کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1206285 965227 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of dimethyl fumarate in desiccant and mouldproof agents using ultrasound-assisted extraction gas chromatography with electron-capture detection
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Determination of dimethyl fumarate in desiccant and mouldproof agents using ultrasound-assisted extraction gas chromatography with electron-capture detection
چکیده انگلیسی

A fast, simple, low cost, and high throughput method has been developed for the determination of dimethyl fumarate (DMF) in desiccant and anti-mould agents employed for protecting clothes, footwear and accessories from humidity and mould. The procedure is based on ultrasound-assisted extraction followed by GC-μECD analysis. The method was conveniently optimized, and the analyte was efficiently extracted from the samples in only 5 min using such a low volume of solvent (ethyl acetate) as 1 mL. Simultaneous extractions could be carried out in also 5 min without loosing efficiency. The method has been validated showing good linearity and selectivity. Precision was satisfactory with RSD of 4–5%. Recovery was evaluated in two real samples at different DMF concentration levels and was >90% in all cases. Limit of detection and quantification were at the ng g−1 level. The proposed procedure was applied to the determination of DMF in several desiccant and anti-mould samples. Although most of them were labelled as “silica gel” all the samples tested with the exception of three presented important amounts of DMF, many of them at the high μg g−1 level. The presence and the high concentrations of this allergenic fungicide in desiccant and anti-mould sachets employed in many consumer products, such as clothes and footwear, should be a matter of concern.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1216, Issue 30, 24 July 2009, Pages 5755–5758
نویسندگان
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