摘要
本文介绍了以海水为基体的痕量金属(Cu、Pb、Cd、Cr、Zn)标准物质的制备、均匀性和稳定性,经试验,在一年零三个月时间内各元素的浓度值为Cu5.0±0.4、Pb10.0±0.6、Cd1.00±0.06、Cr5.0±0.4、Zn70±3μg/kg。
The authors described the preparation of standard seawater which could be used for accurate determination of trace metals in seawater samples or for intercomparison purpose.
The certified value of trace metals in standard seawater is 5.0±0.4 μg/ kg (Cu), 10.0 ± 0.6 μg/kg (Pb), 1.00 ± 0.06 μg/kg (Cd), 5.0±0.4 μg/kg (Cr), and 70±3 μg/kg (Zn), respectively.
Expiration date is not less than one year.
出处
《东海海洋》
1989年第3期50-57,共8页
Donghai Marine Science
