色谱

色谱 ›› 2010, Vol. 28 ›› Issue (08): 800-804.DOI: 10.3724/SP.J.1123.2010.00800

• 技术与应用 • 上一篇    下一篇

顶空气相色谱-质谱法测定玩具中的10种挥发性有机物

吕庆, 张庆*, 康苏媛, 白桦, 王超   

  1. 中国检验检疫科学研究院工业品检验研究所, 北京 100123
  • 收稿日期:2010-05-24 修回日期:2010-06-28 出版日期:2010-08-28 发布日期:2010-08-28
  • 通讯作者: 张庆,博士,助理研究员.
  • 基金资助:

    质检公益性行业科研专项项目(No. 200810953).

Determination of 10 volatile organic compounds in toys by headspace gas chromatography-mass spectrometry

Lü Qing, ZHANG Qing*, KANG Suyuan, BAI Hua, WANG Chao   

  1. Institute of Industrial Product Inspection, Chinese Academy of Inspection and Quarantine, Beijing 100123, China
  • Received:2010-05-24 Revised:2010-06-28 Online:2010-08-28 Published:2010-08-28

PDF

816

被引次数

67

摘要： 建立了检测玩具中10种挥发性有机物(VOC)残留量的顶空气相色谱-质谱(HS-GC-MS)方法。样品经140 ℃、45 min静态顶空后,通过DB-624色谱柱分离和质谱检测,外标法定量。该方法对于不同VOC的定量限(LOQ)均在0.66 mg/kg以下,线性范围为0.001～2.0 μg,平均回收率在79%～106%之间,相对标准偏差(RSD)在0.4%～5.6%之间。该方法具有准确灵敏、简单快速等特点,将其应用于实际玩具样品的检测取得了良好效果。

关键词: 顶空气相色谱-质谱法, 挥发性有机物, 玩具

Abstract: A headspace gas chromatography-mass spectrometry (HS-GC-MS) method was developed for the determination of 10 residual volatile organic compounds (VOCs) in toys. The experimental conditions such as headspace temperature, headspace time and the analytical conditions of GC-MS were optimized. Toy samples were treated at 140 ℃ for 45 min, and then the evolved products were separated on a DB-624 column, determined by MS and quantified by external standard method. The recoveries were from 79% to 106% and the relative standard deviations (RSDs) were from 0.4% to 5.6%. The linear range was 0.001-2.0 μg with a good linear correlation coefficient (r＞0.9940) and the limits of quantification (LOQ) were less than 0.66 mg/kg. The method is accurate, simple, rapid, and is suitable for the analysis of residual VOCs in various toys.

Key words: toys, volatile organic compound, headspace gas chromatography-mass spectrometry (HS-GC-MS)