ABSTRACT A device to extract and collect polycyclic aromatic hydrocarbons (PAHs) released from aqueous solutions at different temperatures (13, 50, 80 and 95°C) was constructed. Acenaphthylene (Acy), fluorene (Flu), phenanthrene (Phe), pyrene (Pyr) and benzo(k)fluoranthene B(k)F were used in this study. The PAHs were dragged off from the samples at sub-boiling temperatures by a heated argon flow. The released PAHs were collected in solid adsorbents and acetonitrile cold traps, as well. HPLC-UV was used to quantify the mixtures of PAHs released from the aqueous solutions. Among the investigated PAHs, only the heaviest B(k)F was not extracted at all. The extraction yields were calculated for each temperature of the argon flow, namely: at 95°C, Acy 67.19%, Flu 44.54%, Phe 43.97% and Pyr 36.50%; at 80°C, Acy 62.08%, Flu 49.53%, Phe 31.53% and Pyr 15.72%; at 50°C, Acy 47.07%, Flu 28.89%, Phe 14.75% and Pyr 0.00%; and at 13°C, Acy 11.80%, Flu 6.80%, Phe 0.00% and Pyr 0.00%.

中文翻译：

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从不同温度水溶液中提取和收集多环芳烃的研究

摘要构建了一种提取和收集在不同温度（13、50、80 和 95°C）下从水溶液中释放的多环芳烃 (PAH) 的装置。本研究使用苊 (Acy)、芴 (Flu)、菲 (Phe)、芘 (Pyr) 和苯并 (k) 荧蒽 B(k)F。在亚沸点温度下，通过加热的氩气流将多环芳烃从样品中拖走。释放的多环芳烃也被收集在固体吸附剂和乙腈冷阱中。HPLC-UV 用于量化从水溶液中释放的多环芳烃混合物。在调查的多环芳烃中，只有最重的 B(k)F 根本没有被提取出来。对氩气流的每个温度计算萃取率，即：在95°C，Acy 67.19%，Flu 44.54%，Phe 43.97%和Pyr 36.50%；在 80°C，Acy 62.08%，Flu 49.53%，Phe 31.53% 和 Pyr 15。72%；在 50°C，Acy 47.07%，Flu 28.89%，Phe 14.75% 和 Pyr 0.00%；在 13°C，Acy 11.80%、Flu 6.80%、Phe 0.00% 和 Pyr 0.00%。