High-pressure Liquid Chromatographic Determination of Salicylic Acid in Aspirin Powder and Pharmaceutical Dosage Forms

1980 ◽  
Vol 69 (1) ◽  
pp. 113-115 ◽  
Author(s):  
V.Das Gupta
Keyword(s):  
High Pressure ◽  
Salicylic Acid ◽  
Chromatographic Determination ◽  
Dosage Forms ◽  
High Pressure Liquid Chromatographic ◽  
Pharmaceutical Dosage Forms ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

High Pressure Liquid Chromatographic Determination of Monensin in Feed Premixes

1983 ◽  
Vol 66 (2) ◽  
pp. 284-286
Author(s):  
Thomas D Macy ◽  
Andrew Loh
Keyword(s):  
High Pressure ◽  
Coefficient Of Variation ◽  
Chromatographic Determination ◽  
Hplc Method ◽  
High Pressure Liquid Chromatographic ◽  
Average Recovery ◽  
Bioassay Method ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract A high pressure liquid chromatographic (HPLC) method has been developed to determine monensin in feed premixes. The method is simple and rapid. Monensin is extracted with methanol-water and determined in the extracting solution by HPLC. Average recovery for monensin from a 13.2% premix sample was 103% (coefficient of variation (CV), 2.6%) by HPLC and compares with the value of 100% (CV, 3.4%) obtained by the turbidimetric bioassay method.

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