紫薯矿物质元素与环境相关性[][].docVIP

目 录 中英文摘要………………………………………………………………………2 1紫薯的综合利用………………………………………………………………3 1.1 紫薯的营养价值………………………………………………………………1.2 紫薯的深加工和市场前景………………………………………………………1.3 矿物质元素的生物效应…………………………………………………………1.4 矿物质元素测试方法进展………………………………………………………2实验部分………………………………………………………………………2.1 仪器及试剂……………………………………………………………………2.1.1仪器…………………………………………………………………………2.1.2 试剂…………………………………………………………………………2.2 标准系列配制…………………………………………………………………2.3 样品及处理方法………………………………………………………………2.4 仪器条件………………………………………………………………………2.4.1 仪器工作参数………………………………………………………………2.5 线性关系及相关系数…………………………………………………………3 结果与讨论…………………………………………………………………3.1 样品的测定结果………………………………………………………………3.2 样品的测定结果分析…………………………………………………………4结束语…………………………………………………………………………参考文献………………………………………………………………………声明……………………………………………………………………………1致谢……………………………………………………………………………1 紫薯中矿物质元素含量及与环境相关性 罗媛 （内江师范学院 化学化工学院，四川 内江 641112） 摘 要：Cu、Fe、Zn、Mn、Ca、MgPb、CdK、NaCa、Mg、K、Na、FePb含量极少，Cd未检出。紫薯中Ca含量高达6799.82ug/g，Mg为830.18ug/g，K为6800.00ug/g，Na为3180.00ug/g，Cu含量相对较低，含量为7.46 ug/g。测试相对偏差RSD小于9.4%，标准曲线相关系数r在0.9965至1.0000。紫薯与土壤中元素含量存在一定的相关性。实验结果为研究紫薯的营养价值和食疗保健功效的关系提供了基础数据，为提高紫薯品质，保持土壤及紫薯的优良特性，优化种植管理提供了参考信息。 关键词：原子吸收；火焰光度；紫薯；土壤；元素Correlation between the mineral elements in Solanum tuberdsm and environment Luo Yuan （School of Chemistry and Chemical Engineering , Neijiang, Sichuan 641112, China） Abstract: The content of copper、zinc、ferric、manganese、calcium and magnesium in Solanum tuberdsm have been determined by the method of waterish digestion-flame atomic absorption sepectrometry (FAAS), lead and cadmium were determined by graphite furnace -AAS，potassium and sodium were determined by flame photometryIn this experiment, the results showed that Solanum tuberdsm was rich in the necessary mental elements for human, the content of calcium、magnesium、potassium、sodium were more , the content of the deleterious element were lowand the Cadmium was not detected .The most content of calcium in Solanum tuberdsm was 6799.82ug/g.the contents of magnesium in Solanum tuberdsm was 830.18ug/g, potassium was 6800.00ug/g,sodiu