三元系溶液浓度对折射率的影响.pdfVIP

第32卷 第2期 南京林业大学学报(自然科学版) Vo1．32．No．2 2008年3月 Journal of Nanjing Forestry University(Natural Sciences Edition) Mar．。2008 ’ 三元系溶液浓度对折射率的影响 翟胜丞 ，王雅各 ，卢晓宁 (1．南京林业大学木材_Y-业学院，江苏 南京 210037；2．南京林业大学信息技术学院，江苏 南京 210037) 摘要：通过对不同浓度碳酸钠和葡萄糖混合溶液折射率的测定，验证当组分单一或组分结构相似时，溶液的折射 率和溶液的浓度呈线性关系。发现当两种单一溶液混合在一起，溶质粒子之间相互作用对折射率大小有一定的 影响。并对溶质离子之间的交互作用进行了进一步分析。通过二元方程分析，得到三元系溶液折射率与浓度的 函数关系rL( l， 2)=rL0+A l+曰 2+Cxl 2，并求得影响系数c的大小。 关键词：折射率；三元系溶液；负影响 中图分类号：0645 文献标识码：A 文章编号：1000—2006(2008)02—0148—03 Efiect 0f ternary mixture solution c0ncentrati0n on the refractive index — ZHAI Sheng—cheng ，WANG Ya—ge“ LU Xiao—ning ， (1．College ofWood Science and Technology Nanjing Forestry University，Nanjing 210037，China；2．College ofInformation Science and Technology Nanjing Forestry University，Nanjing 210037，China) Abstract：The refractive index of three solutions with different concentration was measured in this study．The solutions were consisted of pure sodium carbonate solution，glucose solution and mixed solution．The linear relationship between the concentration and refractive index was validated，when components were single or the structures were similar．It was found that when two different single- so|utions were mixed together，the interaction between them had a certain effect on the refractive index of the solutions．According to the statistical analysis，the equation n( l， 2)：no-I-A l+日 2+Cxl 2 with coefficient C were obtained． Key words：Refractive index；Ternary mixture solution；Negative effect 折射率是化合物重要的物理常数之一，可精确而方便地被测定