SPECTROPHOTOMETRIC APPROACHES TO THE DETERMINATION OF WATER IN ACETONE BY FLOW-INJECTION ANALYSIS

被引：4

作者：

GUZMAN, M ^{[1
]}

PAVON, JLP ^{[1
]}

GONZALO, ER ^{[1
]}

HATFIELD, C ^{[1
]}

RUZICKA, J ^{[1
]}

CHRISTIAN, GD ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM,BLDG 10,SEATTLE,WA 98195

来源：

ANALYST | 1991年 / 116卷 / 10期

关键词：

DETERMINATION OF WATER IN ACETONE; POTASSIUM DICHROMATE; FLOW INJECTION; SPECTROPHOTOMETRY;

D O I：

10.1039/an9911601043

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In the search for a simple, rapid and automated spectrophotometric method for quantitative determination of water in acetone, five previously reported batch techniques were applied to flow injection analysis (FIA). The selected reagents applied to the flow injection mode included lead tetraacetate Chromeazurol B, dithizone, cobalt dichloride, and potassium dichromate. Although the method using potassium dichromate as a reagent provided, by far, the best results for the range from 0.05 to 5.0% v/v water-acetone, in this report, all five experiments are described. Four of the methods are only mentioned briefly to explain their major drawbacks and obstacles when applied to FIA, the technique using potassium dichromate chemistry is described in detail.

引用

页码：1043 / 1049

页数：7

共 12 条

[1] A NEW, UNCOMPLICATED PROCEDURE FOR THE DETERMINATION OF SMALL CONCENTRATIONS OF WATER IN ORGANIC-SOLVENTS [J].