Microcolumn solid-phase extraction coupled on-line to capillary liquid chromatography by a valve switching technique

	Microcolumn solid-phase extraction coupled on-line to capillary liquid chromatography by a valve switching technique
	Tian Hongzhe; Yang Bingcheng; Guan Wenna; Guan Yafeng
刊名	chinese journal of analytical chemistry
	2006-06-01
卷号	34 期号:6 页码:759-763
关键词	microcolumn solid-phase extraction capillary liquid chromatography sample preparation sea water environmental water samples
英文摘要	a packed microcolumn solid-phase extraction coupled on-line to a capillary liquid chromatography (caplc) was described and evaluated: a short packed capillary column (65 mm x 0.45 mm i.d. 5 mu m c-18), was used as the extraction cartridge and was mounted on a 10-port switching valve. a given volume of sample in a sample loop mounted on an injection valve was passed through the cartridge, which retained the target compounds of the sample. the compounds were eluted by mobile phase and entered into the analytical column for separation. anisaldehyde water sample was used as a standard sample to evaluate the system. the calibration curve was linear (r > 0.998) over the concentration range: 0.01 - 0.5 mg/l. the relative standard deviations of retention time, peak height and peak area of anisaldehyde in the linear ranges were 1.4% - 2.2%, 4.2% - 5.7% and 6.0% - 10.1%, respectively. the detection limit of anisaldehyde is 6.0 ng/l (s/n = 3) by using this device. in addition, the sensitivity of some apolar aromatic hydrocarbons compounds can be improved by 30-fold-100-fold. the method was used for the determination of trace naphthalene in sea water with detection limit of 0.128 mu g/l (s/n = 3).
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical
研究领域[WOS]	chemistry
关键词[WOS]	microextraction ; column ; enrichment ; cleanup
收录类别	SCI
语种	英语
WOS记录号	WOS:000240869900004
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140110]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem & Microinstrumentat, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Tian Hongzhe,Yang Bingcheng,Guan Wenna,et al. Microcolumn solid-phase extraction coupled on-line to capillary liquid chromatography by a valve switching technique[J]. chinese journal of analytical chemistry,2006,34(6):759-763.
APA	Tian Hongzhe,Yang Bingcheng,Guan Wenna,&Guan Yafeng.(2006).Microcolumn solid-phase extraction coupled on-line to capillary liquid chromatography by a valve switching technique.chinese journal of analytical chemistry,34(6),759-763.
MLA	Tian Hongzhe,et al."Microcolumn solid-phase extraction coupled on-line to capillary liquid chromatography by a valve switching technique".chinese journal of analytical chemistry 34.6(2006):759-763.