In this papetr the optimum conditIoas for 6 Br-PADAP-Ni complex formation have been studied. The interference of other elements can be elimenated by extraction of the complex with tri-octylam9ae-dimethyl benzene from 7-8 N hydrochloric acid. The sensitivity of this extractant is abont ten times than that with ethyl ether.
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李玉珍,1982,用5-Br-PADAP为显色剂萃取光度法测定铁矿中微量镍[J].岩石矿物学杂志,1(2):63~65.,1982,Extractive Spectrophotometric Determination of Micro Amounts of Nickel in lron ores with 5-Br-PADAP as Chromogenic agent[J]. Acta Petrologica et Mineralogica,1(2):63~65.
