摘要
目的:测定猪饲料中铜、锌的含量。方法:采集猪饲料0.200 0 g,采用微波消解、火焰原子吸收法检测饲料中铜、锌的含量。结果:饲料中铜、锌含量分别为106.3、245.6μg/g,加样回收率分别为107.0%、95.2%,相对标准偏差(RSD)分别为2.937%、0.577%。结论:饲料中铜、锌的含量均符合国家标准;该法具有检出限低、灵敏度高、快速、准确的特点,用于实际样品测定的结果令人满意。
Objective： in order to determine the content of copper and zinc in pigs feed. Methods： the sample at 0.200 0 g were collected and pretreated by microwave digestion,and then determined the content of copper and zinc by flame atomic absorption spectrometry. Results： the content of copper and zinc in feed were 106.3 μg / g,245.6 μg / g respectively,the recovery for the samples was 107.0%,95.2% respectively,the relative standard deviation（ RSD） was 2.937%,0.577%.Conclusion： the content of copper and zinc in the both feed conforms with national standards; the method offers advantages of low detection limit,high sensitivity,speedinessand accuracy. The results of the determination of trace elements in samples are satisfactory.
作者
陈明飞
赵海
姚刚
吴曙光
Chen Mingfei Zhao Hai Yao Gang Wu Shuguang(Laboratory Animal Institute, College of Guiyang Traditional Chinese Medicine, Guiyang Guizhou 550002, Chin)
出处
《贵州畜牧兽医》
2016年第5期13-15,共3页
Guizhou Journal of Animal Husbandry & Veterinary Medicine
关键词
微波消解
铜
锌
原子吸收光谱法
Microwave Digestion
Copper and Zinc
Atomic Absorption Spectrometry
