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A novel hydride generation system for the simultaneous determination of lead and cadmium using atomic fluorescence Spectrometry
Alternative TitleA Novel Hydride Generation System for the Simultaneous Determination of Lead and Cadmium Using Atomic Fluorescence Spectrometry
Zou AiMei; Yong Liu; Chen MingLi; Wang JianHua
2008
Source PublicationCHINESE JOURNAL OF ANALYTICAL CHEMISTRY
ISSN0253-3820
Volume36Issue:2Pages:162-166
AbstractA novel hydride generation system was developed for the simultaneous hydride generation of lead and cadmium, i.e., the system of K3Fe(CN)(6)-(NH4)(2)Ce(NO3)(6)-NaBH4-HCl, which no interfering effects from the hydride generation of the two species were identified. The mechanisms of the hydride generation process include the oxidation of Pb(II) by (NH4)(2)Ce(NO3)(6), meanwhile, the K3Fe(CN)(6) was used as a coordinating reagent to form a complex with Pb( W) which facilitates its ensuing hydride generation. Cadmium hydride generation follows the conventional process with (NH4)(2) Ce ( NO3)(6) serves as a sensitizer. A sequential injection-hydride generation-atomic fluorescence spectrometric procedure was developed for the simultaneous determination of lead and cadmium. When employing the following experimental parameters, i.e., 2% NaBH4-3% HCl -0. 6% K3Fe(CN)(6)-0.3% (NH4)(2)Ce(NO3)(6), a 500-mu L sampling volume at a flow rate of 125 mu L/s, the obtained linear ranges were 0.4-15 mu g/L (Pb) and 0.5-20 mu g/L (Cd) respectively, along with limits of detection of 0.09 mu g/L ( Pb)and 0.17 mu g/L (Cd). The RSDs of the procedure were derived as 0. 5 % (6. 0 mu g/L Pb, n = 9) and 1. 0 % (6. 0 mu g/L Cd, n = 9). The present procedure was applied for the determination of lead and cadmium in a certified reference material of water sample, GBW08608, a coastal sea water and a riverine water sample, with satisfactory spiking recoveries.
KeywordCHINESE MEDICINAL HERBS SOLID-PHASE EXTRACTION ABSORPTION-SPECTROMETRY TRACE CADMIUM SAMPLES hydride generation-atomic fluorescence spectrometry lead cadmium
Indexed ByCSCD
Language英语
CSCD IDCSCD:3207217
Citation statistics
Cited Times:12[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/157366
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Zou AiMei,Yong Liu,Chen MingLi,et al. A novel hydride generation system for the simultaneous determination of lead and cadmium using atomic fluorescence Spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2008,36(2):162-166.
APA Zou AiMei,Yong Liu,Chen MingLi,&Wang JianHua.(2008).A novel hydride generation system for the simultaneous determination of lead and cadmium using atomic fluorescence Spectrometry.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,36(2),162-166.
MLA Zou AiMei,et al."A novel hydride generation system for the simultaneous determination of lead and cadmium using atomic fluorescence Spectrometry".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 36.2(2008):162-166.
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