scholarly journals Development of a quick reverse phase liquid chromatographic method with photodiode-array detection for quantitative determination of chlorthalidone, metoprolol succinate and telmisartan in tablet formulation

2021 ◽  
pp. 1-9
Author(s):  
Avani Chokshi ◽  
Rohit Prajapati ◽  
Pritesh Desai ◽  
Mehul Patel
Keyword(s):  
Chromatographic Method ◽  
Reverse Phase ◽  
Photodiode Array Detection ◽  
Metoprolol Succinate ◽  
Liquid Chromatographic Method ◽  
Photodiode Array ◽  
Array Detection ◽  
Phase Liquid ◽  
Liquid Chromatographic

Liquid Chromatographic Method for Determination of Piperine in Piper nigrum (Black and White Pepper)

1988 ◽  
Vol 71 (1) ◽  
pp. 53-55 ◽  
Author(s):  
Kenneth M Weaver ◽  
Michael E Neale ◽  
Ann Laneville
Keyword(s):  
Chromatographic Method ◽  
Piper Nigrum ◽  
Chromatographic System ◽  
Reverse Phase ◽  
White Pepper ◽  
Black And White ◽  
Liquid Chromatographic Method ◽  
Phase Liquid ◽  
Liquid Chromatographic

Abstract A method was developed for the detection and quantitation of piperine in Piper nigrum. A reverse-phase liquid chromatographic system equipped with a C18 column with detection at 340 nm was used. A rapid 1 h acetone extraction followed by solvent dilution was used to avoid sample cleanup. The detection limit is 3 ng injected piperine, with 97.5-100.5% recovery of added piperine.

Liquid Chromatographic Determination of Carminic Acid in Yogurt

1989 ◽  
Vol 72 (2) ◽  
pp. 231-234 ◽  
Author(s):  
Mercedes Jalón ◽  
Majesús Peńa ◽  
Julián C Rivas
Keyword(s):  
Chromatographic Determination ◽  
Carminic Acid ◽  
Reverse Phase ◽  
Liquid Chromatographic Method ◽  
Relative Standard ◽  
Array Detection ◽  
Liquid Chromatographic Determination ◽  
Phase Liquid ◽  
Liquid Chromatographic

Abstract A reverse-phase liquid chromatographic method is described for the determination of carminic acid in yogurt. A C18 column is used with acetonitrile-1.19M formic acid (19 + 81) as mobile phase and diode array detection. Sample preparation includes deproteinization with papain and purification in a polyamide column. The relative standard deviation for repeated determinations of carminic acid in a commercial strawberry-flavored yogurt was 3.0%. Recoveries of carminic acid added to a natural-flavored yogurt ranged from 87.2 to 95.3% with a mean of 90.2%. The method permits measurement of amounts as low as 0.10 mg/kg.

Determination of Thiamphenicol in Bovine Plasma by Liquid Chromatography

1988 ◽  
Vol 71 (6) ◽  
pp. 1156-1157 ◽  
Author(s):  
Lawrence Felice ◽  
El Hassane Abdennebi ◽  
Muhammed Ashraf
Keyword(s):  
Liquid Chromatography ◽  
Chromatographic Method ◽  
Reverse Phase ◽  
Reverse Phase Liquid Chromatography ◽  
Bovine Plasma ◽  
Coefficients Of Variation ◽  
Liquid Chromatographic Method ◽  
Phase Liquid ◽  
Liquid Chromatographic

Abstract A liquid chromatographic method is described for the measurement of thiamphenicol in bovine plasma. The plasma (1 mL) is extracted with ethyl acetate. After the solvent is evaporated under a stream of nitrogen, the residue is reconstituted in methanol-water and analyzed by reverse-phase liquid chromatography with UV detection at 224 nm. The intra-day recoveries for bovine plasma spiked with 5 and 50 μg/mL of thiamphenicol were 102 and 101%, respectively, with coefficients of variation of 2.40 and 0.28%, respectively. The interday recoveries for the 5 and 50 μg/mL samples were 103 and 101%, respectively, with coefficients of variation of 3.40 and 0.94%, respectively. The sensitivity of the method allows quantitation to at least the 100 ng/mL level

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