DETERMINATION OF SULFATE AND PHOSPHATE BY FLOW-INJECTION ANALYSIS USING A BARIUM CHLORANILATE PACKED-COLUMN

被引：7

作者：

KAMAYA, M

NAGASHIMA, K

ISHII, E

机构：

[1] Department of Applied Chemistry, Kogakuin University, Tokyo, 160, 24-2, Nishi-Shinjuku, 1-Chome, Shinjuku-Ku

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 347卷 / 10-11期

关键词：

D O I：

10.1007/BF00635466

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flow-injection analysis Of sulphate using a reaction column packed with barium chloranilate (BaCh) is described. The chloranilate ion released by the reaction is monitored at the isosbestic point (310 nm) of chloranilate. An aqueous solution of 2-propanol (60%) is used as the carrier solution at a flow-rate of 1 ml . min-1. The linear dynamic range of the detection system is approximately 2.5 x 10(-6) approximately 1.0 X 10(-3) mol/l per 10 mul sample injection. The time required for a determination is only 20 s per sample injection. The method has also been applied to the amplified determination of phosphate by reaction with molybdate resulting from the decomposition of molybdophosphate (H3PO4 . MoO3) extracted.

引用

页码：409 / 412

页数：4

共 17 条

[1]

Agterdenbos J., 1964, TALANTA, V11, P875, DOI [DOI 10.1016/0039-9140(64)80115-6, 10.1016/0039-9140(64)80115-6]

[2]

BERGAN FJ, 1967, PB254387

[3] ULTRAVIOLET SPECTROPHOTOMETRIC DETERMINATION OF SULFATE, CHLORIDE, AND FLUORIDE WITH CHLORANILIC ACID [J].