Determination of nitrated polycyclic aromatic hydrocarbons in diesel particulates by gas chromatography with chemiluminescent detection.
Determination of nitrated polycyclic aromatic hydrocarbons in diesel particulates by gas chromatography with chemiluminescent detection.
复制标题
气相色谱化学发光检测法测定柴油颗粒物中的硝化多环芳烃。
DOI：
10.1021/ac00271a024
复制
发表时间：
1984
影响因子：
7.4
通讯作者：
Biemann,K
中科院分区：
文献类型：
--
作者：
Yu,WC;Fine,DH;Chiu,KS;Biemann,K
本文介绍了一种测定柴油机微粒中硝化多环芳烃的分析技术。它涉及使用毛细管气相色谱法分离nltro-PAH和随后的化学发光检测。该方法的检测限为10-25 pg。在样品中选择性地检测到1-硝基萘、2-硝基萘、2-硝基芴和1-硝基芘。通过质谱法明确证实了1-硝基萘和1-硝基芘的存在。由于检测器对硝基化合物的选择性，PAH和相关衍生物的存在不会干扰分析。在过去的几年里，人们对用各种技术测定许多基质和环境样品中的硝基多环芳烃（nitro-PAH）产生了极大的兴趣（1-6）。由于它们在模拟环境条件的实验中容易形成（7，8），以及在沙门氏菌试验中观察到的强效直接致突变性（9，10）和细菌试验（9，10），
An analytical technique Is described for the determination of nitrated polycyclic aromatic hydrocarbons (nltro-PAH) In diesel particulates. It Involves the use of capillary gas chromatography for the separation of nltro-PAH and subsequent detection by chemiluminescence. The detection limit of the method Is determined to be 10-25 pg Injected on-column. 1-Nltronaphthalene, 2-nltronaphthalene, 2-nltrofluorene, and 1-nitropyrene were selectively detected In the sample. The presence of 1-nltronaphthalene and 1-nitro-pyrene were unequivocally confirmed by mass spectrometry. Because of detector selectivity to nitro compounds, the presence ofPAH and related derivatives does not Interfere with the analysis. The technique Is useful for the screening of nltroaromatlcs In complex environmental samples.During the pastseveral years, considerable interest has been focused on the determination of nitrated polycyclic aromatic hydrocarbons (nitro-PAH) in a number of matrices and en-vironmental samples by using various techniques (1-6). Be-cause of their facile formation in experiments simulating environmental conditions (7, 8) and the potent direct-acting mutagenicity observed in Salmonella assays (9, 10) and car-