济南镉污染检测与分析..doc

目录 中文摘要及关键词………………………………………………………………1 英文摘要及关键词………………………………………………………………1 前言………………………………………………………………………………2 试验材料与方法…………………………………………………………………4 实验结果…………………………………………………………………………6 讨论………………………………………………………………………………8 结论………………………………………………………………………………9 建议及对策………………………………………………………………………10 参考文献…………………………………………………………………………11 致谢………………………………………………………………………………12 翻译………………………………………………………………………………13 济南市主城区市售海产品镉污染的测定与分析 摘要:目的 调查济南市售海产品干货中镉的含量，及时发现和消除可能影响海产品干货食品安全的隐患，探讨消除食品中镉含量的方法，为相关部门进一步监测和制定相应措施提供依据。方法 在济南各大主要超市及市场采集海产品干货，包括虾皮、海米及鱼类海产品干货，经微波消解后，用石墨炉原子吸收法检测其中的镉含量，与行业标准进行比较，计算其超标率。结果 共检测样品58份，虾皮及海米的样品中均未见超标样品，镉含量均值虾皮海米，鱼类干货中发现超标部分，超标率达50%，并且用单项污染指数评价，有重度污染，中度污染及轻度污染三种情况。结论 提示山东近海流域可能出现镉污染情况，需要加强市场监测，改善食品质量，降低水产品干货中镉的含量，制定健全的国家标准。 关键词：水产品干货；镉含量；石墨炉原子吸收法；对策 Survey on the cadmium levels in seafood sold in Jinan Abstract:Objective To investigate the cadmium content of the dry seafood sold in Jinan , discover and eliminate the hidden dangers that may affect the safety of seafood , and discuss the methods to eliminate the cadmium content in the food. , The result might provide the basis for the further monitoring by the relevant department and establishing measures accordingly. Methods The collection of dry cargo seafood were carried out in major supermarkets and markets，including shrimp, dry fish and HaiMi. After the microwave digestion, the cadmium content was detected by graphite furnace atomic spectroscopy, and the results were compared with the corresponding standards. Results The total samples were 58. No over-standard samples were found in shrimp skin and HaiMi but in dry fishes. The average cadmium content of shrimp skin was lower than that of Haimi, and that in dry fish was over-standard in 50% samples. When evaluated with the single pollution index , the status of severe, moderate, and light pollution are all existed. Conclusion The Shandong offshore basin may appear cadmium pollution situation, therefore we need to strengthen the market monitoring, improve