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Simultaneous Determination of Low Molecular Weight Organic Acids in Soil Solution by Ion Chromatography
Author(s) -
Elkhatib E. A.
Publication year - 1990
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19901530311
Subject(s) - chemistry , formic acid , ion chromatography , chromatography , citric acid , succinic acid , ion exchange , ion , acetic acid , ion exchange resin , inorganic chemistry , organic chemistry
Abstract A simple and precise ion chromatographic (IC) method for determination of citric, malonic, succinic, formic, acetic and propionic acids in soil solution was developed. It requires a prior cleanup to the soil solution samples by anion exchange resin (AG1‐X8) and determination of organic acids using a Dionex Model 2010i IC. Separation of organic acids by IC permitted their quantitation by conductivity measurements, following suppression of background conductivity by a fiber suppressor. A high degree of precision was achieved in the quantitation of organic acids studied. With the IC method, citric, malonic, succinic, formic, acetic and propionic acids can be determined simultaneously in 16 min. A single operator can analyze about 30 samples in a single working day.