TY - BOOK AU - Babushok,V.I. TI - Chromatographic retention indices in identification of chemical compounds KW - CHEMICAL COMPOUND KW - DATA FILTERING KW - FALSE-POSITIVE IDENTIFICATION KW - GAS CHROMATOGRAPHY KW - HIT LIST KW - IDENTIFICATION KW - KOVÁTS INDEX KW - LINEAR INDEX KW - MASS SPECTROMETRY KW - RETENTION INDEX N2 - A brief overview of application of gas chromatographic retention indices (RIs)in the identification of chemical compounds is presented. Recent advances in the development of RI databases and the accumulation of experimental retention measurements in the form of computerized libraries are essential to increasing the efficiency of the identification process with the application of retention data. Currently available libraries of retention data provide the means for the more accurate identification of isomers, which have very similar mass spectra. The use of retention data allows filtering of MS hits, substantially decreasing the number of possible candidates. The application of the calibration function in combination with RI libraries simplifies the identification process. Multimode distributions of replicate measurements of RIs are often the result of isomer misidentification. Practical identification of isomers with close retention times relies strongly on elution-order information UR - https://drive.google.com/file/d/124Wsu9eevMG4S1ExDWLHDiSjMRQVVofZ/view?usp=drivesdk ER -