DETERMINATION OF CADMIUM IN BIOLOGICAL-MATERIALS BY FLAME ATOMIC-ABSORPTION SPECTROMETRY WITH FLOW-INJECTION ONLINE SORPTION PRECONCENTRATION

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	DETERMINATION OF CADMIUM IN BIOLOGICAL-MATERIALS BY FLAME ATOMIC-ABSORPTION SPECTROMETRY WITH FLOW-INJECTION ONLINE SORPTION PRECONCENTRATION
	FANG, ZL; XU, SK; DONG, LP; LI, WQ; FANG, ZL, ACAD SINICA,INST APPL ECOL,FLOW INJECT ANAL RES CTR,BOX 417,SHENYANG 110015,PEOPLES R CHINA
刊名	TALANTA
	1994
卷号	41 期号:12 页码:2165-2172
ISSN号	0039-9140
英文摘要	A new on-line preconcentration flame atomic absorption spectrometry (FAAS) system for trace element determination was developed based on sorption of soluble metal complexes on the walls of a PTFE knotted reactor using flow injection techniques. The system was applied to the determination of cadmium in biological materials. Cadmium complexed with sodium diethyldithiocarbamate was sorbed on the inner walls of the reactor and eluted on-line by isobutyl methyl ketone. The retention efficiency was 81% at a sampling loading rate of 5.2 ml/min. The enhancement factor was 66 and the concentration efficiency was 61/min with a 50 sec preconcentration period, consuming 4.2 ml sample. A detection limit of 0.1 mu g/l. Cd (3 sigma) was obtained with a sampling frequency of 55/hr. The precisions were 1.2% RSD for 20 mu g/l. Cd (N = 11). Thiourea and ascorbic acid/phenanthroline were used to overcome interferences from copper and iron, respectively. The analytical results obtained for powdered rice and human hair standard reference materials were in good agreement with the certified values.
学科主题	Chemistry, Analytical
语种	英语
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55725]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	FANG, ZL, ACAD SINICA,INST APPL ECOL,FLOW INJECT ANAL RES CTR,BOX 417,SHENYANG 110015,PEOPLES R CHINA
推荐引用方式 GB/T 7714	FANG, ZL,XU, SK,DONG, LP,et al. DETERMINATION OF CADMIUM IN BIOLOGICAL-MATERIALS BY FLAME ATOMIC-ABSORPTION SPECTROMETRY WITH FLOW-INJECTION ONLINE SORPTION PRECONCENTRATION[J]. TALANTA,1994,41(12):2165-2172.
APA	FANG, ZL,XU, SK,DONG, LP,LI, WQ,&FANG, ZL, ACAD SINICA,INST APPL ECOL,FLOW INJECT ANAL RES CTR,BOX 417,SHENYANG 110015,PEOPLES R CHINA.(1994).DETERMINATION OF CADMIUM IN BIOLOGICAL-MATERIALS BY FLAME ATOMIC-ABSORPTION SPECTROMETRY WITH FLOW-INJECTION ONLINE SORPTION PRECONCENTRATION.TALANTA,41(12),2165-2172.
MLA	FANG, ZL,et al."DETERMINATION OF CADMIUM IN BIOLOGICAL-MATERIALS BY FLAME ATOMIC-ABSORPTION SPECTROMETRY WITH FLOW-INJECTION ONLINE SORPTION PRECONCENTRATION".TALANTA 41.12(1994):2165-2172.