Atomic Absorption Spectrometric and Spectrophotometric Trace Analysis of Indium in Environmental Samples
作者:
S.A. Abbasi,
期刊:
Analytical Letters
(Taylor Available online 1988)
卷期:
Volume 21,
issue 9
页码: 1705-1721
ISSN:0003-2719
年代: 1988
DOI:10.1080/00032718808066522
出版商: Taylor & Francis Group
关键词: AAS;Environment;Extraction;Indium;Spectrophotometry
数据来源: Taylor
摘要:
Indium (III) was selectively extracted at pH 5.2–5.9 with N-p-methoxyphenyl-2-furylacrylohydroxamic acid (MFHA) into chloroform. BPAR [5-bromo-4(2-pyridylazo) resorcinal] was added to the extract to form an intensely red coloured ternary complex measurable spectrophotometrically at 515 nm (ϵ = 5.81 × 1041 mol−1cm−1). The extraction system enabled enrichment of indium and determination of the metal down to 10−4ppm (0.1 ppb) levels. For atomic absorption spectrometric determination, indium was extracted with MFHA into methyl isobuyl ketone and measured at 303.9 nm resonance line in the air-acetylene flame. Both the methods were
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