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物质旋光度的一个显著特点是,随着温度变化而变化。以检定旋光仪用的标准石英管为例,其旋光值与温度存在如下关系:αt℃=α20℃〔1+0.000144(t-20)〕(1)目前,国产的自动旋光仪基本不具有温度检测功能,其给出的示值是物质在具体检测温度下的旋光值。相比之下,国外先进的自动旋光仪,以美国鲁道夫公司autopol系列为例,配备了内置温度传感器,可以测量样品温度和腔体温度,具有温度补偿功能。温度补偿的意义在于将实际温度下测量得到的旋光值,转
A distinctive feature of material optical rotation is that it varies with temperature. To test the polarimeter with a standard quartz tube, for example, the optical value and the temperature there is the following relationship: αt ℃ = α20 ℃ 〔1 +0.000144 (t-20)〕 (1) At present, the domestic automatic polarimeter basically does not have the temperature The detection function, which gives the indication value is the optical rotation of the substance at a specific detection temperature. In contrast, foreign advanced automatic polarimeter to the United States Rudolf company autopol series, for example, is equipped with a built-in temperature sensor that can measure the sample temperature and cavity temperature, with temperature compensation. The significance of temperature compensation lies in the actual temperature measurement of the optical rotation, turn