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Title: Simultaneous determination of rare earth elements in ore and anti-corrosion coating samples using a portable capillary electrophoresis instrument with contactless conductivity detection
Authors: Nguyen, Thi Anh Huong
Nguyen, Van Ri
Le, Duc Dung
Keywords: In-houses-made instrument;Capacitively coupled contactless conductivity detection (C 4 D);Capillary electrophoresis (CE);Rare earth elements (REEs);Ore samples;Vietnam
Issue Date: 2016
Publisher: H. : Đại học Quốc gia Hà Nội
Abstract: The employment of an in-house-made capillary electrophoresis (CE) instrument with capacitively cou-pled contactless conductivity detection (C 4 D) as a simple and inexpensive solution for simultaneous determination of many rare earth elements (REEs) in ore samples from Vietnam, as well as in anti-corrosion coating samples is reported. 14 REEs (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) were determined using an electrolyte composed of 20 mM arginine and 10 mM -hydroxyisobutyric acid adjusted to pH 4.2 with acetic acid. The best detection limit achieved was 0.24 mg/L using the developed CE-C 4D method. Good agreement between results from CE-C 4D and the confirmation method (ICP-MS) was achieved, with a coefficient of determination (r 2 ) for the two pairs of data of 0.998
Description: JOURNAL OF CHROMATOGRAPHY A Volume: 1457 Pages: 151-158 ; TNS06415
Appears in Collections:Bài báo của ĐHQGHN trong Web of Science

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