Multiple Headspace SPME after Matrix Modification for Eliminating Matrix Effect in the Determination

来源 :第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会 | 被引量 : 0次 | 上传用户：yuehan3269

【摘要】

：

【作者】

：

Xuena Zhang Yahong Han Geng Zou Changwen Ye Xiujuan Li

【机构】

：

College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China

【出处】

：

第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会

【发表日期】

：

2011年3期

【关键词】

：

Multiple headspace solid-phase microextraction Ethyl carbamate Matrix modificati

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　　Multiple headspace solid-phase microextraction (MHS-SPME) combined with gas chromatography-nitrogen phosphorus detector is proposed to determine the toxic contaminant ethyl carbamate (EC) in various alcoholic beverages after matrix modification.A novel polyethylene glycol/hydroxy-terminated silicone oil fiber was used instead of commercial ones because of its high extraction ability.Anhydrous sodium sulphate was added to modify the matrix and the extraction efficiency of EC was greatly improved.The optimum conditions for MHS-SPME were as follows: extraction time, 10 min; extraction temperature, 35 ℃; Na2SO4 addition, 4.0 mg/μL of sample; volume of sample, 20 μL.

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Multiple Headspace SPME after Matrix Modification for Eliminating Matrix Effect in the Determination

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