Journal ArticleDOI
Quantitative analysis of sulfathiazole polymorphs in ternary mixtures by attenuated total reflectance infrared, near-infrared and Raman spectroscopy.
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TLDR
NIR spectroscopy exhibits the smallest analytical error, higher accuracy and robustness and when these advantages are combined with the greater convenience of NIR's "in glass bottle" sampling method both ATR-IR and Raman methods appear less attractive.About:
This article is published in Journal of Pharmaceutical and Biomedical Analysis.The article was published on 2010-11-02. It has received 69 citations till now. The article focuses on the topics: Raman spectroscopy.read more
Citations
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Journal ArticleDOI
Application of the near-infrared spectroscopy in the pharmaceutical technology
TL;DR: Monitoring, by NIR, of many manufacturing processes, such as granulation, mixing or drying, in order to determine the end-point of these processes, and determinations of the quality and quantity of pharmaceutical compounds are included.
Journal ArticleDOI
Polymorphism and solvatomorphism 2010.
TL;DR: Papers and patents that deal with polymorphism and solvatomorphism and systems where the crystal structures of the substance are defined by different unit cells but where these unit cells differ in their elemental composition through the inclusion of one or molecules of solvent are summarized in an annual review.
Journal ArticleDOI
Effects of thermo-chemical pre-treatment of grass silage on methane production by anaerobic digestion.
TL;DR: Dried grass silage was pre-treated at different NaOH loading rates and temperatures to determine effects on its bio-degradability in terms of the hydrolysis yield and degradation of ligno-cellulosic materials for biogas production.
Journal ArticleDOI
Critical review of near-infrared spectroscopic methods validations in pharmaceutical applications.
C. De Bleye,Pierre-François Chavez,Jérôme Mantanus,Roland Djang’eing’a Marini,Ph. Hubert,E. Rozet,Eric Ziemons +6 more
TL;DR: This review gives a comprehensive and critical overview of the methodologies applied to assess the validity of quantitative NIRS methods used in pharmaceutical applications.
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A theoretical and spectroscopic study of co-amorphous naproxen and indomethacin.
Korbinian Löbmann,Riikka Laitinen,Holger Grohganz,Clare J. Strachan,Thomas Rades,Thomas Rades,Keith C. Gordon +6 more
TL;DR: In this study, the co-amorphous drug mixture containing naproxen (NAP) and indomethacin (IND) was investigated using infrared spectroscopy (IR) and quantum mechanical calculations and it could be shown that both drugs exist as homodimers in their respective individual amorphous form.
References
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Journal ArticleDOI
General atomic and molecular electronic structure system
Michael W. Schmidt,Kim K. Baldridge,Jerry A. Boatz,Steven T. Elbert,Mark S. Gordon,Jan H. Jensen,Shiro Koseki,Nikita Matsunaga,Kiet A. Nguyen,Shujun Su,Theresa L. Windus,Michel Dupuis,John A. Montgomery +12 more
TL;DR: A description of the ab initio quantum chemistry package GAMESS, which can be treated with wave functions ranging from the simplest closed‐shell case up to a general MCSCF case, permitting calculations at the necessary level of sophistication.
Book
Polymorphism in Pharmaceutical Solids
TL;DR: Brittain et al. as mentioned in this paper applied the phase rule to the characterisation of polymorphic and solvatomorphic systems, and proposed a computational method to predict polymorphism.
Journal ArticleDOI
Orthogonal signal correction of near-infrared spectra
TL;DR: It is shown how a variant of PLS can be used to achieve a signal correction that is as close to orthogonal as possible to a given Y-vector or Y-matrix and is applied to four different data sets of multivariate calibration.
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Crystal structures of drugs: advances in determination, prediction and engineering
TL;DR: The different crystal forms of pharmaceuticals, the challenges that they present and recent advances in crystal structure determination are reviewed, and computational approaches for predicting crystal properties are discussed.
Journal ArticleDOI
Analytical techniques for quantification of amorphous/crystalline phases in pharmaceutical solids.
TL;DR: The present review provides a compilation of the theoretical and practical aspects of existing techniques, thereby facilitating the selection of an appropriate technique to accomplish various objectives of quantification of amorphous systems.