皮革科学与工程 ›› 2019, Vol. 29 ›› Issue (06): 53-57.doi: 10.19677/j.issn.1004-7964.2019.06.010

• 标准化与检验 • 上一篇    下一篇

静态顶空-气相色谱-质谱法同时测定皮革中30种有机挥发物

周良春1,2, 张晓飞1,2, 王睿1, 马俊辉1,2, 李双琦1,2, 胡伟1,2   

  1. 1.成都产品质量检验研究院有限责任公司,四川 成都 610100;
    2.国家包装产品质量监督检验中心,四川 成都 610100
  • 收稿日期:2019-04-28 出版日期:2019-12-28 上线日期:2020-03-27
  • 作者简介:周良春(1986-),男,硕士研究生,工程师,研究方向:有害物质分析及食品接触材料的检验检测。

Simultaneous Determination of 30 Volatile Organic Compounds in Leather by Static Headspace Gas Chromatography-mass Spectrometry

ZHOU Liangchun1,2*, ZHANG Xiaofei1,2*, WANG Rui1, MA Junhui1,2*, LI Shuangqi1,2*, HU Wei1,2*   

  1. 1. Chengdu Institute of Product Quality Inspection and Research Co., Ltd., Chengdu 610100, China;
    2. National Center for Packaging Material Quality Supervision and Inspection, Chengdu 610100, China
  • Received:2019-04-28 Online:2019-12-28 Published:2020-03-27

摘要: 建立了静态顶空-气相色谱-质谱法同时测定皮革中30种有机挥发物(包括:丙酮、苯、1-甲氧基-2-丙醇、2-乙氧基乙醇等)的分析方法。分别讨论了顶空平衡温度和平衡时间对分析物丰度的影响。结果表明,将皮革样品剪成大小约0.5 cm×0.5 cm的颗粒,于120 ℃,加热40 min后,顶空进样,用选择离子(SIM)模式扫描,基质校正,外标法定量,可获得较好的定量结果。30种有机挥发物含量在0.5~50.0 μg范围内,线性关系良好,各物质相关系数(r)均大于0.999,方法检出限范围为0.05~0.50 mg/kg,通过低、中、高三个浓度加标,回收率均在82.0%~104.2%之间,相对标准偏差(n=6)在1.7%~9.8%之间。该方法前处理简单、快速、准确,适用于皮革中30种有机挥发物的检测。

关键词: 静态顶空, 气相色谱-质谱联用仪, 皮革制品, 基质校正, 外标法, 挥发性有机化合物

Abstract: A method was developed for the determination of 30 volatile organic compounds (including acetone, benzene, 1-methoxy-2-propanol and 2-ethoxyethanol, etc.) in leather by static headspace gas chromatography-mass spectrometer(HS-GC-MS). The effects of headspace equilibrium temperature and equilibrium time on abundance of analytes were investigated respectively. The 30 VOCs were scanned in selective ion mode(SIM), conducted by mass spectrometry detector, and the contents were calculated by the matrix correction and external standard method. The results showed that VOCs were well quantitatively analyzed while the headspace equilibrium temperature at 120 ℃ for 40 min with the sample diameter 0.5 cm × 0.5 cm. The calibration curves were linear in the range of 0.5 -50.0 μg with the correlation coefficients of each substance more than 0.999. The limits of detection were 0.05 - 0.50 mg/kg. The average recovery rate ranged from 82.0% to 104.2%, and the relative standard deviations(n=6) were 1.7% - 9.8%. This method could be suitable for the determination of 30 VOCs in leather rapidly and accurately.

Key words: static headspace, gas chromatography-mass spectrometry, leather products, matrix correction, external standard method, volatile organic compounds

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