standard addition method meaning in English

标准加入法
标准物添加法

Simulaneous spectrophotometric determination of iron , cobalt and nickel by k - ratio and h - point standard addition method
点标准加入分光光度法同时测定铁钴镍的研究
A method called " k - ratio h - point standard addition method " was proposed for the simultaneous determination of nitrate and nitrite , based on their ultraviolet absorption spectrum in a neutral medium
摘要研究了在近中性介质中，硝酸根与亚硝酸根的紫外吸收光谱，提出了引用“ k比例h点标准加入法”同时测定了硝酸根、亚硝酸根含量的方法。