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一、概述示差屈折计(折光率检测器)是液相色谱仪通用检测器,它能连续、定量地检测两种液流间折射率的差值。它与高速液相色谱联机,通过柱流出物光的折射率变化来检测试样组分的存在及其含量。折光率检测仪现有两种类型。一种是反射型,另一种是偏转型,这两种检测器都可测到10~(-7)RI变化值。RI检测器(折光率检测器)与紫外检测器相比,RI检测器的灵敏度至少比后者低一个数量级,但它的通用性比紫外检
First, an overview Differential refractive index (refractive index detector) is a common liquid chromatography detector, which can continuously and quantitatively detect the difference between the refractive index of the two streams. It is coupled with high performance liquid chromatography to detect the presence and content of sample components by the change in refractive index of the column effluent light. There are two types of refractive index detectors available. One is reflective and the other is deflectable. Both detectors detect changes in RI of 10 -7. RI Detector (Refractive Index Detector) The RI detector has at least an order of magnitude lower sensitivity than the UV detector, but its versatility is better than that of the UV detector