Determination of cadmium at the nanogram per liter level in seawater by graphite furnace AAS using cloud point extraction

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

	Determination of cadmium at the nanogram per liter level in seawater by graphite furnace AAS using cloud point extraction
	Yuan, CG; Jiang, GB; Cai, YQ; He, B; Liu, JF
刊名	ATOMIC SPECTROSCOPY
	2004
卷号	25 期号:4 页码:170-176
英文摘要	A method based on cloud point extraction was developed to determine cadmium at the nanogram per liter level in sea-water by graphite furnace atomic absorption spectrometry. Diethyldithiocarbamate (DDTC) was used as the chelating reagent to form Cd-DDTC complex; Triton X-114 was added as the surfactant. The parameters affecting sensitivity and extraction efficiency (i.e., pH of the solution, concentration of DDTC and Triton X-114, equilibration temperature, and centrifugation time) were evaluated and optimized. Under the optimum conditions, a preconcentration factor of 51.6 was obtained for a 20-ml, water sample. The detection limit was as low as 2.0 ng L-1 and the analytical curve was linear in the 10.0-200.0 ng L-1 range with satisfactory precision (RSD < 4.7%). The proposed method was successfully applied to the trace determination of cadmium in seawater.
研究领域[WOS]	Spectroscopy
WOS记录号	WOS:000223666200003
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23433]
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	Yuan, CG,Jiang, GB,Cai, YQ,et al. Determination of cadmium at the nanogram per liter level in seawater by graphite furnace AAS using cloud point extraction[J]. ATOMIC SPECTROSCOPY,2004,25(4):170-176.
APA	Yuan, CG,Jiang, GB,Cai, YQ,He, B,&Liu, JF.(2004).Determination of cadmium at the nanogram per liter level in seawater by graphite furnace AAS using cloud point extraction.ATOMIC SPECTROSCOPY,25(4),170-176.
MLA	Yuan, CG,et al."Determination of cadmium at the nanogram per liter level in seawater by graphite furnace AAS using cloud point extraction".ATOMIC SPECTROSCOPY 25.4(2004):170-176.