天津地区5种大樱桃中金属元素含量的比较

Comparation of metal elements content of 5 kinds of Cerasus pseudocerasus in Tianjin area

中文关键词:  天津地区  大樱桃  电感耦合等离子体质谱  微量元素

英文关键词:Tianjin area  Cerasus pseudocerasus  inductively coupled plasma mass spectrometry  inorganic elements

中文摘要:

      目的 比较天津地区种植的5个大樱桃品种中的元素含量。方法 采用电热板湿法消解-电感耦合等离子质谱法, 以国家标准物质苹果为质控样品, 建立一种针对大樱桃中18种元素进行定量分析方法。 结果 标准物质的测定值均在参考证书值范围内, 加标回收率在87.9%~106.4%之间, 表明所建立的方法准确、可靠。大樱桃中含有人体所必需的微量元素, 重金属含量低于国家限量指标。结论 5个大樱桃品种之间, 无论元素总量, 还是K、Fe、Ca三种元素含量, 在不同品种间均存在显著差异(P<0.05), 为我国居民的膳食消费提供更科学的评价和指导。

英文摘要:

      Objective To compare the element content of the 5 kinds of Cerasus pseudocerasus varieties grown in Tianjin. Methods A quantitative analysis method for 18 elements in Cerasus pseudocerasus was established by hot plate wet digestion-inductively coupled plasma mass spectrometry. Results The determination results of standard reference materials conformed with the certified values, the recoveries of standard addition were between 87.9% and 106.4%, and so the results showed that the established method was accurate and reliable. The Cerasus pseudocerasus contained the essential trace elements for the human body, and the content of heavy metals was lower than the national limit indicator. Conclusion There are significant differences among different varieties, no matter the total amount of elements or the contents of K, Fe, Ca. The paper provides more scientific evaluation and guidance for the dietary consumption of Chinese residents.