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Atomization of tin in saline water media in graphite furnace atomic absorption spectrometry with a tungsten-coated tube using palladium as a chemical modifier

✍ Scribed by Etsuro Iwamoto; Hiromichi Shimazu; Kayoko Yokota; Takahiro Kumamaru

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 415 KB
Volume: 274
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(93)80470-6

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✦ Synopsis

The direct atonuzatlon of tm m sahne water media m graphite furnace atormc absorption spectrometry with a tungsten-coated tube was investigated The combmed use of a tungsten-coated non-pyrolytic graphite tube and palladium as a chenucal modlfier ehnunated sahmty m doubly diluted sea water without a senous loss of tm at an ashmg temperature of 1700°C Sulphate interference was also suppressed When using an mjectlon volume of 20 ~1 the sensltwlty was 0 0566 f 0 0043 peak-area absorbance ng-', and 0 0805 f 0 0078 wlthout sodmm cblorlde and sulphate The 30 detection hnut was 0 08 ng

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