Determination of mercury species in natural waters at picogram level with on-line RP C18 preconcentration and HPLC-UV-PCO-CVAAS
A new technique has been developed for the determination of methyl-, ethyl-, methoxyethyl-, ethoxyethyl-, phenyl- and inorganic mercury in natural water samples. The mercury compounds have been complexed for the preconcentration on RP C18 columns by sodium pyrrolidinedithiocarbamate (SPDC), sodium d...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
1995
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| In: |
Fresenius' journal of analytical chemistry
Year: 1995, Jahrgang: 353, Heft: 1, Pages: 34-38 |
| ISSN: | 1432-1130 |
| DOI: | 10.1007/BF00322887 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/BF00322887
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| Verfasserangaben: | R. Falter, H.F. Schöler |
MARC
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| 245 | 1 | 0 | |a Determination of mercury species in natural waters at picogram level with on-line RP C18 preconcentration and HPLC-UV-PCO-CVAAS |c R. Falter, H.F. Schöler |
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| 520 | |a A new technique has been developed for the determination of methyl-, ethyl-, methoxyethyl-, ethoxyethyl-, phenyl- and inorganic mercury in natural water samples. The mercury compounds have been complexed for the preconcentration on RP C18 columns by sodium pyrrolidinedithiocarbamate (SPDC), sodium diethyldithiocarbamate (SDDC) and hexamethyleneammonium (HMA) — hexamethylenedithiocarbamate (HMDC), separated by HPLC and determined by UV-PCO-CVAAS (ultra violet, post column oxidation, cold vapour atomic absorption spectrometry). The standard deviations are in the range of 6.9 to 11.8%. The recoveries amount to 86%, 78%, 88%, 83%, 79% and 84% for methyl-, ethyl-, methoxyethyl-, ethoxyethyl-, phenyl- and inorganic mercury for the enrichment from 300 ml water samples. The detection limit for methyl mercury is 0.5 ppt. This new on-line preconcentration procedure has been tested with rain, drinking, surface and process water samples. | ||
| 650 | 4 | |a Diethyldithiocarbamate | |
| 650 | 4 | |a Inorganic Mercury | |
| 650 | 4 | |a Mercury Species | |
| 650 | 4 | |a Methyl Mercury | |
| 650 | 4 | |a Ultra Violet | |
| 700 | 1 | |a Schöler, Heinz Friedrich |d 1948- |e VerfasserIn |0 (DE-588)1050882393 |0 (DE-627)785258655 |0 (DE-576)405282273 |4 aut | |
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