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表面活性剂浓度与表面张力-稀释倍数积分值的关系研究
引用本文:卢国满,刘红玉,曾光明,陈宏,高招.表面活性剂浓度与表面张力-稀释倍数积分值的关系研究[J].分析科学学报,2007,23(2):133-136.
作者姓名:卢国满  刘红玉  曾光明  陈宏  高招
作者单位:湖南大学环境科学与工程学院,长沙,410082
基金项目:国家863计划项目(No.2004AA649370),湖南省自然科学基金(No.05JJ30021)
摘    要:比较了三阶段Hermit插值和二次多项式的表面张力-稀释倍数拟合曲线及其求积方式,得出由三阶段Hermit插值所得n 1个离散数据点的拟合曲线,及对其前n个离散数据点所在区间上进行求积较佳。在三阶段Hermit插值拟合及求积方式下,分析了十二烷基硫酸钠、十六烷基三甲基溴化铵、茶皂素和去菌体前后含鼠李糖脂发酵液溶液浓度与表面张力-稀释倍数积分值之间的线性回归方程F值和r值,结果显示:F值大小受积分区间、(生物)表面活性剂种类、溶液浓度与临界胶团浓度的比值大小及溶液中杂质的影响,但F值均大于F0.005。

关 键 词:表面活性剂  表面张力  定量分析
文章编号:1006-6144(2007)02-0133-04
修稿时间:2006-02-14

Study of the Relationship between the Integral Value of Surface Tension-dilute Times and the Surfactant Concentration
LU Guo-man,LIU Hong-yu,ZENG Guang-ming,CHEN Hong,GAO Zhao.Study of the Relationship between the Integral Value of Surface Tension-dilute Times and the Surfactant Concentration[J].Journal of Analytical Science,2007,23(2):133-136.
Authors:LU Guo-man  LIU Hong-yu  ZENG Guang-ming  CHEN Hong  GAO Zhao
Abstract:Two multinomials with three stages Hermit interpolations fitting were comparatively studied in this paper.It was found that the simulated curve of multiple-surface tension value of the n 1 discretization data point and the sector integral value of the first n discretization data point by using three stages Hermit interpolation fitting method was appropriate.By using three stages Hermit interpolation fitting and integral methods,the F value and r value of the linear regressive equation between the surfactant concentration and the integral value of their surface tension value-dilution times were analyzed for sodium dodecyl sulfate,cetyl trimethyl ammonium bromide,tea saporin and rhamnolipid fermentation solution with or without bacterial body.The results showed that the F value was influenced by integrating range,(bio)surfactant type,the ratio of concentration and the critical micelle concentration,as well as the impurities in the solution,but the F value was always higher than F0.005.
Keywords:Surfactant  Surface tension  Quantitative analysis
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