大理市散装食品包装纸中砷含量的测定与分析

目的：了解大理市散装食品包装纸中砷的含量。方法：采用银盐法分析散装食品包装纸中砷含量情况。结果：16份样品中,12份检出砷,检出率为75.0%,16份样品均未超过国家标准值,合格率为100%。通过对各大超市和散装点检出率及砷含量进行比较,检出率差异有统计学意义,而含量差异无统计学意义;对是否含有油墨两种样品中的检出率及砷含量进行比较,检出率差异有统计学意义,而含量差异无统计学意义。结论：本次所检测的散装食品包装纸的卫生状况还是比较好的,但其砷的检出率高,说明仍存在一些问题,卫生监督部门应该引起重视。

Determination and Analysis of the Arsenic Content in the Bulk Food Wrapping Paper in Dali

Objective: To investigate the content of arsenic in the bulk food wrapping paper in Dali.Methods: Arsenic content in the bulk food wrapping paper was determined by silver diethyl-dithiocarbamate method.Results: There were 16 kinds of bulk food wrapping paper in survey,arsenic was found in 12 samples and the detection rate was 75%,all 12 samples met the national standard of arsenic content,the pass rate was 100%.Detection rates were significantly different in samples from the major supermarkets to the bulk-stores,however,there was no difference of the arsenic content among samples from supermarkets and the bulk-stores.The contents of printing ink were also different in samples from the major supermarkets to the bulk-stores,but with the same pass rate.Conclusion: The sanitation status of bulk food wrapping paper in Dali is good but with relatively high content of arsenic,to which the health supervision departments should pay attention.