GCMS同位素内标法检测炭黑中18种多环芳烃
Analysis of 18 polycyclic aromatic hydrocarbons in carbon black by GCMS isotope internal standard method
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摘要: 多环芳烃（PAHs）是一类具有天然和人为来源的有机污染物.本研究使用超声提取炭黑中的PAHs，采用同位素内标法，建立了一套快速、准确分析炭黑中18种PAHs的GCMS检测方法，使用InertCap-35色谱柱可使得18种PAHs组分得到良好分离，在5-1000 ng·mL-1浓度范围内标准曲线线性良好，相关系数均在0.99以上.10 ng·mL-1标准品溶液连续进样6针，峰面积RSD均小于8.79%，精密度良好.实际碳黑样品中测得主要成分为芘、荧蒽和萘.该方法简单方便，能够有效的分析炭黑样品中18种多环芳烃.
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关键词:
- 多环芳烃 /
- GCMS-QP2020 NX /
- 超声提取 /
- 炭黑
Abstract: Polycyclic aromatic hydrocarbons (PAHs) are a class of organic pollutants with natural and anthropogenic sources. In this study, ultrasonic extraction coupled with isotope internal standard method was used to establish a fast and accurate GCMS method for the analysis of 18 PAHs in carbon black. InertCap-35 column was applied to obtain 18 PAHs components with good separation. The linearity of the standard curve is good in the concentration range of 5-1000 ng ·mL-1, and the correlation coefficients are all above 0.99. Standard solution at 10 ng·mL-1 were injected continuously for 6 injections, and the peak area RSD was less than 8.79%, indicating good repeatability. The main components detected in carbon black samples were fluorene, fluoranthene and naphthalene. The method is simple, convenient, and can effectively analyze the contents of 18 polycyclic aromatic hydrocarbons in carbon black samples.-
Key words:
- PAH /
- GCMS-QP2020 NX /
- ultrasonic extraction /
- carbon black
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[1] LIU Y, BECKINGHAM A, RUEGNER T, et al. Comparison of sedimentary PAHs in the rivers of Ammer (Germany) and Liangtan (China):Differences between early- and newly-industrialized countries[J].Environ Sci Technol,2013,47:701-709 [2] 田菲菲, 袁庆丹, 汪勇等. 气相色谱一质谱法检测运动场地塑胶面层中的18种多环芳烃[J]. 环境化学, 2016, 35(12):2622-2625 TIAN F F, YUAN Q D, WANG Y, et al. Determination of 18 PAHs in plastic surface of sport ground by GCMS[J]. Environmental Chemistry, 2016, 35(12):2622-2625(in Chinese).
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