Sentence examples for preparation of matrix from inspiring English sources
Hydrophilic polymers are mainly used for preparation of matrix type controlled delivery systems.
The pure drug (IDM) and the solid admixture of drug and various excipients used in the preparation of matrix tablets were characterized by FT-IR spectroscopy to test their compatibility.
Given the complexity of the sample material containing inorganic bone, calcium carbonate, muscle blood, and skin, Jackson et al. resorted to in-house preparation of matrix calibration standards from water snake tail sample material [ 42].
FT-IR spectra of physical mixtures (1 : 1) of IDM and various excipients including E-RL 100, as well as the different LS systems and excipients used in preparation of matrix tablet, were performed to find out any possible drug-excipients interaction by KBr disc method using Perkin-Elmer FT-IR spectrophotometertometer.
A promising approach for quantification is the preparation of matrix-matched calibration standards, prepared from material with the same matrix as the sample [ 26– 29].
Pieces of the concretions used for the preparation of matrix-matched standards were first dried at 50°C to constant mass, then ground using an iron grinder (slightly modified steel grinder from Lun-Mek AB, Mariehamn, Åland), followed by sieving through a 62 μm plastic sieve.
The aim of our work was to determine the main factors which can influence the preparation of matrices and to choose the best parameters for the production of inert matrix granules with a high-shear granulator.
2-Phenylenediamine, 4-hydroxy coumarin, ethyl benzoyl acetate, phloroglucinol and the other reagents and solvents used in the preparation of matrices were of synthetic grades, obtained from Sigma-Aldrich (USA).
The mixed solutions were used for fortification of samples and for preparation of matrix-matched standards.
Two blank samples spiked with IS were included in each series for the preparation of matrix-matched recovery standards.
Even though the preparation of matrix-matched standards seems to be the most straightforward method, some problems still remain.
