济宁市33种市售蔬菜中亚硝酸盐含量测定
JOURNAL OF JINING MEDICAL COLLEGE(2003)
Abstract
目的为了解蔬菜中亚硝酸盐含量情况,指导居民合理选购蔬菜,减少亚硝酸盐的摄入,防止亚硝酸盐的危害.方法格里斯试剂比色法.结果亚硝酸盐在新鲜蔬菜中含量较低(0.00-0.60mg/kg),部分蔬菜中未检出亚硝酸盐,仅荠菜,香菜,大葱中亚硝酸盐的含量稍高,分别为1.00mg/kg,0.80mg/kg,0.80mg/kg.结论蔬菜中亚硝酸盐的含量,一般不超过国家制定的限量标准.新鲜蔬菜中含量更低.
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