Dennis M J, Massey R C, McWeeny D J, Knowles M E
Food Addit Contam. 1984 Jan-Mar;1(1):29-37. doi: 10.1080/02652038409385820.
A method is described for the sample clean-up and estimation of nitropolycyclic aromatic hydrocarbons (nitro-PAH) in foods. The analysis involves the novel use of a coupled capillary gas chromatograph/thermal energy analyser and provides a detection limit for 1-nitropyrene of 12 pg (equivalent to 0.02 micrograms/kg for a 50-g sample). Only 3 out of 24 samples contained detectable quantities of nitro-PAHs; these were in the range 0.2-2.0 micrograms/kg. In contrast to the widespread occurrence of the parent PAHs in foodstuffs, the presence of nitro-derivatives appears to be minimal.
本文描述了一种用于食品中硝基多环芳烃（nitro-PAH）样品净化和测定的方法。该分析方法采用了新型的毛细管气相色谱仪/热能分析仪联用技术，对1-硝基芘的检测限为12皮克（相当于50克样品中0.02微克/千克）。24个样品中只有3个含有可检测量的硝基多环芳烃，含量范围为0.2 - 2.0微克/千克。与食品中普遍存在的母体多环芳烃相比，硝基衍生物的存在似乎极少。
