钙镁磷肥副产物磷铁中镍的测定

FCMP Distribution of Nickel in

在pH=6.2的HAc-NaAc缓冲溶液中,镍与偶氮胂Ⅲ形成1∶3的蓝色配合物。且镍含量在0~1μg/mL符合比尔定律,在620 nm处有最大吸收。在焦磷酸钾存在下测定了镍磷铁中镍的含量。

In pH=6.2 of HAc-NaAc buffer solution,Ni and the formation of arsenazo Ⅲ blue 1∶3 complex.And nickel content in 0～1 ？g/mL law is obeyed,Department has maximum absorption at 620 nm.In the presence of potassium pyrop Hosp Hate determination of nickel in the nickel content of iron pHospHate.