A SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF PENICILLIN

A spectrophotometric method for the determination of penicillin.

A physicochemical method has been developed by which 5 to 75 y (8 to 120 Oxford units) of penicillin per ml. may be determined within an error of f5 per cent. The procedure requires about 20 minutes for one complete analysis, but a large number of samples may be analyzed at one time. Since crystalline penicillins G, X, K, and F have nearly the same extinction per unit weight, a single measureme...

A simple spectrophotometric method for the determination of blood sugar by phenylhydrazine Hydrochlorlde

A Highly Sensitive Kinetic Spectrophotometric Method for the Determination of Ascorbic Acid in Pharmaceutical Samples

In this study, a new reaction system for quantitative determination of ascorbic acid was introduced. The developed method is based on inhibitory effect of ascorbic acid on the Orange G-bromate system. The change in absorbance was followed spectrophotometrically at 478 nm. The dependence of sensitivity on the reaction variables including reagents concentration, temperature and time was investiga...

A Highly Sensitive Kinetic Spectrophotometric Method for the Determination of Ascorbic Acid in Pharmaceutical Samples

In this study, a new reaction system for quantitative determination of ascorbic acid was introduced. The developed method is based on inhibitory effect of ascorbic acid on the Orange G-bromate system. The change in absorbance was followed spectrophotometrically at 478 nm. The dependence of sensitivity on the reaction variables including reagents concentration, temperature and time was investiga...

Kinetic Spectrophotometric Method for Determination of S032- Using Methylen blue

The present work reports a kinetic spectrophotometric method for the determination of traceamounts of sulphite that is based on inhibitory effect of sulphite on the oxidation of Methyleneblue (MB) in acidic media. The reaction is followed spectrophotometrically by monitoring thedecrease in absorbance of MB at 664 nm with a fixed time of 0.5-4.5 minutes. It was found thatsulphite exert a strong ...