在线凝胶渗透色谱-气相色谱-串联质谱非衍生化法测定食品中氯丙醇

引用本文: 易青, 苗虹, 吴永宁. 在线凝胶渗透色谱-气相色谱-串联质谱非衍生化法测定食品中氯丙醇[J]. 分析化学, 2016, 44(5): 678-684. doi: 10.11895/j.issn.0253-3820.150789 shu

Citation: YI Qing, MIAO Hong, WU Yong-Ning. Derivatization-free Method for Chloropropanols Determination in Food by Online Gel Permeation Chromatography-Gas Chromatography-Triple Quadrupole Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry, 2016, 44(5): 678-684. doi: 10.11895/j.issn.0253-3820.150789 shu

在线凝胶渗透色谱-气相色谱-串联质谱非衍生化法测定食品中氯丙醇

1.
武汉轻工大学食品科学与工程学院, 农产品加工湖北省协同创新中心, 武汉 430000;
2.
国家食品安全风险评估中心, 卫生部食品安全风险评估重点实验室, 北京 100021
基金项目:
本文系国家重点基础研究发展计划973课题(No.2012CB720840)资助

摘要: 建立了食品中氯丙醇类化合物的非衍生化在线凝胶渗透色谱-气相色谱-串联质谱(Online GPC-GC-MS/MS)测定方法,目标化合物包括3-氯-1,2-丙二醇(3-MCPD)、2-氯-1,3-丙二醇(2-MCPD)、1,3-二氯-2-丙醇(1,3-DCP)和2,3-二氯-1-丙醇(2,3-DCP)。样品中加入氘代同位素内标后,采用Extrelut^TMNT硅藻土进行固相支持液液萃取净化,用正己烷淋洗去除非极性杂质,以乙酸乙酯萃取目标物,萃取液经浓缩后直接采用Online GPC-GC-MS/MS测定。4种氯丙醇在0.005~1.000 mg/L范围内呈良好线性,相关系数均大于0.999,4种氯丙醇的检出限在0.002~0.005 mg/kg之间,定量限在0.005~0.01 mg/kg之间。以空白酱油样品为代表性基质的3个水平(0.02,0.1和0.5 mg/kg)的加标回收率和相对标准偏差(RSD,n=6)分别为94.8%~106.3%(2.2%~10.3%),91.8%~108.8%(2.1%~10.6%)和83.1%~109.4%(1.3%~9.4%)。采用本方法分别对酱油、水解植物蛋白液(粉)、料酒、鸡精、面包和糕点样品进行检测,均得到了满意的测定结果。

关键词:

English

Derivatization-free Method for Chloropropanols Determination in Food by Online Gel Permeation Chromatography-Gas Chromatography-Triple Quadrupole Mass Spectrometry

1.
School of Food Science and Engineering, Wuhan Polytechnic University, Hubei Collaborative Innovation Center for Processing of Agricultural Products, Wuhan 430000, China;
2.
Key Laboratory of Food Safety Risk Assessment, Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing, 100021, China
Received Date: 10 October 2015
Revised Date: 22 December 2015
Fund Project:
This work was supported by the State Key Development Program for Basic Research of China (No. 2012CB720840)

Abstract: A derivatization-free method for chloropropanols determination in food using online gel permeation chromatography-gas chromatography-triple quadrupole mass spectrometry (Online GPC-GC-MS/MS) with free of derivatization was established. The target compounds were 3-monochloropropane-1,2-diol (3-MCPD), 2-monochloro-propane-1,3-diol (2-MCPD), 1,3-dichloropropan-2-ol (1,3-DCP) and 2,3-dichloropropan-1-ol (2,3-DCP). Samples were spiked with isotope internal standards, and extracted by matrix solid-supported liquid-liquid extraction on the ExtrelutTM NT absorbent. Hexane was added to wash away the apolar matrix interferences and then ethyl acetate was used to extract the target compounds. The concentrated extracts were directly injected into Online GPC-GC-MS/MS. The good linear relationships for the four types of analytes were obtained in the concentration range of 0.005-1.000 mg/L with correlation coefficients not less than 0.999. The limits of detection and quantitation for chloropropanols in the food samples were in the ranges of 0.002-0.005 mg/kg, and 0.005-0.01 mg/kg respectively. The recoveries and the relative standard deviations (RSD, n=6) for the spiked blank samples at the levels of 0.02, 0.1, 0.5 mg/kg were in the ranges of 94.8%-106.3% (2.2%-10.3%), 91.8%-108.8% (2.1%-10.6%) and 83.1%-109.4% (1.3%-9.4%), respectively. The established method was applied to the samples of soy sauce, hydrolyzed vegetables protein solution and powder, cooking wine, chicken powder, bread and cake, and satisfactory results were acquired.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

在线凝胶渗透色谱-气相色谱-串联质谱非衍生化法测定食品中氯丙醇

English

Derivatization-free Method for Chloropropanols Determination in Food by Online Gel Permeation Chromatography-Gas Chromatography-Triple Quadrupole Mass Spectrometry

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

在线凝胶渗透色谱-气相色谱-串联质谱非衍生化法测定食品中氯丙醇

English

Derivatization-free Method for Chloropropanols Determination in Food by Online Gel Permeation Chromatography-Gas Chromatography-Triple Quadrupole Mass Spectrometry

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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