【摘要】 采用微波消解法处理样品,电感耦合等离子体质谱法(ICP-MS)测定辽宁省朝阳地区较为常见的八种小杂粮(玉米、黏米、高粱米、红豆、豇豆、苏立豆、燕麦和荞麦)中铁、锌、铜、锰、硒、钼、钴、铬、镍九种人体必需的微量元素含量。结果表明,朝阳地区杂粮中人体必需的微量元素含量丰富,半微量元素铁及微量元素锌、锰含量相对较高,同种样品中不同微量元素的差异较大;杂粮中豆类的钼、钴含量最为丰富,显著高于米类和麦类杂粮(P<0.05),麦类杂粮中含有较为丰富的锰元素。该结果可为杂粮的营养价值评价及加工与利用提供科学依据,并对人们合理膳食具有一定的指导意义。更多还原

【Abstract】 Treating the samples with microwave digestion method,we determined and analyzed the nine kinds of essential trace elements’ level such as Fe,Zn,Cu,Mn,Se,Mo,Co,Cr and Ni in the eight kinds of coarse cereals(corn,glutinous rice,sorghum rice,red bean,cowpea,Sulidou,oats and buckwheat) which were common in Chaoyang area by inductively coupled plasma mass spectrometry(ICP-MS).The results showed that,the contents of essential trace elements in human body were rich in coarse cereals in Chaoyang area,the contents of Fe and essential trace elements such as Zn and Mn were relatively high,and the differences of different trace elements in the same sample were larger.The contents of Mo and Co were the most abundant in beans,and significantly higher than that of rice and wheat(P<0.05).The content of Mn was rich in wheat.In conclusion,the results could provide scientific basis for the evaluation of nutritive value,processing and utilization of coarse cereals,and had a certain guiding significance on human reasonable diet.更多还原