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Determination of manganese by electrothermal atomisation atomic absorption spectrometry following coprecipitation with yttrium hydroxide

✍ Scribed by Kikuo Takeda; Chikashi Akamatsu; Yoshihiro Ishikawa

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 442 KB
Volume: 298
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(94)00296-7

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✦ Synopsis

Coprecipitation

is applied to the determination of trace amounts of manganese by electrothermal atomisation atomic absorption spectrometry. Manganese (0.05-l pg) is coprecipitated quantitatively from the sample solution (50-500 ml)

with yttrium hydroxide at pH 9.0-11.3. The atomic absorbance of manganese is increased about 3 times by using an yttrium-impregnated graphite cuvette. The calibration curve is linear from 0.002 to 0.04 pg rnlll of manganese. Twenty-three different ions investigated did not produce serious interferences. The proposed method was successfully applied to the determination of trace amounts of manganese in zinc metal.

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