K. Kargosha et Ahm. Sarrafi, Spectrophotometric simultaneous determination of triamterene and hydrochlorothiazide in triamterene-H tablets by multivariate calibration methods, J PHARM B, 26(2), 2001, pp. 273-279
The multivariate calibration methods of partial least-square regression and
principal component regression were applied for the simultaneous spectroph
otometry determination of triamterene (TRM) and hydrochlorothiazide (HYD) i
n their mixtures. The parameters of the chemometric procedure were optimize
d, and the proposed methods were validated with synthetic samples and appli
ed to analyze these drugs in pharmaceutical products with good accuracy and
precision. The results were compared with those given by the British Pharm
acopoeia (BP) method. The square of the correlation coefficients (R-2) for
predicted TRM and HYD with the proposed method in a test sample were 0.9994
and 0.9992, respectively. The relative standard deviation for commercial t
ablets in the proposed method and BP standard method were 0.405 and 2.142%,
respectively. (C) 2001 Elsevier Science B.V. All rights reserved.