Quantitative analyses of complex pharmaceutical mixtures by the Rietveld method

Powder Diffraction

Volumn 16, Issue 1, 2001, Pages 20-24

  Iyengar, Sampath S ^a,b   Phadnis, Neelima V ^a,c   Suryanarayanan, Raj ^a  

^a UNIVERSITY OF MINNESOTA   (United States)

^b Technology of Materials   (United States)

^c SmithKline Beecham Consumer Healthcare   (United States)

Author keywords

Carbamazepine; Dihydrate; Polymorph; Rietveld; X ray powder diffractometry

Indexed keywords

ANALYTE CONCENTRATION; CARBAMAZEPINE; DIHYDRATES; GOODNESS OF FIT; INTERNAL STANDARDS; LITHIUM FLUORIDE; PHARMACEUTICAL MIXTURES; X-RAY POWDER DIFFRACTOMETRY;

AMIDES; DIFFRACTION; POLYMORPHISM; RIETVELD METHOD;

MIXTURES;

EID: 0035529584     PISSN: 08857156     EISSN: 19457413     Source Type: Journal    
DOI: 10.1154/1.1332076     Document Type: Article

References (20)

1. Anwar, J. (1993). "Analysis of Time-resolved Powder Diffraction Data using a Pattern-decomposition Method with Restraints," J. Appl. Crystallogr. 26, 413-421.
2. Bish, D. L., and Post, J. E. (1993). "Quantitative Mineralogical Analysis Using the Rietveld Full-pattern Fitting Method," Am. Mineral. 78, 932-940.
3. Dugue, J., Ceolin, R., Rouland, J. C., and Lepage, F. (1991). "Polymorphism of Carbamazepine: Solid-state Studies on Carbamazepine Dihydrate," Pharm. Acta Helv. 66, 307-310.
4. Himes, V. L., Mighell, A. D., and De Camp, W. H. (1981). "Structure of Carbamazepine: 5H-dibenz[b,f]azepine-5-carboxamide," Acta Crystallogr., Sect. B: Struct. Crystallogr. Cryst. Chem. 37, 2242-2245.
5. Howard, S., and Preston, K. D. (1989). "Profile Fitting of Powder Diffraction Patterns," in Modern Powder Diffraction, edited by D. L. Bish and J. E. Post (The Mineralogical Society of America, Washington, DC) pp. 217-275.
6. Iyengar, S. S. (1994). "High Temperature X-ray Diffraction Analysis of Selected Ceramic Mixtures," Powder Diffr. 9, 38-43.
7. Iyengar, S. S., and Percec, S. (1994). "Rietveld Analysis of High Density Polyethylene," Powder Diffr. 9, 217-220.
8. Kaneniwa, N., Yamaguchi, T., Watari, N., and Otsuka, M. (1984). "Hygroscopicity of Carbamazepine Crystalline Powders," Yakugaku Zasshi 104, 184-190.
9. Klug, H. P., and Alexander, L. E. (1974). X-ray Diffraction Procedures For Polycrystalline And Amorphous Materials, 2nd ed. (Wiley, New York).
10. Lefebvre, C., Guyot-Hermann, A. M., Draguet-Brughmans, M., Bouche, R., and Guyot, J. C. (1986). "Polymorphic Transitions of Carbamazepine during Grinding and Compression," Drug Dev. Ind. Pharm. 12, 1913-1927.
11. Lowes, M. M., Caira, M. R., Lotter, A. P., and Van Der Watt, J. G. (1987). "Physicochemical Properties and X-ray Structural Studies of the Trigonal Polymorph of Carbamazepine," J. Pharm. Sci. 76, 744-752.
12. PDF-2 (1996). International Centre for Diffraction Data, Newtown Square, PA.
13. Rietveld, H. M. (1969). "A Profile Refinement Method for Nuclear and Magnetic Structures," J. Appl. Crystallogr. 2, 65-71.
14. Smith, D. K., Johnson, Jr., G. G., Scheible, A., and Wims, A. M. (1988). "Use of Full Diffraction Spectra, both Experimental and Calculated in Quantitative Powder Diffraction Analysis," Aust. J. Phys. 41, 311-321.
15. 2O) in a Mixture by Powder X-ray Diffractometry," Phys. Res. 6, 1017-1024.
16. Suryanarayanan, R. (1990). "Determination of the Relative Amounts of α-carbamazepine and β-carbamazepine in a Mixture by Powder X-ray Diffractometry," Powder Diffr. 5, 155-159.
17. Suryanarayanan, R. (1995). "Powder X-ray Diffractometry," in Physical Characterization of Pharmaceutical Solids, edited by H. G. Brittain (Marcel Dekker, New York), pp. 187-221.
18. The United States Pharmacopeia 24/The National Formulary 19 (1999), United States Pharmacopeial Convention (Rockville, MD).
19. Young, R. A., Sakthivel, A., Moss, T. S., and Paiva-Santos, C. O. (1995). "DBWS-9411-an Upgrade of the DBWS*.* Programs for Rietveld Refinement with PC and Main-frame Computers," J. Appl. Crystallogr. 28, 366-367.
20. Young, W. W. L., and Suryanarayanan, R. (1990). "Kinetics of Transition of Anhydrous Carbamazepine to Carbamazepine Dihydrate in Aqueous Suspensions," J. Pharm. Sci. 80, 496-500.