微量元素是人类不可缺少的营养要素,为了评价它们的营养质量,以制定群体和个体的膳食计划和寻找含人体必需微量元素合适的食物,我们测定了山西省28种主要食物中铜、锰、锌、铅、镉、铁、钴、镍、铬和锶的含量。 材料和方法 1.样品的采集:样品采自全省十一个地市的非污染区。根据各地区人民的饮食习惯,农副业生产提供的食品量和品种情况,确定采样品种,于收获季节到农户家采样。水果采自全省产量集中的特产区。 2.样品处理:样品经水洗后,取可食部分凉干、碳化、小于450℃灰化、称重,求出灰 Trace elements are indispensable to human nutrition, in order to evaluate their nutritional quality, in order to develop diet programs for groups and individuals and to find suitable foods containing trace elements necessary for human body, we measured the 28 kinds of food in Shanxi Province, copper, manganese, Zinc, lead, cadmium, iron, cobalt, nickel, chromium and strontium content. Materials and methods 1. Sample collection: Samples were collected from 11 non-polluted areas in the province. According to the dietary habits of people in all localities, the quantity and varieties of food provided by the agricultural and sideline agricultural production, the sampling varieties are determined, and sampling is taken to the peasant households during the harvesting season. Fruit taken from the province’s concentrated production of specialty products. 2. Sample Processing: After the sample was washed, take edible part of dry, carbonized, less than 450 ℃ ashing, weighing, to find the gray