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Table 3 Recovery study results in % recovered

From: Impurity profiling method development and validation of metformin hydrochloride and teneligliptin hydrobromide hydrate in their combination tablet dosage form by using RP-HPLC with UV/PDA detector

Analytes name Recovery at LOQ Recovery at 50% Recovery at 100% Recovery at 150%
Cyanoguanidine 81.7 99.3 102.1 101.0
Melamine 105.2 101.5 101.5 99.6
Metformin HCl 98.2 92.8 92.1 92.2
Teneligliptin 90.8 98.0 99.4 98.9
Teneligliptin Impurity A 97.5 98.4 102.6 97.9
Teneligliptin Impurity B 97.1 99.6 107.8 103.9