NDLI: Porous silver coating fiber for rapidly screening organotin compounds by solid phase microextraction coupled with surface enhanced Raman spectroscopy

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhan, Jinhua Wang, Le Liu, Zhen Bian, Weiwei Zhang, Min
Copyright Year	2017
Abstract	Preclinical research reveals the risk of organotin compounds (OTCs) as potent endocrine disruptors, immunotoxicants and environmental obesogens for mammals. OTCs are commercial antifungal agents which are found extensively in clothing, female hygiene products and childcare articles. OTCs have been listed as restricted chemicals by REACH Regulation (Annex XVII). Here, a hyphenated method combining surface enhanced Raman spectroscopy (SERS) with solid phase microextraction (SPME) is proposed for rapid screening of OTCs. A porous Ag layer was synthesized in situ and served as the SERS-active SPME coating for adsorption. The SERS spectra of trimethyltin chloride, tributyltin chloride and triphenyltin chloride were investigated, the bands at 554 cm−1, 1410 cm−1 and 999 cm−1, respectively, being selected as the characteristic peaks for quantitative determination. The extraction conditions were optimized. The good stability and uniformity of porous Ag fibers insure a high enhancement factor of 9.1 × 105 and low LOD of 0.2 ppb for triphenyltin chloride. The proposed method was successfully applied to identify a mixture of OTCs in a textile matrix with satisfactory results.
Starting Page	3117
Ending Page	3124
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	6
Journal	RSC Advances
DOI	10.1039/c6ra25491h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Endocrine system Triphenyltin compounds Surface-enhanced Raman spectroscopy Solid-phase microextraction Fungicide Trimethyltin chloride Registration, Evaluation, Authorisation and Restriction of Chemicals Organotin chemistry Chloride Adsorption Extracellular matrix Tributyltin
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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