Determination method for diaminotoluene in compound food package bag

The invention discloses a determination method for diaminotoluene in a compound food package bag. According to the determination method, toluene is used as an extracting solvent, and the adding amount of trifluoroacetic anhydride, the adding amount of sodium chloride in an extracting process, a derivation reaction temperature and derivation reaction time are optimized. The determination method disclosed by the invention has the beneficial effects that the defect problem in detection of a national standard method is solved, an optimized method is provided for determination of diaminotoluene in a compound food package material, and the requirements on determination of diaminotoluene in the compound food package bag are met. 本发明公开了种复合食品包装袋中二氨基甲苯的测定方法，其选用甲苯为萃取溶剂，优化了三氟乙酸酐加入量、萃取过程中氯化钠加入量、衍生反应温度及时间。本发明具有如下有益效果：解决了国标方法检测中的缺陷问题，为复合食品包装材料中二氨基甲苯的测定提供了优化方法，满足复合食品包装袋中二氨基甲苯的测定需要。