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KMID : 0385520160290050242
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Analytical Science & Technology
2016 Volume.29 No. 5 p.242 ~ p.247
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Establishment for analytical method of methanol in wet wipes by headspace gas chromatography
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Choi Yong-Kyu
Baek Eun-Ji
Min Chung-Sik
Lee Rhee-Da
Park Soon-Young
Ahn Jae-Hyung
Kim Sang-Seop
Hong Seung-Hwa
Kim Young-Lim
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Abstract
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This research aims to set up and validate methods of analyzing the methanol in wet wipes and verifies the analysis methods that applied to the wet wipes. We used Headspace (HS) Gas Chromatography (GC) - Flame Ionization Detector (FID) to the establish analysis method of methanol in wet wipes and optimized heating temperature, heating time, GC conditions with column. The result indicated that 3 mL of sample in 20 mL headspace vial can be equilibrated efficiently in headspace sampler at 70 oC for 10 min and sample was measured by GC with spli injection mode(10:1). The results show that linearity from 1 to 100 ppm was over R2 0.9995, precision was RSD 1.83 % and accuracy(recovery rate) was 105.44 (±1.05 %) on water matrix and wet wipes matrix removed non-woven fabric. Also, monitoring results of total 20 cosmetics on the market, from 0.00017 to 0.00156 % of methanol was detected from wet wipes.
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KEYWORD
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cosmetic, methanol, wet wipes, headspace gas chromatography
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