METHOD FOR PYRAZINAMIDE DETERMINING Russian patent published in 2010 - IPC G01N21/00 G01N33/15 

FIELD: medicine.

SUBSTANCE: method of pyrazinamide determining is based on the fact that 0.1 M solution of sodium hydroxide or 0.1 M solution of hydrochloric acid are used as a solvent for preparation test solutions. Potassium chromate or benzoic acid is used as a standard for comparison. Optical density of determined substance solution and the standard for comparison of potassium chromate or benzoic acid at a spectrophotometre at a wavelength of 268 nm are measured. The calculation of the results is carried out by the formula using the conversion factor.

EFFECT: reduction of analysis error, standardisation of analysis techniques.

3 ex