MICRO SEMIAUTOMATED ANALYSIS OF SURFACE AND WASTEWATERS FOR CHEMICAL OXYGEN DEMAND

被引：334

作者：

JIRKA, AM ^{[1
]}

CARTER, MJ ^{[1
]}

机构：

[1] ENVIRONM PROTECTION AGCY,CENT REG LAB,CHICAGO,IL 60609

来源：

ANALYTICAL CHEMISTRY | 1975年 / 47卷 / 08期

关键词：

D O I：

10.1021/ac60358a004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A micro sample digestion technique for the determination of chemical oxygen demand (COD) is described. An automated spectrophotometric measurement of the appearance of chromium(III) after sample digestion completes the method. Adequate sensitivity of 600 nm is achieved by using a 50 mm flowcell to measure COD values in the range of 3-900 mg/l. The semi-automated method is compared to the standard method with respect to precision, accuracy, ease of analysis, and comparability of data.

引用

页码：1397 / 1402

页数：6

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