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《Pollution Control Technology》 1995-04
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Color Reaction and Its Application to CPAPA with Thorium

Thorium reacts with P-actyl chorophosphionazo (CPApA) to form a 1:2 complex in 0.1 mol/ L HCl medium with an absorptiom maximum at 676nm. The apparent molar absorptivity is 7. 68 ×104 L · mol-1 · cm-1. Beer's law is obeyed for o to 55 μg ThO2 in 25 ml Solution. The method is simple and rapid.
【CateGory Index】: X837
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Chinese Journal Full-text Database 1 Hits
1 YANG Xiangzhen (Analysis Research Centre of East China Geology Bureau, CNNC, Nanchang,Jiangxi330002,China);General Situation on Spectrophotometric Analysis of Thorium[J];Hydrometallurgy of China;2003-02
Chinese Journal Full-text Database 10 Hits
1 Zhen Xueshan(Anhui Building Material Industry College,Hefe 230051);Color Reation of Thorium with 2-(5-bromo2-pyridyazo)-5-diethylaminopheno[J];JOURNAL OF JIANGXI NORMAL UNIVERSITY (NATURAL SCIENCES EDITION);1996-01
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4 Li Zubi; Wang Jialin(Adult Educalion College, Yunnan University, Kunming 650091 )Xu Qiheng(Department of Chemistry, Yunnan University, Kunming 650091 );Spectrophotometric Determination of Thorium with Nile Blue and Molybdothorate Heteropoly Acid[J];Chinese Journal of Analytieal Chemistry;1996-08
5 Yuan Liming, Chen Xuexian, Wu Hesong, Xu Yu (Department of Chemistry, Yunnan Normal University, Kunming 650092) Zhang Shihong, Xu Qiheng (Department of Chemistry, Yunnan University, Kunming 650091);Spectrophotometric Determination of Thorium(Ⅳ) With 2, 4, 6-Trihalogenated Chlorophosphonazo in the Presence of Emulgent OP[J];Chinese Journal of Analytieal Chemistry;1998-09
6 Huang Yali , Liu Shaopu (Institute of Environmental Chemistry, Southwest China Normal University, Chongqing 400715);Colour Reaction of Thorium(Ⅳ)With Bromophosphonazo -mB and Tetradecylpyridinium Bromide in Ethanol-Aqueous Solution and Its Analytical Application[J];Chinese Journal of Analytical Chemistry;1999-04
7 Yin Jiayuan, Tang Danyu, Yang Guangyu, Gu Kun, Wu Chunhua (Department of Chemistry, Yunnan University, Kunming 650091);Color Reaction of 4-(H-acidazo)-l-phenyl-3-methylpyazolone with Thorium and Its Application[J];Chinese Journal of Analytical Chemistry;1999-08
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10 ZHOU Wei-Liang , PAN Jiao-Mai WANG Jian-Xing(Dept of Chem. ,East China Normal Univ. ,Shanghai,200062) (Dept. of Chem. ,Xinxing Normal College, Xiaxiang);Simultaneous Determination of Thorium and Lanthanum in Waste Water with the Use of Kalman Filter-Spectrophotometry[J];Chemical Research In Chinese Universities;1993-06
【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 XU Hong-zhi,CHEN Zhi-wei,LIU Dong-wu,NIU Jin-ye (Analytical and Testing Center,Shandong University of Technology,Zibo 255049,China);ICP-MS Determination of Micro-amounts of Uranium and Thorium in Mineral Slags[J];Physical Testing and Chemical Analysis(Part B:Chemical Analysis);2008-10
2 CHU Quan-li1,CAO Shu-qin2,ZHOU Zhi-quan2(1.Department of Radiation Safety,China Institute of Atomic Energy,Beijing 102413,China;2.Beijing Research Institute of Chemical Engineering and Metallurgy,Beijing 101149,China);Analytical methods of trace impurities in uranium and its compounds and their application[J];Uranium Mining and Metallurgy;2009-01
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