2009•Weiliang yuansu yu jiankang yanjiuRequires access

Determination of Trace Selenium in Coal by Microwave Digestion and flow injection—atomic absorption spectrometr

Yan Chen

Abstract

A method for the determination of trace Se in coal by microwave digestion and flow injection-atomic absorption spectrometric has been reported.The digestion system of HNO3+H2O2+HF was evaluated.The experimental conditions of microwave digestion,temperature of atomizer and flow of carrier gas were investigated.Testing result s showed that the detection limit was 1.05 ng/ml and the relative standard deviation was less than 5% and the recovery was 94.1%～98.4%.This method was simple and rapid.

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Key concepts: Microwave digestion, Selenium, Atomic absorption spectroscopy, Microwave, Detection limit, Chemistry, Digestion (alchemy), Coal