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目的了解陕西省淡水鱼中孔雀石绿的污染状况,评估陕西居民孔雀石绿的膳食暴露量,对陕西居民通过淡水鱼摄入孔雀石绿的人体健康风险进行评估。方法样品经匀浆提取后采用中性氧化铝固相萃取小柱净化,BEH C18(2.1 mm×100mm,2.5μm)色谱柱分离,利用超高效液相色谱串联质谱法进行含量测定,采用暴露边界比法对陕西省居民通过淡水鱼摄入孔雀石绿的人体健康风险进行评估。结果陕西省淡水鱼中孔雀石绿的检出率为7.32%,最大值为428μg/kg。不同品种淡水鱼中孔雀石绿的检出率差别较大,以鲶鱼中的检出率最高,为28.57%。陕西省十个地市中榆林的检出率最高,为33.33%。结论陕西省淡水鱼中残留的孔雀石绿对人体的健康风险很低,但违规使用孔雀石绿的现象比较严重,相关部门应加强对孔雀石绿的监管力度。
Objective To understand the pollution status of malachite green in freshwater fish in Shaanxi Province, assess the dietary exposure of malachite green in Shaanxi Province, and evaluate the human health risk of inhabitants using malachite green in freshwater fish in Shaanxi Province. Methods The samples were homogenized and purified by neutral alumina solid phase extraction cartridges. The samples were separated on a BEH C18 (2.1 mm × 100 mm, 2.5 μm) column and determined by ultra performance liquid chromatography-tandem mass spectrometry Comparison of the law of Shaanxi Province residents through the intake of freshwater fish malachite green human health risk assessment. Results The detection rate of malachite green in freshwater fish in Shaanxi Province was 7.32% with the maximum of 428μg / kg. The detection rates of malachite green in different species of freshwater fish are quite different, with the highest detection rate in catfish (28.57%). The highest detection rate of Yulin in ten cities in Shaanxi Province was 33.33%. Conclusions The malachite green remaining in freshwater fish in Shaanxi Province is at a very low risk to human health. However, the phenomenon of using malachite green in violation of rules is rather serious. Relevant departments should strengthen their supervision of malachite green.