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Analysis of Anions in Alkaline Solutions by Ion Chromatography After Solid-Phase Extraction

Analysis of Anions in Alkaline Solutions by Ion Chromatography After Solid-Phase Extraction

Hui Cao, Jian Bo Xiao

Ann Chim. Jan-Feb 2007;97(1-2):49-58.

PMID: 17822263

Abstract:

An Ion Chromatographic (IC) method for the determination of six organic acids and three inorganic anions in alkaline solutions was reported. Formic, acetic, propionic, oxalic, succinic, glutaric acid, F-, Cl-, and SO4(2-) were separated and determined in 33 min. The analytes were removed from Bayer liquor by using an ion-exchange resin column. The chromatographic separation was achieved with only one IonPac AS11-HC column thermostated at 30 degrees C. Organic acids and inorganic anions were detected with a suppressed conductance detector. The precision results' showed that the repeatability and reproducibility were < 2.94 and < 1.37%, respectively. The accuracy of the method was assessed by the recoveries ranging from 86.3 to 105.6%. Under optimum conditions the detection limits ranged from 0.008 to 0.053 mg/l.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AS23106	Glutarate Standard for IC			Price

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