摘要:目的——寻找更为精确、轻松测定新资源食品中锰含量,检测红茶、榛子(干)、口蘑、芝麻籽(黑)、胭脂麻、木耳(干)以及黑豆中锰含量。方法——将硝酸—高氯酸(混酸)用于对样品的分解,使用Contra AA 300/700连续光源高分辨原子吸收光谱仪测定食品中锰含量。结果——在实验中对标准溶液10.0 mg·L-1重复测定十次,RSD为0.69%,加标回收率在96.6%~101.2%间,因此本实验对
This paper mainly discussed the operation benefits of fruit dealers in farm market. Taking fruit dealers in Shizishan Street Farm market in Wuhan City as the re
Based on the theory of activity-based costing and the idea of value chain,activity optimization and cost control are carried out on the whole construction proce