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《Journal of Anhui Agricultural Sciences》 2008-30
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Simultaneous Determination of NO_3~- and NO_2~- and the Implementation of MATLAB and SAS for Its Data Treatment

FU Jin-xiang et al(College of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shengyang,Liaoning 110168)  
The measurement of NO-3 and NO-2 were carried out simultaneously by means of the ultraviolet two-wavelength first derivative spectrophotometry and its data analysis was implemented by the MATLAB and SAS.The results showed that measurement wavelength for NO-3 was 209 nm by means of the method of the ultraviolet derivative spectrophotometry.However,two-wavelength for NO-2 were 210.5 and 222 nm,respectively,by means of the method of the ultraviolet two-wavelength isoabsorption spectrophotometry.Under the help of SAS,it was showed that the relation between the absolute value of derivative absorbency and the logarithms of the content x for NO-3 were linear and its R-Square=0.965 3;Meanwhile,it was also showed that the relation between the y of derivative difference value absorbency and the logarithms of the content x for NO-2 were linear and its R-Square=0.981 8.The predicted result of the above two kinds of ion content through the analysis of BP algorithm illuminated that the precision was very high.It could concluded that the combination of MATLAB and SAS could enhance the accuracy and the reliability for data treatment.
【CateGory Index】: X132
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【Citations】
Chinese Journal Full-text Database 2 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 FENG Yue-hua et al(College of Agronomy,Guizhou University,Guiyang,Guizhou 550025);Analysis of Repeated Measure Data and its Implementations of SAS in Single-factor Randomized Complete Block Design[J];Journal of Anhui Agricultural Sciences;2007-36
2 FU Jin-xiang et al(Municipal and Environmental Engineering Faculty,Shenyang Jianzhu University,Shenyang,Liaoning 110168);Simultaneous Determination of NO_3~- and NO_2~- by Means of Ultraviolet Derivative Spectrophotometry and Implementations of MATLAB and SAS for Its Data Treatment[J];Journal of Anhui Agricultural Sciences;2008-33
3 CHAI Rui et al(Jiangsu Key Laboratory of Meteorological Disaster,Nanjing University of Information Science and Technology,Nanjing,Jiangsu 210044);Comparative Analysis of Potential Thunderstorm Forecast Methods Based on the Convective Parameters[J];Journal of Anhui Agricultural Sciences;2009-08
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【Secondary Citations】
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1 Cai Xiaohua Li Peibiao Zhao Zaofan (Department of Chemistry,Wuhan University,Wuhan);SIMULTANEOUS POLAROGRAPHIC DETERMINATION OF NITRATE AND NITRITE IN ENVIRONMENTAL WATER[J];Chinese Journal of Analytical Chemistry;1989-07
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