作　　者： ; ; ;

机构地区： 广东石油化工学院

出　　处： 《广东石油化工学院学报》 2016年第1期31-34,共4页

摘　　要： 为了检测坚果中有益人体健康的微量元素含量,采用微波消解法对4种坚果（花生、核桃、板栗、苦杏仁）进行消解,并利用火焰原子吸收光谱法测定其Ca、Cu、Zn、Mn、Fe这5种微量元素的含量。结果表明：方法加标回收率在97.17%～102.00%之间,相对标准偏差均小于1.52%,该方法具有良好的精密度和准确度。4种坚果中均富含Ca、Cu、Zn、Mn、Fe元素,但每种微量元素的含量在各坚果里是有差异的,人们可依据自身需要有选择地食用坚果,以达到人体对微量元素需求平衡的目的。 In order to detect the content of trace elements in nuts which benefit the health of human body,four kinds of nuts（ peanut,walnut,chestnut,bitter almond） are digested with microwave,and the contents of five trace elements,including calcium,copper,zinc,manganese,iron are determined by flame atomic absorption spectrometry. The experimental results show that the recovery of standard addition is between 97. 17% and 102. 00%,and relative standard deviation is less than 1. 52%. This method is of precision and accuracy. Four kinds of nuts are rich in Calcium,Copper,Zinc,Manganese,Iron,but the content of each trace element in these nuts is different. People can choose the nuts according to the needs of their body in order to balance the demand for trace elements.

关 键 词： 坚果 微量元素 微波消解 火焰原子吸收光谱法

领　　域： [理学] [理学]