Simultaneous Analysis of Trace Cu2+, Ca2+ and Zn2+ in Surface Water from Yangtze and Jialing River with Kalman Filter-Spectrophotometry
LIU Xin-an1,2,DING Yun-shong2,LUO Yan-feng3
1. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China 2. Chemistry & Chemical Engineering College, Chongqing University, Chongqing 400044, China 3. Bioengineering College, Chongqing University, Chongqing 400044, China
Abstract：1-(2-pyridine azo)-2-naphthol(PAN) is one of color reagent to determine the concentration of many trace metal ions. The analyzing conditions of PAN chelating reaction with three metal ions such as Cu2+, Cd2+ and Zn2+, the spectral properties at maximum absorption wavelength of these chelate compounds, pH effect and reaction time and so on were studied. Combining with Kalman filter algorithm and spectrophotometric simultaneously determining on-line technology the water samples containing the three metal ion compounds chelated with PAN from our laboratory, Yangtze Rive and Jialing River were analyzed quantitatively under optimal analysis condition, and the recovery is between 90.2%-106% for samples of laboratory. The analysis results for real samples from Yangtze Rive and Jialing River by the Kalman filtering algorithm compared with the corresponding pollution data from the governmental water quality monitoring sites at same sampling sites have well consistency so that the method could be directly, conveniently used for monitoring quantificationally real samples containing multimetal ions in various surface water of rivers simultaneously.
刘信安1,2,丁云松2,罗彦凤3. 卡尔曼滤波-分光光度法同时分析长江和嘉陵江地表水中的微量铜、镉和锌[J]. 光谱学与光谱分析, 2008, 28(06): 1383-1386.
LIU Xin-an1,2,DING Yun-shong2,LUO Yan-feng3. Simultaneous Analysis of Trace Cu2+, Ca2+ and Zn2+ in Surface Water from Yangtze and Jialing River with Kalman Filter-Spectrophotometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(06): 1383-1386.
[1] ZHANG Yin-bo, YU Yu-mian, LIU Chun-ying, et al(张音波, 余煜棉, 刘春英, 等). Journal of Guangdong University of Technology(广东工业大学学报), 2002, 9(3): 74. [2] NI Yong-nian(倪永年). The Use of Chemometrics in Analytical Chemistry(化学计量学在分析化学中的应用). Beijing：Science Press(北京: 科学出版社), 2004. 86. [3] YU Yu-mian, ZHANG Yin-bo, LIU Chun-ying, et al(余煜棉, 张音波, 刘春英, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2003, 23(5): 1005. [4] ZHONG Cheng-hua(钟成华). The Impact of San Gorge Reservoir in Chongqing Water Area ＆ Countermeasure(三峡水库对重庆段水环境影响及其对策). Chongqing: The Southwest Normal University Publishing Company(重庆: 西南师范大学出版社), 2002. 1. [5] CHENG Guang-lu, SHANG Ye Jing-ping(程广禄, 上野景平). Handbook of Organic Analytic(有机分析试剂手册). Beijing: Geologic Publishing Company(北京: 地质出版社), 1985, 5: 142. [6] WEI Jian-ying, ZHANG Shao-heng(魏剑英, 张绍衡). Journal of Zhengzhou Institute of Light Industry(郑州轻工业学院学报), 1997, 12(1): 45. [7] MA Tong-sen, ZHANG Shun-li(马同森, 张顺利). Chinese Journal of Analytical Chemistry(分析化学研究简报), 1999, 27(7): 825. [8] LIU Ying, CHEN Lin, WU Ha-shen, et al(刘 颖, 陈 琳, 吴哈申, 等). Inner Mongolia Petrochemical Industry(内蒙古石油化工), 1996，22: 39. [9] ZHENG Huai-li, ZHU Yan(郑怀礼, 祝 艳). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2003, 23(6): 1075.
