Jump to main content
Jump to site search


Miniaturized UV-LED Photochemical Vapor Generator for Atomic Fluorescence Spectrometric Determination of Trace Selenium

Abstract

A miniaturized UV-LED Photochemical reactor is proposed for selenium photochemical vapor generation (Photo-CVG). The miniaturized Photo-CVG reactor in a coin size mainly consists of an ultraviolet light-emitting-diode (UV-LED) and a quartz coil with nano-TiO2 coating on its inner wall. It was coupled with an atomic fluorescence spectrometer (AFS) as a sample introduction device for trace selenium determination. Nano-TiO2 coating process, UV-LED wavelength and correlative experimental parameters, as well as potential interferences were investigated in detail. Under optimized experimental conditions, limits of detection of 0.21 and 0.28 μg L-1 for Se(VI) and Se(IV) were obtained, respectively, with relative standard deviation (n=3) of 2.5% and 1.0% for 20 μg L-1 both. The potential application of this UV-LED Photo-CVG AFS was demonstrated by successfully analyzing a certified reference water sample and several mineral water samples.

Back to tab navigation

Publication details

The article was received on 21 Feb 2018, accepted on 04 May 2018 and first published on 05 May 2018


Article type: Paper
DOI: 10.1039/C8JA00052B
Citation: J. Anal. At. Spectrom., 2018, Accepted Manuscript
  •   Request permissions

    Miniaturized UV-LED Photochemical Vapor Generator for Atomic Fluorescence Spectrometric Determination of Trace Selenium

    Z. Zou, F. Xu, Y. Tian, X. Jiang and X. Hou, J. Anal. At. Spectrom., 2018, Accepted Manuscript , DOI: 10.1039/C8JA00052B

Search articles by author

Spotlight

Advertisements