PMID- 37415425 OWN - NLM STAT- MEDLINE DCOM- 20231113 LR - 20231113 IS - 1945-239X (Electronic) IS - 0021-9665 (Linking) VI - 61 IP - 9 DP - 2023 Nov 5 TI - GC Analysis of Metformin, Ranitidine and Famotidine from Pharmaceuticals and Human Serum. PG - 807-813 LID - 10.1093/chromsci/bmad047 [doi] AB - A method has been designed based on gas chromatography with flame ionization detection (FID) for the separation and analyses of ranitidine, famotidine and metformin after pre-column derivatization with trifluoroacetylacetone and ethyl chloroformate. DB-1 (30 m x 0.32 mm id) column with film thickness 0.25 mum was used for the separation at an initial temperature of column was 100 degrees C for 2 min, and ramping at 20 degrees C/min up to 250 degrees C, with a hold time of 3 min. The rate of nitrogen flow was 2.5 mL/min and FID was used for detection. Complete separation was obtained between all the three drugs including excess of derivatization reagents. Linear calibration curves and detection limits were obtained in the ranges 0.1-30 mug/mL and 0.011-0.015 mug/mL. The procedure was repeatable in terms of peak heights/peak areas and retention time (n = 5) for derivatization, quantitation and separation with relative standard deviations (RSDs) within 2.0-3.0%. The approach was examined for the analyses of drug products and serum after the intake of the drugs by healthy volunteers, and recoveries were obtained within 95-98% with RSDs 2.4-3.1%. CI - (c) The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com. FAU - Zounr, Rizwan A AU - Zounr RA AD - Institute of Advanced Research Studies in Chemical Sciences, University of Sindh, Jamshoro 76080, Sindh, Pakistan. FAU - Khuhawar, Muhammad Y AU - Khuhawar MY AD - Institute of Advanced Research Studies in Chemical Sciences, University of Sindh, Jamshoro 76080, Sindh, Pakistan. FAU - Khuhawar, Taj M J AU - Khuhawar TMJ AD - Institute of Advanced Research Studies in Chemical Sciences, University of Sindh, Jamshoro 76080, Sindh, Pakistan. FAU - Lanjwani, Muhammad F AU - Lanjwani MF AUID- ORCID: 0000-0001-8794-7296 AD - Dr. M.A. Kazi Institute of Chemistry, University of Sindh, Jamshoro 76080, Sindh, Pakistan. FAU - Khuhawar, Muzamil Y AU - Khuhawar MY AD - Abbott Pharmaceutical Company in Korangi, Landhi Karachi 75106, Sindh, Pakistan. LA - eng PT - Journal Article PL - United States TA - J Chromatogr Sci JT - Journal of chromatographic science JID - 0173225 RN - 5QZO15J2Z8 (Famotidine) RN - 884KT10YB7 (Ranitidine) RN - 9100L32L2N (Metformin) RN - 0 (Pharmaceutical Preparations) SB - IM MH - Humans MH - *Famotidine MH - Ranitidine MH - *Metformin MH - Chromatography, Gas/methods MH - Pharmaceutical Preparations EDAT- 2023/07/07 06:42 MHDA- 2023/11/13 06:42 CRDT- 2023/07/07 02:34 PHST- 2022/02/20 00:00 [received] PHST- 2023/05/24 00:00 [revised] PHST- 2023/06/18 00:00 [accepted] PHST- 2023/11/13 06:42 [medline] PHST- 2023/07/07 06:42 [pubmed] PHST- 2023/07/07 02:34 [entrez] AID - 7220449 [pii] AID - 10.1093/chromsci/bmad047 [doi] PST - ppublish SO - J Chromatogr Sci. 2023 Nov 5;61(9):807-813. doi: 10.1093/chromsci/bmad047.