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Research Article

Determination of Amorphous Content of Lactose Samples by Solution Calorimetry

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Pages 809-815 | Published online: 24 Sep 2004

References

  • Hancock B. C., Parks M. What is the true solubility advantage for amorphous pharmaceuticals?. Pharm. Res. 2000; 4: 397–404
  • Naini V., Byron P. R., Phillips E. M. Physicochemical stability of crystalline sugars and their spray‐dried forms: dependence upon relative humidity and suitability for use in powder inhalers. Drug Dev. Ind. Pharm. 1998; 24: 895–909, [PUBMED], [INFOTRIEVE], [CSA]
  • Pikal M. J., Lukes A. L., Lang J. E., Gaines K. Quantitative crystallinity determinations for β‐lactam antibiotics by solution calorimetry: correlations with stability. J. Pharm. Sci. 1978; 67: 767–772, [PUBMED], [INFOTRIEVE]
  • Sebhatu T., Angberg M., Ahlneck C. Assessment of the degree of disorder in crystalline solid by isothermal microcalorimetry. Int. J. Pharm. 1994; 104: 135–144, [CROSSREF]
  • Buckton G. Characterisation of small changes in the physical properties of powders of significance for dry powder inhaler formulations. Adv. Drug Deliv. Rev. 1997; 26: 17–27, [PUBMED], [INFOTRIEVE], [CROSSREF]
  • Gao D., Rytting J. H. Use of solution calorimetry to determine the extent of crystallinity of drugs and excipients. Int. J. Pharm. 1997; 151: 183–192, [CROSSREF]
  • Stubberud L., Forbes R. T. The use of gravimetry for the study of the effect of additives on the moisture‐induced recrystallisation of amorphous lactose. Int. J. Pharm. 1998; 163: 145–156, [CROSSREF]
  • Hogan S. E., Buckton G. The quantification of small degree of disorder in lactose using solution calorimetry. Int. J. Pharm. 2000; 207: 57–64, [PUBMED], [INFOTRIEVE], [CROSSREF]
  • Thompson K. C., Draper J. P., Kaufman M. J., Brenner G. S. Characterization of the crystallinity of drugs: B02669, a case study. Pharm. Res. 1994; 11: 1363–1365
  • Ward G. H., Schultz R. K. Process‐induced crystallinity changes in albuterol sulfate and its effect on powder physical stability. Pharm. Res. 1995; 5: 773–779, [CROSSREF]
  • Wu L. S., Gerard C., Hussain M. A. Thermal analysis and solution calorimetry studies on losartan polymorphs. Pharm. Res. 1993; 12: 1793–1795, [CROSSREF]
  • Suihko E., Ketolainen J., Poso A., Ahlgren M., Gynther J., Paronen P. Dehydration of theophylline monohydrate—a two step process. Int. J. Pharm. 1997; 158: 47–55, [CROSSREF]
  • Gu C. H., Grant D. J.W. Estimating the relative stability of polymorphs and hydrates from heat of solution and solubility data. J. Pharm. Sci. 2001; 90: 1277–1287, [PUBMED], [INFOTRIEVE], [CROSSREF]
  • Souillac P. O., Dave P., Rytting J. H. The use of solution calorimetry with micellar solvent systems for the detection of polymorphism. Int. J. Pharm. 2002; 231: 185–196, [PUBMED], [INFOTRIEVE], [CROSSREF]
  • Harjunen P., Lehto V. P., Välisaari J., Lankinen T., Paronen P., Järvinen K. Effects of ethanol to water ratio in feed solution on the crystallinity of spray‐dried lactose. Drug Dev. Ind. Pharm. 2002; 28(8)949–956, [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]
  • Angberg M., Nyström C., Castensson S. Evaluation of heat‐conduction microcalorimetry in pharmaceutical stability studies. V. A new approach for continuous measurements in abundant water vapour. Int. J. Pharm. 1992; 81: 153–167, [CROSSREF]
  • Angberg M., Nyström C., Castensson S. Evaluation of heat‐conduction microcalorimetry in pharmaceutical stability studies. VI. Continuous monitoring of the interaction of water vapour with powders and powder mixtures at various relative humidities. Int. J. Pharm. 1992; 83: 11–23, [CROSSREF]
  • Yu L. Amorphous pharmaceutical solids: preparation, characterization and stabilization. Adv. Drug Deliv. Rev. 2001; 48: 27–42, [PUBMED], [INFOTRIEVE], [CSA], [CROSSREF]

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