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Tytuł pozycji:

Solution anode glow discharge optical emission spectrometry: Volatile hydride introduction from the gas jet nozzle cathode for ultrasensitive determination of lead.

Tytuł :
Solution anode glow discharge optical emission spectrometry: Volatile hydride introduction from the gas jet nozzle cathode for ultrasensitive determination of lead.
Autorzy :
Peng X; Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
Zhao M; Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China.
Yuan M; Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China.
Wang Z; Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address: .
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Źródło :
Talanta [Talanta] 2021 Apr 01; Vol. 225, pp. 121995. Date of Electronic Publication: 2020 Dec 16.
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Publication: Amsterdam : Elsevier
Original Publication: Oxford : Pergamon Press
Contributed Indexing :
Keywords: Hydride generation; Lead; Optical emission spectrometry; Solution anode glow discharge
Entry Date(s) :
Date Created: 20210217 Date Completed: 20210218 Latest Revision: 20210218
Update Code :
20210219
DOI :
10.1016/j.talanta.2020.121995
PMID :
33592742
Czasopismo naukowe
An ultrasensitive method for the determination of Pb was developed by coupling solution anode glow discharge-optical emission spectrometry (SAGD-OES) with hydride generation (HG). Compared to solution cathode glow discharge, the introduction of analytes yielded via HG from the discharge cathode into the microplasma was demonstrated to be easily performed by SAGD in which the gas jet nozzle served as cathode and further enhanced sensitivity for Pb determination was achieved. The susceptibility of SAGD-OES to the matrix-induced interferences in the analysis of real samples was significantly improved owing to the coupling of HG. After a thorough optimization of the HG-SAGD-OES system parameters, the developed system achieved Pb detection limit of 0.061 ng mL -1 , with the corresponding relative standard deviation being <2.2% at analyte concentrations of 50 ng mL -1 . The potential application of this method was validated by successfully analyzing three certified reference materials (CRMs: GBW07311, GBW07312, and GBW07601a (GSH-1)) and human blood samples.
(Copyright © 2020 Elsevier B.V. All rights reserved.)

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