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Table 4 Recovery study results in µg/mL

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 in µg/mL at LOQ Recovery in µg/mL at 50% Recovery in µg/mL at 100% Recovery in µg/mL at 150%
Added Recovered Added Recovered Added Recovered Added Recovered
CYN 0.051 0.042 2.545 2.527 5.090 5.197 7.635 7.711
Melamine 0.053 0.056 2.640 2.680 5.280 5.359 7.920 7.868
MTF HCl 0.058 0.0565 2.875 2.668 5.750 5.296 8.625 7.952
TNG 0.215 0.195 1.075 1.054 2.150 2.137 3.225 3.190
TNG Imp. A 0.221 0.216 1.105 1.087 2.210 2.268 3.315 3.245
TNG Imp. B 0.022 0.208 1.073 1.072 2.145 2.312 3.218 3.332