(湖南大學(xué)化學(xué)化工系， 長沙 410082)
摘 要: 以兩性表面活性劑溴化十六烷基二甲基氨基乙酸作為新增效 試劑，研究了鈦、錫、鉬、鎢-鄰氯苯基熒光酮顯色體系的光度性質(zhì)，并用卡爾曼濾波分光光度法進(jìn)行同時(shí)測(cè)定。合成試樣中鈦、錫、鉬、鎢的回收率范圍及相對(duì)標(biāo)準(zhǔn)偏差分別為96.2%～106.3％、96.7%～104.5％、92.2%～107％、97.7%～105.6％和3.76％、3.24％、5.09％、2.81％；合金鋼樣中微量鈦、錫、鉬、鎢測(cè)定的相對(duì)誤差為5.0 ％～11.8％。
關(guān)鍵字: 卡爾曼濾波 多組分分光光度法 鄰氯苯基熒光酮 鈦 錫 鉬 鎢
（Department of Chemistry and Chemical Engineering, Hunan University, Changsha 410082）
Abstract:A new spectrophotometry of M-O-CPF-CDMAA has been investigated systematically based on the colour reaction of Ti (IV), Sn(IV), Mo(VI) and W(VI) with sensitive reagent O-chlorophenyl fluorine (O-CPF), and a newly good enhancing reagent celyl dimethylaminoacetic acid (CDMAA). Kalman filter has been applied to simultaneous determination of the above four metallic ions in various samples with satisfactory results. The recoveries of Ti, Sn, Mo, W of synthetic samples are 96.2%～106.3％, 96.7%～104.5％, 92.2%～107％, 97.7%～105.6％, respectively and the relative errors of alloy steel samples are 5.0%～11.8％ for Ti(IV), Sn(IV), Mo(VI), W( VI).
Key words: Kalman filter multicomponent spectrophotometry O-chlorophenyl fluorine alloy steel titanium tin molybdenum tungsten
