Akhayachatra Chinsriwongkul- R&D Manager at Silpakorn University
Akhayachatra Chinsriwongkul
- R&D Manager at Silpakorn University
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7
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Publications (7)
In many pharmacopoeias, the limit test used for determining the level of aluminum in citric acid labeled for use in the manufacture of dialysate, is based on solvent extraction using 8-hydroxyquinoline and measurement of fluorescence. However, the fluorescence intensity (F.I.) readout from the extract of citric acid samples has been found to be hig...
A smartphone-based technique for determining the titration equivalence point from a linear-segment curve was developed for the first time. In this method, a titrant in an increasing microliter-volume was added to a set of sample aliquots containing an indicator covering both sides of the equivalence point. The solutions were subsequently photograph...
Ion pair extraction coupled with digital image colorimetry has been developed as a promising platform for pharmaceutical analysis. The applicability of the approach was demonstrated through the assay of chlorpromazine hydrochloride tablets. In this method, the colorless, positively charged drug reacted with an anionic methyl orange dye in 1.5 mL mi...
A new, smartphone-based colourimetric method for the assay of D-penicillamine formulations relying on the Ellman's reaction was developed by performing the colourimetric reaction in a microplate. Subsequently, the plate was positioned on a white illuminating screen of an iPad placed in a dark box in order to capture a top-view image using an iPhone...
The aim of this study was to investigate the enhancement of all-trans retinoic acid (ATRA) loading in nano-lipid emulsions and stability by using oleic acid. The effect of formulation factors including initial ATRA concentration and the type of oil on the physicochemical properties, that is, percentage yield, percentage drug release, and photostabi...
The objective of this study was to formulate high loading with good stability of all-trans retinoic acid (ATRA) lipid emulsion. Lipid emulsions loaded with ATRA were composed of lecithin, medium chain triglyceride and poloxamer-188 or polysorbate-80. The formulation factors in a particular type and amount of oil, emulsifier, and co-emulsifier on th...
