含钒碳质页岩中钒的物相分析  

Phase Analysis of Vanadium in Carbonaceous Shale

作　　者：靳晓珠 

机构地区：[1]有色金属桂林矿产地质测试中心,桂林541004

出　　处：《分析试验室》2000年第2期50-52,共3页Chinese Journal of Analysis Laboratory

摘　　要：将含钒碳质页岩经物相分离后 ,在浓度为 0 .75mol/ L H3 PO4介质中及 H2 O2 存在下 ,以 Na F、Cy DTA为掩蔽剂 ,5- Br- PADAP为显色剂 ,分别测定矿物各相中钒的含量。方法检出限为 2 .6× 1 0 -8mol/ L,RSD为4 .9% ( n=5)In the medium of 0.75 mol/L H 3PO 4 and in the presence of H 2O 2,using NaF and CyDTA as screening agent and 5 Br PADAP as the color reagent ,vanadium in each phase was determined after it was separated from carbonaceous shale.The limit of detection is 2.6×10 -8 mol/L,and the relative standard deviation is less than 4.9% ( n =5).The method was checked and accepted by production and the results are satisfactory.

关 键 词：光度法 碳质页岩 钒 物相分析 5-BR-PADAP 

分 类 号：P585.3[天文地球—岩石学] O614.511[天文地球—地质学]