Direct determination of parts-per-billion levels of germanium in botanical samples and coal fly ash by graphite furnace atomic absorption spectrometry

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Direct determination of parts-per-billion levels of germanium in botanical samples and coal fly ash by graphite furnace atomic absorption spectrometry
	Zhang, DQ; Ni, ZM; Sun, HW
刊名	FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
	1997
卷号	358 期号:5 页码:641-645
英文摘要	Parts-per-billion levels of germanium can be determined directly by graphite furnace atomic absorption spectrometry (GFAAS) using palladium plus strontium as a mixed modifier resulting in pyrolysis temperatures up to 1400 degrees C without loss of germanium. At this temperature the matrix effect including the most troublesome sulfate interference can be eliminated. Palladium plus strontium nitrate is advantageous compared to palladium alone or palladium plus magnesium nitrate; an amount of 15 mu g of sulfate does not show any interference on the determination of 1 ng of germanium. The method was successfully applied to the determination of ng/g levels of germanium in botanical samples and coal fly ash after thermal decomposition of the samples in a mixture of acids using a pressure bomb. The results were consistent with the reference values given for botanical samples and coal fly ash with a recovery range of 96.4 similar to 103.4%.
WOS记录号	WOS:A1997XK99700013
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24345]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Zhang, DQ,Ni, ZM,Sun, HW. Direct determination of parts-per-billion levels of germanium in botanical samples and coal fly ash by graphite furnace atomic absorption spectrometry[J]. FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY,1997,358(5):641-645.
APA	Zhang, DQ,Ni, ZM,&Sun, HW.(1997).Direct determination of parts-per-billion levels of germanium in botanical samples and coal fly ash by graphite furnace atomic absorption spectrometry.FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY,358(5),641-645.
MLA	Zhang, DQ,et al."Direct determination of parts-per-billion levels of germanium in botanical samples and coal fly ash by graphite furnace atomic absorption spectrometry".FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY 358.5(1997):641-645.