Determination of arsenic in glycerine by flow injection, hydride generation and inductively-coupled plasma/atomic emission spectrometry
Analytica Chimica Acta(1986)
摘要
The determination of low concentrations of arsenic in glycerine is investigated with flow injection for the introduction of analyte and tetrahydroborate reagent for arsine generation, separation in a vapor-liquid flow cell, and inductively-coupled plasma/atomic emission spectrometry (i.c.p./a.e.s.). Peak areas are used to quantify arsenic in the concentration range 0.12–3.0 μg ml−1. Peak areas for prepared standards exhibited average deviations of about 1.4% for this concentration range. The slope and intercept for a least- squares fit of area (nanocoulombs) vs. concentration (μg ml−1) were 10.9 ± 0.17 and 0.46 ± 0.3, respectively.
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关键词
inductive coupled plasma,arsenic
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