Spectrophotometric determination of micro amount of water in organic solvents

被引：0

作者：

Liu, XJ ^{[1
]}

Li, N ^{[1
]}

Zhao, FL ^{[1
]}

Li, K ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2002年 / 30卷 / 05期

关键词：

water; chloranilic acid; charge transfer reaction; spectrophotometric method;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The reaction between chloranilic acid and water in organic solvents have been studied. The reaction product has maximum absorption at 530 nm, The linear range is 0 similar to5.0% (V/V) or 0 similar to8.0 % (V/V) for the determination of water in methanol, ethanol, n-propyl alcohol, 2-propanol, n-butyl alcohol, heptanol, n-hexanol. Correlation coefficients are 0.998 similar to 0.999. The assay results for ethanol master sample are satisfactory. The recovery of water in methanol is 98 % similar to 103 %. This is a simple, sensitive and reproducible method for determining water in alcohol.

引用

页码：583 / 585

页数：3

共 5 条

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[3] Spectrophotometric determination of amlodipine besylate by charge-transfer complex formation with p-chloranilic acid
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[J]. ANALYTICAL SCIENCES, 2000, 16 (12) : 1353 - 1356
[4] WANG WT, 1982, ANAL TRACE WATER
[5] Zhou WB, 2000, CHINESE J ANAL CHEM, V28, P783

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