摘要
按《海洋监测规范》GB 17378.4-2007与德国国家标准方法 DIN38406-16的原理,对海水中镍的实际样品与加标样品分别使用无火焰原子吸收分光光度法和阳极溶出伏安法进行测定。GF-AAS法和ASV法测定海水中镍的加标回收率分别为98.83%-101.2%、112.8%-114.1%,实验室内标准偏差分别为5.36%-6.36%、10.89%-15.41%。依据实验结果,无火焰原子吸收分光光度法对海水中镍测定的准确度、精密度优于阳极溶出伏安法。
According to the principles in DIN 38406 -16 and GB 17378. 4 -2007, nickel in actual seawater samples and spike samples were determined by graphite furnace atomic absorption spectrometry and anodic stripping voltammetry. Comparing the GF - AAS and ASV of measuring nickel in seawater, the standard addition recoveries are 98.83% -101.2% and 112. 8% -114. 1%, and the relative standard deviations in laboratory are 5.36% - 6. 36% and 10. 89% - 15.41% respectively. According to the experimental data, GF - AAS measuring Ni in seawater is better than ASV in accuracy and precision.
出处
《环境与可持续发展》
2015年第2期140-141,共2页
Environment and Sustainable Development