電導(dǎo)_率_法測(cè)定醋酸解離常數(shù)的數(shù)據(jù)處理方法研究_Excel的

1、 第4期 劉煥新等 : 甘氨酸修飾玻碳電極的離子通道行為 47 4 Zhang L , Lin X Q. Covalent modification of glassy carbon electrodes with glycine for voltammetric separation of dopamine and ascorbic acid. Fresen J Anal Chem ,2001 ,370 :956 - 962. 5 方程 . 博士學(xué)位論文 . 武漢 : 武漢大學(xué) ,2001. 32. 6 劉建允 . 博士學(xué)位論文 . 長(zhǎng)春 : 中科院長(zhǎng)春應(yīng)用化學(xué)研究所 ,2001. 59.

2、hexacynoferrate ( . J Electroanal Chem , 7 Wu P , Cai C Q. Solvent effects on the solid 2state electrochemistry of samarium ( 2005 ,576 :49 - 56. The Ion Channel Behavior of G lycine Modified G lassy Carbon Electrode Liu Huanxin Shao Huibo 1 1 ,2 Li Yuhong 1 (11Department of Chemistry , Capital Norm

3、al University , Beijing 100037 ; 21Department of Chemistry , School of Science , Beijing Institute of Technology , Beijing 100081 Abstract Glycine was covalently modified on a glassy carbon electrode ( GCE by electrochemical oxidation which made stable monolayer. In order to study the ion channel be

4、havior of the modified electrode , electron transfer was investigated with Fe 2+ ( CN 3 redox probe in different concentration of protons and Ca , respectively. The result showed that :the ion channel 6 was opened in the presence of Ca 2+ or the solution was in low pH ; in the absence of Ca 2+ or th

5、e solution was in high pH the channel was switched. The mechanism of forming an ion channel was investigated. 3Key words : Glycine modified electrode , cyclic votammetry , ion channel , Fe ( CN 6 ,女 ,山東泰安人 , 首都師范大學(xué)化學(xué)系碩士研究生 , 主要從事電化學(xué)研究 . E2mail : monriver521 作者簡(jiǎn)介 劉煥新 (1980 sohu. com. ( 上接第 43 頁(yè) A Stu

6、dy of Experimental Data Treatment Methods in Conductivity Determination of the Dissociation Constant of Acetic Acid an Application of Excel Ling Xiaohong (Department of Chemistry , Capital Normal University , Beijing 100037 Abstract In order to make complicated and tedious calculation , analysis and

7、 graphic expression of experimental data simple and fast , to reduce data treatment error , to strengthen statistical meaning and accuracy of result , and also to further synthesis of experiment for training studentsability to treat data and to graph with computer , an application of Excel to the ex

8、perimental data treatment and expression in conductivity determination of the dissociation constant of acetic acid has m - 1 m linear regression analysis-graphics and lg2m been studied. Three methods of arithmetic mean , c m (m - m - lg c linear regression analysis2graphics advanced by this paper have been utilized to treat two groups of experimental data with results being compared and analyzed. Key words : Excel , arithmetic mean , standard deviation , l