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Three‐Minute Analysis of Chloride, Nitrate, and Sulfate by Single Column Anion Chromatography
Author(s) -
Barak Phillip,
Chen Yona
Publication year - 1987
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1987.03615995005100010053x
Subject(s) - chloride , nitrate , sulfate , ion chromatography , column chromatography , chemistry , phthalic acid , chromatography , coefficient of variation , analytical chemistry (journal) , organic chemistry
Abstract Accepted techniques of single column ion chromatography of inorganic anions were extended to separation of chloride, nitrate, and sulfate using 15 m M phthalic acid as an eluent, permitting reduction of column length to 30 mm and thereby reducing analysis time to three min. Using a 50 µL sample loop, detection limits were 0.05 mmol c L −1 and coefficient of variation values ranged from 0.8 to 1.7% using peak height measurements and 0.8 to 8.1% using peak area measurements. This configuration is appropriate for routine analysis of soil water extracts and ground water.