Trace level determination of perchlorate in water matrices and human urine using ESI-FAIMS-MS

被引:50
作者
Ells, B
Barnett, DA
Purves, RW
Guevremont, R [1 ]
机构
[1] Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
[2] PE Sciex, Concord, ON L4K 4V8, Canada
来源
JOURNAL OF ENVIRONMENTAL MONITORING | 2000年 / 2卷 / 05期
关键词
D O I
10.1039/b005601o
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
High-field asymmetric waveform ion mobility spectrometry (FAIMS) separates perchlorate from interfering isobaric ions of bisulfate and dihydrogenphosphate in the gas-phase. The use of a new FAIMS prototype and waveform generator, along with the use of a mixed carrier gas, in this electrospray ionisation (ESI)-FAIMS-mass spectrometry (MS) study gave a detection limit for perchlorate in a relatively "clean" matrix of tap water of 0.050 ppb. Flow injection analysis (FIA) of dilutions of fortified waste water, a fortified river water certified reference material (CRM; SLRS-4, National Research Council of Canada), and a fortified human urine Standard Reference Material (SRM; 2381, National Institute of Standards and Technology) gave detection limits of 0.37 ppb, 0.50 ppb, and 4.8 ppb, respectively, in the undiluted matrices.
引用
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页码:393 / 397
页数:5
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