Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples
A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate a...
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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 |
|---|---|
| Übergeordnetes Werk: |
in: Journal of Chromatography A - Amsterdam : Elsevier, 629(1993), 1, Seite 67-74 |
| Übergeordnetes Werk: |
volume:629 ; year:1993 ; number:1 ; pages:67-74 |
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NLEJ174309961 |
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| 520 | |a A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. | ||
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(DE-627)NLEJ174309961 (DE-599)GBVNLZ174309961 DE-627 ger DE-627 rakwb eng Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Durhan, E. oth Lukasewycz, M. oth Baker, S. oth in Journal of Chromatography A Amsterdam : Elsevier 629(1993), 1, Seite 67-74 (DE-627)NLEJ17403282X (DE-600)1491247-8 0021-9673 nnns volume:629 year:1993 number:1 pages:67-74 http://linkinghub.elsevier.com/retrieve/pii/0021-9673(93)80355-C GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 629 1993 1 67-74 |
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(DE-627)NLEJ174309961 (DE-599)GBVNLZ174309961 DE-627 ger DE-627 rakwb eng Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Durhan, E. oth Lukasewycz, M. oth Baker, S. oth in Journal of Chromatography A Amsterdam : Elsevier 629(1993), 1, Seite 67-74 (DE-627)NLEJ17403282X (DE-600)1491247-8 0021-9673 nnns volume:629 year:1993 number:1 pages:67-74 http://linkinghub.elsevier.com/retrieve/pii/0021-9673(93)80355-C GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 629 1993 1 67-74 |
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(DE-627)NLEJ174309961 (DE-599)GBVNLZ174309961 DE-627 ger DE-627 rakwb eng Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Durhan, E. oth Lukasewycz, M. oth Baker, S. oth in Journal of Chromatography A Amsterdam : Elsevier 629(1993), 1, Seite 67-74 (DE-627)NLEJ17403282X (DE-600)1491247-8 0021-9673 nnns volume:629 year:1993 number:1 pages:67-74 http://linkinghub.elsevier.com/retrieve/pii/0021-9673(93)80355-C GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 629 1993 1 67-74 |
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(DE-627)NLEJ174309961 (DE-599)GBVNLZ174309961 DE-627 ger DE-627 rakwb eng Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Durhan, E. oth Lukasewycz, M. oth Baker, S. oth in Journal of Chromatography A Amsterdam : Elsevier 629(1993), 1, Seite 67-74 (DE-627)NLEJ17403282X (DE-600)1491247-8 0021-9673 nnns volume:629 year:1993 number:1 pages:67-74 http://linkinghub.elsevier.com/retrieve/pii/0021-9673(93)80355-C GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 629 1993 1 67-74 |
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(DE-627)NLEJ174309961 (DE-599)GBVNLZ174309961 DE-627 ger DE-627 rakwb eng Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Durhan, E. oth Lukasewycz, M. oth Baker, S. oth in Journal of Chromatography A Amsterdam : Elsevier 629(1993), 1, Seite 67-74 (DE-627)NLEJ17403282X (DE-600)1491247-8 0021-9673 nnns volume:629 year:1993 number:1 pages:67-74 http://linkinghub.elsevier.com/retrieve/pii/0021-9673(93)80355-C GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 629 1993 1 67-74 |
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alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log k"o"w organic compounds in aqueous environmental samples |
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Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples |
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A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. |
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A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. |
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A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ174309961</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210705210731.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070505s1993 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ174309961</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVNLZ174309961</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Alternatives to methanol-water elution of solid-phase extraction columns for the fractionation of high log K"o"w organic compounds in aqueous environmental samples</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1993</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">A toxicity-directed method for fractionating non-polar organic toxicants using solid-phase extraction (SPE) is described in phase II of EPA's ''Methods for aquatic toxicity identification evaluations''. This method has been used very successfully to extract and fractionate acutely and chronically toxic complex effluents and ambient waters. However, when fractioning samples that contain very hydrophobic (high log K"o"w) toxicants the methanol-water elution sequence requires modification for optimum results. An elution modification has been made to the phase II SPE fractionation method for use with aqueous samples which contain such compounds (e.g. sediment pore water). The modified elution and fractionation method has been found to be effective for the separation and isolation of a mixture of compounds with log K"o"w values ranging from 2.5 to 7 from aqueous solution and for toxicants from a sediment pore water sample.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Elsevier Journal Backfiles on ScienceDirect 1907 - 2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Durhan, E.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lukasewycz, M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Baker, S.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Journal of Chromatography A</subfield><subfield code="d">Amsterdam : Elsevier</subfield><subfield code="g">629(1993), 1, Seite 67-74</subfield><subfield code="w">(DE-627)NLEJ17403282X</subfield><subfield code="w">(DE-600)1491247-8</subfield><subfield code="x">0021-9673</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:629</subfield><subfield code="g">year:1993</subfield><subfield code="g">number:1</subfield><subfield code="g">pages:67-74</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://linkinghub.elsevier.com/retrieve/pii/0021-9673(93)80355-C</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_H</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SDJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">629</subfield><subfield code="j">1993</subfield><subfield code="e">1</subfield><subfield code="h">67-74</subfield></datafield></record></collection>
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