微机紫外光度法测定萘的回归检量线

An Investigation on Detedrmination of Regression Checking Quantity Line of Naphthalene by Microcomputer Ultraviolet Spectophotometry

利用微处理控制的紫外光度法测量了溶于环已烷中的萘在２１０～３４０ｎｍ波长范围内的吸收光谱；结果表明，其中两个主要吸收带对应于萘分子中两组π－π跃迁．在最大吸收波入λｍａｘ＝２６８ｎｍ处，根据打印输出数据，作出了萘的回归检量线．从而提供了一种高准确度定量分析的有用方法．

Absorptionspectraofnaphthalenedissolvedincyclohexaneweredeterminedbyultraviolet spectrophotometry of microprocessing control in the wavelength range of 210～340 nm.The results show that there are two absorption bands,of which the peaks are related to the two-groups π-π  transitions in naphthalene molecule.It follows from printout data where maximum absorption wavelength λ max =268 nm.Regression chechking quantity line of naphthalene is drawn.It provides a useful method of high acuracy quantitative analysis.