采用色谱技术对炭黑中的多环芳烃进行常规测定。

Routine determination of polycyclic aromatic hydrocarbons in carbon black by chromatographic techniques.

作者信息

Zoccolillo L, Liberti A, Coccioli F, Ronchetti M

出版信息

J Chromatogr. 1984 Apr 24;288(2):347-55. doi: 10.1016/s0021-9673(01)93711-2.

Abstract

A method is proposed for the determination of polycyclic aromatic hydrocarbons (PAHs) in carbon blacks. The PAHs are extracted from the carbon black with benzene in a Soxhlet apparatus, purified by silica gel thin-layer chromatography, weighed and analysed by gas and/or high-performance liquid chromatography. The total PAH and benzo[a]pyrene (BaP) concentrations in different types of carbon blacks and in different batches of the same carbon black were determined. It is shown that the distribution of the PAH fraction in different types of carbon blacks is almost the same but there are considerable differences in the total amount of the PAH fraction and the BaP concentration.

摘要

提出了一种测定炭黑中多环芳烃（PAHs）的方法。多环芳烃用索氏提取器中的苯从炭黑中提取出来，通过硅胶薄层色谱法纯化，称重并通过气相色谱和/或高效液相色谱法进行分析。测定了不同类型炭黑以及同一炭黑不同批次中的总多环芳烃和苯并[a]芘（BaP）浓度。结果表明，不同类型炭黑中多环芳烃组分的分布几乎相同，但多环芳烃组分总量和BaP浓度存在显著差异。