A SIMPLE EXTRACTION-SPECTROPHOTOMETRIC METHOD FOR THE ESTIMATION OF DISSOLVED HUMIC SUBSTANCES IN WATER .1. PROCEDURES

被引：6

作者：

HANSCHMANN, G

机构：

[1] Forschungsstelle Für Chemische Toxikologie, Leipzig

来源：

ACTA HYDROCHIMICA ET HYDROBIOLOGICA | 1991年 / 19卷 / 03期

关键词：

D O I：

10.1002/aheh.19910190303

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Humic substances (HS) can be extracted from water into chloroform in one step by means of cetyl-pyridinium chloride and sodium chloride. The absorbance (at 450 nm) of the extract is proportional to the HS content. Two procedures are presented for HS concentrations of 2...20 mg/l and 20...200 mg/l water, respectively.

引用

页码：265 / 266

页数：2

共 5 条

[1]

Abbt-Braun G., Praktische Aspekte von Huminstoffen, DVGW‐Schriftenreihe Wasser Nr., 205-212, pp. 1-22, (1989)

[2]

Eberle S.H., Schweer K.H., Bestimmung von Huminsäure und Ligninsulfonsäure im Wasser durch Flüssig‐Flüssig‐Extraktion, Vom Wasser, 41, pp. 27-44, (1973)

[3]

Kraus C.A., The ion‐Pair concept: its evolution and some applications, J. Phys. Chem., 60, 2, pp. 129-141, (1956)

[4]

Peschel G., Wildt Th., UV‐Extinctions of aquatic humic acids: its dependence on the elemental composition, Fresenius Z Anal Chem, 325, pp. 691-692, (1986)

[5]

Sohr H., Wienhold K., Spurenanalyse von Huminstoffen im Trinkwasser, Anal. Chim. Acta, 121, pp. 309-314, (1980)

← 1 →