Luminescent determination of residues of trazodon hydrochloride and melatonin after cleaning pharmaceutical equipment

Keywords: luminescence, trazodone hydrochloride, melatonin, cleaning of pharmaceutical equipment

Abstract

A prerequisite for ensuring the quality of medicines is their production in accordance with the rules of GMP (Good Manufacturing Practice for Medicinal Products), one of the most important requirements of which is equipment cleaning. In many cases, the same equipment is used in the production of various preparations. Therefore, to prevent contamination of each of the following drugs, the previous one, it is very important to carry out an effective equipment cleaning procedure with a mandatory assessment of its purity.

The purpose of this study was to develop simple, express, selective methods for luminescent determination of residual quantities of APIs of trazodone hydrochloride (TG) and melatonin (MT) in washes to control the completeness of their removal when cleaning process equipment.

The excitation and luminescence spectra were recorded using a Cary Eclipse "Varian" spectrofluorimeter (Australia) with a xenon lamp 150 W. Electronic absorption spectra were recorded on a UV-2401 PC spectrophotometer «Shimadzu» (Japan).

The electronic absorption spectra of TG and MT have absorption bands in the UV spectral region. It was established experimentally that the excitation spectra of TG and MT are similar to their absorption spectra (λex = 318 nm (TG) and λem = 274 nm (MT)). The effect on the luminescence intensity of TG and MT of methanol, ethanol, acetonitrile, dimethylformamide, dimethylsulfoxide, propanol (50 v/v) was studied. It is established that the maximum luminescence is observed in water.

The methods were validated according to the following parameters: specificity, linearity, accuracy, limit of quantitation. The degree of extraction of trazodone hydrochloride and melatonin from applicators and surfaces of pharmaceutical equipment is more than 90%. The developed methods can be recommended for determining the residual amounts of trazodone hydrochloride and melatonin while monitoring the quality of the cleaning of pharmaceutical equipment.

References

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Published
2019-09-10
How to Cite
Voitiuk, O. D., Yegorova, A. V., Scrypynets, Y. V., KashutskуyS. N., & Antonovich, V. P. (2019). Luminescent determination of residues of trazodon hydrochloride and melatonin after cleaning pharmaceutical equipment. Farmatsevtychnyi Zhurnal, (4), 73-81. https://doi.org/10.32352/0367-3057.4.19.08
Section
Production, quality control, standardization of medicines

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