Vannucchi C, Salvadori R, Nottoli R, Ghimenti G, Taponeco G
S TA NU. 1976 Mar-Apr;6(2):101-14.
A analytical method to identify and quantitate residues of polychlorinated biphenyls, polychlorinated terphenyls, polychorinated naphtalenes and some chlorinated pesticides is described. These contaminants can be recovered from foods or other materials: a silicic acid coloumn chromatografic method previously developed is used to separate PCB's, PCT's, PCN's from organochlorinated pesticide residues. The PCB's, PCT's, PCN's residues identification and their subsequent quantitation can be achieved by conversion into well defined single perchloro-derivatives, viz decachlorobiphenyl, o.m.p. tetradecachloroterphenils and octachloronaftalene, detactable by GLC-EC. The reagnet of exhaustive chlorination of PCB's and PCT's residues is SbCl5, while the reagent used for the exhaustive chlorination of PCN's residues is SO2Cl2 with powdered anhydrous AlCl3 as a catalyst. The identity of perchloroderivatives obtained by chlorination of PCB's, PCT's, PCN's standard mixtures is confirmed on comparing their infrared spectra with the spectra of high purity standards.
本文描述了一种用于鉴定和定量多氯联苯、多氯三联苯、多氯萘以及某些氯代农药残留的分析方法。这些污染物可从食品或其他材料中回收：采用先前开发的硅酸柱色谱法将多氯联苯、多氯三联苯、多氯萘与有机氯农药残留分离。多氯联苯、多氯三联苯、多氯萘残留的鉴定及其随后的定量可通过转化为明确的单一全氯衍生物来实现，即十氯联苯、邻、间、对十四氯三联苯和八氯萘，可通过气相色谱 - 电子捕获法检测。多氯联苯和多氯三联苯残留的完全氯化试剂是五氯化锑，而多氯萘残留的完全氯化试剂是二氯化硫，并以无水氯化铝粉末作为催化剂。通过将多氯联苯、多氯三联苯、多氯萘标准混合物氯化得到的全氯衍生物的身份，通过将其红外光谱与高纯度标准品的光谱进行比较来确认。
