HIGH PERFORMANCE LIQUID CHROMATOGRAPHY DETECTORS – A REVIEW
Journal Title: International Research Journal of Pharmacy (IRJP) - Year 2011, Vol 2, Issue 5
Abstract
HPLC is the most versatile and widely used elution chromatography. The technique is used to resolve and determine species in a variety of organic, inorganic, biological, ionic and polymeric materials. Detector is the heart of an instrument and efficiency of system is dependent upon detecting techniques. Many types of HPLC detectors exist, each of which has some valuable performance feature such as refractive index detector, ultraviolet detector, fluorescent detector, electrochemical detector, electric conductivity detector, liquid light scattering detector, evaporative light scattering detector. Due to strong requirement for improvements in sensitivity, selectivity and other performance characteristics of the detector recent developments in conventional techniques and some other new technologies have been adopted such as laser light scattering detector, charged aerosol detector, nano quantity aerosol detector, chiral detector and pulsed amperometric detector. These detectors provide accurate concentration analysis, excellent sensitivity, wide dynamic range, consistent response and broad applicability of the drug components. Working of these detectors involve different principles such as optical techniques, aerosol based techniques, refractive methods, light scattering principle, amperometric and fluorescence. The present review enlightens both conventional and advanced techniques and compares their capabilities of analyzing drug components and need for new techniques for better and wide range of applicability.
Authors and Affiliations
Kaushal Ramni, Navneet Kaur , Ashutosh Upadhyay , O. P Suri , Arti Thakkar
Keywords
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