Refractive index detector (RI detector)



Abstract Refractive index detectors monitor the refractive index of column eluent (a bulk property), and are thus universal detectors. The detector monitors refractive index either by measuring the deflection of a light beam passing through an interface with the eluent or by measuring the amount of light reflected by the interface at angles near the critical angle. Refractive index detectors require careful control of temperature and are not very sensitive, operating in the mg/L range.

KeywordsDifferential refractive index, Refractive index, Bulk property, Universal, Temperature, Flow variation, Gradient, Refraction, Deflection method, Reflection method, Critical angle, Thermostat, Prism

LevelBasic


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