Ultra-sensitive determination of inorganic arsenic valence by solution cathode glow discharge-atomic emission spectrometry coupled with hydride generation

doi:10.1039/c7ja00228a

	Ultra-sensitive determination of inorganic arsenic valence by solution cathode glow discharge-atomic emission spectrometry coupled with hydride generation
	Guo, Xiaohong 1,2; Peng, Xiaoxu 2; Li, Qing 2; Mo, Jiamei 2; Du, Yiping 1; Wang, Zheng 2
刊名	Journal of Analytical Atomic Spectrometry
	2017
卷号	32 期号:12 页码:2416-2422
ISSN号	02679477
DOI	10.1039/c7ja00228a
英文摘要	A simple and ultra-sensitive method for the determination of inorganic arsenic valence was developed by solution cathode glow discharge atomic emission spectrometry (SCGD-AES) coupled with hydride generation (HG). Arsenic was converted into volatile hydrides by the reaction with NaBH4and HCl, after which they were delivered and subsequently injected into the near-anode region of the SCGD, where they were detected directly by atomic emission spectrometry (AES). The detection limit (DL) for arsenic was improved by four orders of magnitude compared to the single SCGD-AES process. The main operational parameters and sources of potential interference that affect the determination of arsenic were thoroughly studied. Under optimal conditions, the DLs for As(iii) and As(v) were both calculated to be 0.3 μg L-1. Repeatability, expressed as the relative standard deviation of the spectral peak height, was 2.5% (n = 11) for a 0.1 mg L-1arsenic solution. The proposed method was validated by the determination of a certified reference material (NIST SRM 1568a) and was applied to the real rice samples, where the measurement results obtained by the HG-SCGD-AES method were in good agreement with the reference values or values from hydride generation atomic fluorescence spectrometry. © 2017 The Royal Society of Chemistry.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25609]
专题	中国科学院上海硅酸盐研究所
通讯作者	Du, Yiping
作者单位	1.Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai; 200237, China; 2.Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Dingxi Road, Shanghai; 200050, China
推荐引用方式 GB/T 7714	Guo, Xiaohong,Peng, Xiaoxu,Li, Qing,et al. Ultra-sensitive determination of inorganic arsenic valence by solution cathode glow discharge-atomic emission spectrometry coupled with hydride generation[J]. Journal of Analytical Atomic Spectrometry,2017,32(12):2416-2422.
APA	Guo, Xiaohong,Peng, Xiaoxu,Li, Qing,Mo, Jiamei,Du, Yiping,&Wang, Zheng.(2017).Ultra-sensitive determination of inorganic arsenic valence by solution cathode glow discharge-atomic emission spectrometry coupled with hydride generation.Journal of Analytical Atomic Spectrometry,32(12),2416-2422.
MLA	Guo, Xiaohong,et al."Ultra-sensitive determination of inorganic arsenic valence by solution cathode glow discharge-atomic emission spectrometry coupled with hydride generation".Journal of Analytical Atomic Spectrometry 32.12(2017):2416-2422.