利用WGD-3型组合式多功能光栅光谱仪研究温度和高浓度溶液对吸光度的影响规律  

Effects of temperature and high concentration on the absorbance of solutions investigated by WGD-3 multi-function grating spectrometer

作　　者：郭献章[1] 李琛[2] 杨蕾[3] 齐培宏[2] 

机构地区：[1]东北大学秦皇岛分校实验教育中心,河北秦皇岛066004 [2]东北大学秦皇岛分校控制工程学院,河北秦皇岛066004 [3]东北大学秦皇岛分校资源与材料学院,河北秦皇岛066004

出　　处：《物理实验》2013年第9期27-31,共5页Physics Experimentation

基　　金：中央高校基本科研业务专项资金资助(No.N090401008)

摘　　要：利用WGD-3型组合式多功能光栅光谱仪测量不同浓度及不同温度的NaCl溶液、NaOH溶液和蔗糖溶液对波长为200～800nm的溴钨灯光的吸光度图谱，分析温度、混合溶液以及溶液浓度与溶液吸光度之间的关系，在稀浓度溶液吸光度的朗伯一比尔定律的基础上，进行对高浓度溶液、高浓度混合溶液的吸光度研究，总结温度和溶液浓度对高浓度溶液吸光度的影响规律，分析产生现象的原因．Using WGD-3 combined type multi-function grating spectrometer, the absorbance atlas of different concentrations of NaCI, NaOH and sucrose solutions were measured at different tempera- tures with bromine tungsten lamp as the light source. The effects of constituents, temperature and concentration on the absorbance were analyzed. On the basis of Beer-Lambert law for weak solution, the strong and mixed solution were researched, the regular pattern of absorbance for different temper- atures and concentrations was summarized, and the mechanism was analyzed.

关 键 词：WGD-3型组合式光栅光谱仪 温度 溶液浓度 吸光度 

分 类 号：O436.2[机械工程—光学工程]