期刊文献+

Spectrophotometric Error Due to Uncertainty in Reading the Signal

Spectrophotometric Error Due to Uncertainty in Reading the Signal
下载PDF
导出
摘要 Based upon the standard deviations for the intercept and the slope of a linear regression line, as well as by differentiating both Beer's law and a linear relationship between transmittance and concentration at high transmission, it is proved that the relative spectrophotometric error of a measurement becomes greater as the sample concentration only decreases. Further, it is demonstrated that the present knowledge with regard to the error in absorption spectrophotometry is necessary to be reexamined. The total scale of transmittance can literally be used for measurements, unfolding workable dynamic ranges about two orders of magnitude lower than usually and thus absorption spectrophotometry can efficiently compete with other methods of analysis with respect to detection limits.
出处 《Journal of Chemistry and Chemical Engineering》 2012年第7期585-590,共6页 化学与化工(英文版)
关键词 Spectrophotometric error transmittance uncertainty sensitive spectrophotometry transmittance noise. 吸收分光光度法 不确定性 信号 读取 线性关系 样品浓度 透射率 标准偏差
  • 相关文献

参考文献8

  • 1Skoog, A. D.; Holler, F. J.; Nieman, T. A. Principles of Instrumental Analysis; 5th Ed., Thomson Learning Academic Resource Center, United States, 1998; pp 99-342.
  • 2Hiskey, C. F. Principles of Precision Colorimetry. Anal. Chem. 1949, 21, 1440-1446.
  • 3Ctlin, A. V.; Vijdeluc, C. I.; Fiamegos, Y. C.; Stalikas, C. D.; Kovala-Demertzi, D.; Demertzis, M. A. In Sensitive Spectrophotometric Determination of Copper with di-2-pyridyl Ketone, Proceedings of the 9th Eurasia Conference on Chemical Sciences (EuAs C2S-9), Antalya, Turkey, 2006, Ohtaki, H.; ener, B. Eds.; 2006,B-OP-4, p 26.
  • 4Demertzis, M. A.; Ctlin, A. V.; Vijdeluc, C. I.; Fiamegos, Y. C.; Stalikas, C. D.; Kovala-Demertzi, D. In Errors in Spectrophotometry, Proceedings of the 5th International Conference on Instrumental Methods of Analysis-Modem Trends and Applications, Rio-Patras, Greece, Christopoulos T. K., Ioannou, P.C. Eds., 2007, OR 274.
  • 5Demertzis, M. A.; Palios, A. I.; C,lin, A. V.; Vijdelue, C. I.; Chrysafis, G. A. In Spectrophotometric Error Due to Uncertainty in Reading the Signal, Proceedings of the12th Eurasia Conference on Chemical Sciences (EuAs C2S-12), Corfu, Greece, Kitagawa, S., Hadjiliadis, N., Eds., 2012, S10-OP9.
  • 6Miller, J. C.; Miller, J. N. Statistics for Analytical Chemistry; John Wiley and Sons, New York, 1988; pp 109-112.
  • 7Demertzis, M. A. Low Detection Limit Spectrophotometry. Anal Chim. Acta 2004, 505, 73-76.
  • 8Farrington, D. Mathematical Preparation for Physical Chemistry," McGraw-Hill Book Company, Inc., New York, 1956; pp 70-91.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部