目的建立一种快速检测碎米中有机磷农药残留量的方法,用于注射用葡萄糖原料碎米的质量监控。方法采用气相色谱法与氮磷检测器(NPD)快速检测碎米中的12种农药残留。结果所建立的方法学的线性范围是0.1-5.0 ppm、检出限为0.98-6.24 ppb、检测限为3.27-20.8 ppb、相关系数均大于0.9995;精密度、重复性的RSD均在6.3%以下;回收率在87.25%-108.4%。结论本文建立了碎米中有机磷农药残留的快速检测方法,为注射用葡萄糖的制备筛选出合格的碎米原料提供了有效保障。
objective To establish a determination method of the organophosphate in the broken rice, which can be used to control the glucose-injection quality. Methods 12 kinds of pesticides residues were rapid detected by using gas chromatography adding NDP detector. Results The linear range in the established determination method was 0.1-5.0 ppm, the .imit of detection was 0.98-6.24 ppb, the limit of qualification was 3.27-20.8 ppb, and the correlation coefficient were all more than 0.995. Furthermore, the RSDs of the precision and repeatability tests were under 6.3%, the coeffecient of recoveiy was between 87.25%-108.4%. Conclusion This study had established a set of method to detect scientific organophosphorus pesticide residues. It will provide effective guarantee for screen raw broken-rice materials of the injection glucose.