Quantitative analysis of the active table ingredient by power x-

Details Quantitative analysis of the active table ingredient by power x- Quantitative analysis of the active table ingredient by power x-

1990-02-05

1991-02-05

Howell, Janice A.

X-ray or gamma ray systems or devices

Specific application

Diffraction, reflection, or scattering analysis

250304, G01N 23207, G01N 3100

Patent

active

049911910

ABSTRACT:
A method for quantitatively analyzing solid mixtures of a crystalline ingredient and an excipient component in commercial pharmaceutical tablets by x-ray powder diffractometry using the intact tablet as is, without special sample preparation.
The method comprises the steps of:

REFERENCES:
patent: 4592082 (1986-05-01), Pawloski
Jenkins, Ron, QXD-A System for Quantitative Powder Diffractometry, 1973, pp. 24-31, Norelco Reporter/vol. 20, No. 2.
Alexander and Klug, Basic Aspects of X-Ray Absorption, in Anal. Chem. 20: pp. 886-889 (1948).
H. P. Klug and L. E. Alexander, X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials, 2nd ed., Wiley, N.Y. (1974), 531-562.
J. W. Shell, X-Ray and Crystallographic Applications in Pharmaceutical Research II, in J. Pharm. Sci, 52: pp. 24-29 (1963).
R. Suryanarayanan, Pharm. Res 6: pp. 1017-1024 (1989).
C. Lefebvre, A. M. Guyot-Hermann, M. Draguet-Brughmans et al., Drug Dev. Ind. Pharm 12: pp. 1913-1927 (1986).

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