Successive Determination of Picogram Amounts of Phosphorus and Arsenic in Pure Water by Indirect Flameless Atomic Absorption (Mo) Spectroscopy
作者:
V. Rozenblum,
期刊:
Analytical Letters
(Taylor Available online 1975)
卷期:
Volume 8,
issue 8
页码: 549-557
ISSN:0003-2719
年代: 1975
DOI:10.1080/00032717508058239
出版商: Taylor & Francis Group
关键词: Trace (picogram) determination of P and As
数据来源: Taylor
摘要:
The method involves the conversion of the P and As into the yellow 12-molybdo-phosphate or - arsenate complex, respectively, extraction into butyl acetate (in the case of As - with the preliminary addition of ethanol), the decomposition of the heteropoly-compounds with aqueous NH3and the back extraction of the liberated Mo into aqueous solution, for flameless AA determination. 10 pg P and 25 pg As in 0.4 ml samples of ultrapure water were determined with percentage errors below ±30%.
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