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Comparison of Ion Chromatographic Methods Based on Conductivity Detection, Post-Column-Reaction and On-Line-Coupling IC-ICP-MS for the Determination of Bromate

Comparison of Ion Chromatographic Methods Based on Conductivity Detection, Post-Column-Reaction and On-Line-Coupling IC-ICP-MS for the Determination of Bromate

G Schminke, A Seubert

Fresenius J Anal Chem. 2000 Feb;366(4):387-91.

PMID: 11220325

Abstract:

An established method for the determination of the disinfection by-product bromate is ion chromatography (IC). This paper presents a comparison of three IC methods based on either conductivity detection (IC-CD), a post-column-reaction (IC-PCR-VIS) or the on-line-coupling with inductively coupled plasma mass spectrometry (IC-ICP-MS). Main characteristics of the methods such as method detection limits (MDL), time of analysis and sample pretreatment are compared and applicability for routine analysis is critically discussed. The most sensitive and rugged method is IC-ICP-MS, followed by IC-PCR-VIS. The photometric detection is subject to a minor interference in real world samples, presumably caused by carbonate. The lowest sensitivity is shown by the IC-CD method as slowest method compared, which, in addition, requires a sample pretreatment. The highest amount of information is delivered by IC-PCR-VIS, which allows the simultaneous determination of the seven standard anions and bromate.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AS23129	Bromate Standard for IC			Price

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