PMID- 32534664 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200615 LR - 20200614 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 1124 DP - 2020 Aug 8 TI - Can low-temperature point discharge Be used as atomic emission source for sensitive determination of cyclic volatile methylsiloxanes? PG - 121-128 LID - S0003-2670(20)30565-1 [pii] LID - 10.1016/j.aca.2020.05.030 [doi] AB - Despite of increased interest in the application of miniature microplasma atomic spectrometry for environmental analytical chemistry, the amenable element detection range is limited to some metal elements and carbon due to it low power consumption. In this work, the generation of silicon atomic emission (251.6 nm and 288.2 nm) from the organosiloxanes was found possible in a low-temperature, low-power, and compact point discharge. Consequence, a tiny point discharge silicon optical emission spectrometer (muPD-OES) was exploited, and used as a novel GC detector for the determination of various cyclic volatile methyl siloxanes (cVMSs). Under the optimized conditions, the developed system provided limits of detection (LODs) of 0.2 mg L(-1), 0.04 mg L(-1), 0.03 mg L(-1) and 0.02 mg L(-1) of Si for hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane, respectively. Meanwhile, relative standard deviations (RSDs) of better than 2.3% were obtained. In contrast to gas chromatography mass spectrometer, GC-muPD-OES significantly simplifies the experimental setup with low power consumption and a miniature configuration. As far as we know, this work reports for the first time that silicon atomic emission can be generated in such low temperature microplasma. The accuracy of this system was validated by determining cVMSs in five daily-used shampoo samples collected from retail store, providing satisfactory recoveries (84%-114%) and excellent agreement with values determined by GC-MS at the 95% confidence level. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Yang, Yuan AU - Yang Y AD - Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China. FAU - Wang, Yao AU - Wang Y AD - Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China. FAU - Hou, Xiaoling AU - Hou X AD - Chengdu Environmental Monitoring Center, Chengdu, Sichuan, 610072, China. FAU - Lin, Yao AU - Lin Y AD - Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China. FAU - Yang, Lu AU - Yang L AD - National Research Council Canada, Ottawa, Ontario, Canada, K1A 0R6. FAU - Hou, Xiandeng AU - Hou X AD - Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China. FAU - Zheng, Chengbin AU - Zheng C AD - Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China. Electronic address: abinscu@scu.edu.cn. LA - eng PT - Journal Article DEP - 20200514 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 SB - IM OTO - NOTNLM OT - Cylic OT - Gas chromatography-microplasma-optional emission spectroscopy OT - Personal care products OT - Point discharge OT - Silicon atomic emission OT - Siloxanes COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/06/15 06:00 MHDA- 2020/06/15 06:01 CRDT- 2020/06/15 06:00 PHST- 2019/12/19 00:00 [received] PHST- 2020/04/17 00:00 [revised] PHST- 2020/05/11 00:00 [accepted] PHST- 2020/06/15 06:00 [entrez] PHST- 2020/06/15 06:00 [pubmed] PHST- 2020/06/15 06:01 [medline] AID - S0003-2670(20)30565-1 [pii] AID - 10.1016/j.aca.2020.05.030 [doi] PST - ppublish SO - Anal Chim Acta. 2020 Aug 8;1124:121-128. doi: 10.1016/j.aca.2020.05.030. Epub 2020 May 14.