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Talanta

Title:		Miniaturized point discharge-radical optical emission spectrometer: A multichannel optical detector for discriminant analysis of volatile organic sulfur compounds
Author(s):		Li M; Huang S; Xu K; Jiang X; Hou X;
Address:		"College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China. Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China. Electronic address: jiangxm@scu.edu.cn. College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China. Electronic address: houxd@scu.edu.cn"
Journal Title:		Talanta
Year:		2018
Volume:		20180530
Issue:
Page Number:		378 - 384
DOI:		10.1016/j.talanta.2018.05.082
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"In this work, we proposed a miniaturized point discharge-radical optical emission spectrometer (PD-RES) as a multichannel optical detector for discriminant analysis of various volatile organic sulfur compounds (VOSCs). Under appropriate experimental conditions, the unique molecular emission of CS radical in the vicinity of 257.6?ª+nm was recorded, as well as the atomic emission lines of C at 193.1?ª+nm and 247.8?ª+nm, the molecular emission of C(2) radical around 231.5?ª+nm and CN radical nearby 384.8?ª+nm. They were utilized as five optical channels for precise qualification and discrimination. Linear discriminant analysis (LDA) and principal component analysis (PCA) further demonstrated the robustness of this detector for discriminant analysis: 95 unknown samples from ten typical VOSCs were classified with accuracy of 98.9%. This proposed detector was further successfully applied to the discrimination of different concentrations of CS(2) in air samples and two types of isomers (functional group isomer and carbon-chain isomer)"
Keywords:		Data mining Discriminant analysis Microplasma Multichannel optical detector Optical emission spectrometry Point discharge Volatile organic compounds;
Notes:		"PubMed-not-MEDLINELi, Mengtian Huang, Shixu Xu, Kailai Jiang, Xiaoming Hou, Xiandeng eng Netherlands 2018/07/22 Talanta. 2018 Oct 1; 188:378-384. doi: 10.1016/j.talanta.2018.05.082. Epub 2018 May 30"