Gas-chromatographic determination of nitrophenols after derivatisation with diazomethane
A method is described to determine nitrophenols and two herbicides (Bromoxynil, Ioxynil) in precipitation, with GC-PND and GC-MS. First, the micropollutants were extracted by a mixture of pentane and ether (1/1), concentrated by rotary evaporator, then methylated by diazomethane. The extraction and...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
1992
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| In: |
Fresenius' journal of analytical chemistry
Year: 1992, Jahrgang: 343, Heft: 3, Pages: 304-307 |
| ISSN: | 1432-1130 |
| DOI: | 10.1007/BF00322379 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/BF00322379 Verlag, lizenzpflichtig, Volltext: http://link.springer.com/10.1007/BF00322379 
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| Verfasserangaben: | K. Nick, H.F. Schöler |
MARC
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| 520 | |a A method is described to determine nitrophenols and two herbicides (Bromoxynil, Ioxynil) in precipitation, with GC-PND and GC-MS. First, the micropollutants were extracted by a mixture of pentane and ether (1/1), concentrated by rotary evaporator, then methylated by diazomethane. The extraction and reaction yields were measured. The resulting recoveries were between 75 and 100% for the mononitrophenols and about 70% for methylnitrophenols. The detection limits were about 0.25 ~tg/1for most substances. | ||
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