分析测试学报2011，Vol.30Issue(2)：171-175,5.DOI:10.3969/j.issn.1004-4957.2011.02.010
顶空气相色谱-质谱法测定涂料中的5种挥发性有机物
Determination of 5 Volatile Organic Compounds in Coatings by Headspace Gas Chromatography- Mass Spectrometry
摘要
Abstract
A headspace ( HS ) coupled with gas chromatography - mass spectrometric ( GC - MS )method was developed for the determination of 5 residual volatile organic compounds (VOCs) in coating samples. The experimental conditions, such as solvent type, equilibrium temperature and time, as well as the analytical conditions of GC - MS, were optimized. The samples were first dissolved in water- N, N-dimethylformamide (1 ∶ 1, by volume)and treated at 90 ℃ for 90 min, then separated on a DB-VRX capillary column(30 m ×0. 25 mm × 1.4 μm), and determined by GC -MS with the external standard method. The results indicated that the recoveries were in the range of 82％ - 105％with relative standard deviations(RSDs) of 0. 5％ - 3.9％. The linear range of 5 VOCs were in the range of 0. 013 3 -6. 67 mg/L with correlation coefficient no less than 0. 998 9. The limits of quantitation (S/N = 10) were no more than 10 mg/kg. The method was used to determine 5 VOCs in 22 kinds of solvent-based coating and 31 kinds of waterborne coating samples. The result indicated that the proposed method was simple, accurate, rapid and sensitive and could be applied in the rapid analysis of residual VOCs in various coatings.关键词
顶空气相色谱-质谱法/挥发性有机物/涂料Key words
headspace gas chromatography - mass spectrometry ( HS/GC - MS)/ volatile organic compound/ coatings分类
化学化工引用本文复制引用
吕庆,张庆,康苏媛,白桦,王超..顶空气相色谱-质谱法测定涂料中的5种挥发性有机物[J].分析测试学报,2011,30(2):171-175,5.基金项目
国家质检总局检验检疫科研项目(2008IK064) （2008IK064）
