoring of flowing samples using solid phase microextraction-gas chromatography
The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rap...
Ausführliche Beschreibung
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| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1993 |
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| Reproduktion: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
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| Übergeordnetes Werk: |
in: Analytica Chimica Acta - Amsterdam : Elsevier, 284(1993), 2, Seite 265-273 |
| Übergeordnetes Werk: |
volume:284 ; year:1993 ; number:2 ; pages:265-273 |
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| 520 | |a The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. | ||
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(DE-627)NLEJ173541550 (DE-599)GBVNLZ173541550 DE-627 ger DE-627 rakwb eng On-line monitoring of flowing samples using solid phase microextraction-gas chromatography 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Motlagh, S. oth Pawliszyn, J. oth in Analytica Chimica Acta Amsterdam : Elsevier 284(1993), 2, Seite 265-273 (DE-627)NLEJ173450067 (DE-600)1483436-4 0003-2670 nnns volume:284 year:1993 number:2 pages:265-273 http://linkinghub.elsevier.com/retrieve/pii/0003-2670(93)85310-G GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 284 1993 2 265-273 |
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(DE-627)NLEJ173541550 (DE-599)GBVNLZ173541550 DE-627 ger DE-627 rakwb eng On-line monitoring of flowing samples using solid phase microextraction-gas chromatography 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Motlagh, S. oth Pawliszyn, J. oth in Analytica Chimica Acta Amsterdam : Elsevier 284(1993), 2, Seite 265-273 (DE-627)NLEJ173450067 (DE-600)1483436-4 0003-2670 nnns volume:284 year:1993 number:2 pages:265-273 http://linkinghub.elsevier.com/retrieve/pii/0003-2670(93)85310-G GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 284 1993 2 265-273 |
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(DE-627)NLEJ173541550 (DE-599)GBVNLZ173541550 DE-627 ger DE-627 rakwb eng On-line monitoring of flowing samples using solid phase microextraction-gas chromatography 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Motlagh, S. oth Pawliszyn, J. oth in Analytica Chimica Acta Amsterdam : Elsevier 284(1993), 2, Seite 265-273 (DE-627)NLEJ173450067 (DE-600)1483436-4 0003-2670 nnns volume:284 year:1993 number:2 pages:265-273 http://linkinghub.elsevier.com/retrieve/pii/0003-2670(93)85310-G GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 284 1993 2 265-273 |
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(DE-627)NLEJ173541550 (DE-599)GBVNLZ173541550 DE-627 ger DE-627 rakwb eng On-line monitoring of flowing samples using solid phase microextraction-gas chromatography 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Motlagh, S. oth Pawliszyn, J. oth in Analytica Chimica Acta Amsterdam : Elsevier 284(1993), 2, Seite 265-273 (DE-627)NLEJ173450067 (DE-600)1483436-4 0003-2670 nnns volume:284 year:1993 number:2 pages:265-273 http://linkinghub.elsevier.com/retrieve/pii/0003-2670(93)85310-G GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 284 1993 2 265-273 |
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(DE-627)NLEJ173541550 (DE-599)GBVNLZ173541550 DE-627 ger DE-627 rakwb eng On-line monitoring of flowing samples using solid phase microextraction-gas chromatography 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Motlagh, S. oth Pawliszyn, J. oth in Analytica Chimica Acta Amsterdam : Elsevier 284(1993), 2, Seite 265-273 (DE-627)NLEJ173450067 (DE-600)1483436-4 0003-2670 nnns volume:284 year:1993 number:2 pages:265-273 http://linkinghub.elsevier.com/retrieve/pii/0003-2670(93)85310-G GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 284 1993 2 265-273 |
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On-line monitoring of flowing samples using solid phase microextraction-gas chromatography |
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The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. |
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The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. |
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The rapid sampling and concentration response of solid phase microextraction (SPME) facilitate the monitoring of organic analytes present in a flowing stream. It was determined that in addition to convection introduced by flow in the system, an efficient means of agitation is required to achieve rapid extractions. Three agitation techniques; magnetic mixing, intrusive mixing and sonication were tested. While magnetic stirring is inexpensive and easy to automate, it exhibited low mixing efficiency. Intrusive mixing allows efficient agitation but caused sample heating and is not easily amenable to on-line analysis. Sonication proved to be the most efficient and the most convenient means of agitation for sampling from flowing streams. For example, toluene, equilibrates in less then 1 min, which is very close to theoretical predictions assuming perfect agitation conditions. The on-line SPME-GC technique allows gas chromatography to be incorporated into a flow-injection analysis system. |
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