两次双波长分光光度法同时测定原油中的镍和钒  

SIMULTANEOUS DETERMINATION OF NICKEL AND VANADIUM IN CRUDE OIL BY TWO-TIMES AND DUAL-WAVELENGTH SPECTROPHOTOMETRY

作　　者：李天增[1] 杨铭枢 王成元[1] 张朋 

机构地区：[1]大庆职业学院化工系,大庆163255 [2]大庆东昊公司表面活性剂一分公司,大庆163211

出　　处：《化学分析计量》2006年第4期40-42,共3页Chemical Analysis And Meterage

摘　　要：采用系数补偿和双峰双波长的两次双波长分光光度法，以5-Br-PADAP为显色剂、Triton X-100为增溶增敏剂，同时测定原油中Ni（Ⅱ）和V（Ⅴ）。Ni（Ⅱ）和V（Ⅴ）的线性范围分别为：0～15μg／（25mE）和0～10μg／（25mL），回收率分别为95.0％～103.0％、96.0％～101.5％，测定结果的相对标准偏差分别为0．39％、3．33％。Nickel and vanadium in crude oil were determined simultaneously by two-times and dual-wavelength spectrophotometry with 5-Br-PADAP as chromogenic agent and Triton X-100 as sensitized agent. The linear range was 0 - 15 μg/（25 mL） for Ni （Ⅱ） and 0 - 10 μg/（ 25 mL） for V （ Ⅴ ） , and recoveries were 95.0% - 103.0% , 96.0% - 101.5% respectively . The relative standard deviation was 0.39%, 3.33% respectively.

关 键 词：双波长分光光度法 镍 钒 测定 

分 类 号：O657.32[理学—分析化学] TE624.1[理学—化学]