Analysis of oxyhalides in water by ion chromatography ionspray mass spectrometry

被引:34
作者
Charles, L [1 ]
Pépin, D
机构
[1] Fac Med, Inst Louise Blanquet, F-63000 Clermont Ferrand, France
[2] Fac Pharm Clermont Ferrand, Inst Louise Blanquet, F-63000 Clermont Ferrand, France
[3] Fac Pharm Clermont Ferrand, Chaire Hydrol & Hyg, F-63000 Clermont Ferrand, France
[4] Fac Med, Chaire Hydrol & Hyg, F-63000 Clermont Ferrand, France
关键词
water analysis; oxyhalides; inorganic anions; chlorite; chlorate; bromate; iodate;
D O I
10.1016/S0021-9673(97)01244-2
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A sensitive method for analyzing chlorite, chlorate, bromate and iodate in water by ion chromatography (IC) coupled with ionspray tandem mass spectrometry (IS-MS-MS) has been developed. Prior to analysis, samples were subjected to off-line sample clean-up with Ba, Ag and H-form resins to remove sulfate, chloride and hydrogencarbonate, respectively. Oxyhalides in the purified samples were concentrated and separated cn a short, high-performance anion-exchange column. An eluent consisting of ammonium nitrate in methanol-water (9:1, v/v) was found to be suitable for separating the analytes, while providing enhanced detector sensitivity. The coupling of IC with IS-MS-MS allows for the identification of the four oxyhalides mentioned above in a single run with very high specificity and sensitivity. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:105 / 111
页数:7
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