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摩尔吸光系数与什么有关
更新时间： 2020-10-23 00:00:00  

摩尔吸光系数与吸光物质的浓度和吸收光程长度有关。摩尔吸光系数是指物质对某波长的光的吸收能力的量度，即一定波长时，溶液的浓度为1mol/L，光程为1cm时的吸光度值，用ε或EM表示。ε越大，表明该溶液吸收光的能力越强，相应的分光度法测定的灵敏度就越高。以一定波长的光通过时，所引起的吸光度值A。根据比尔定理：吸光度A与吸光物质的浓度c和吸收池光程长b的乘积成正比。

关键词： 系数 什么 有关

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