Chemistry

Green method detects blood pressure drug with improved sensitivity and safety

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Analytical chemistrySpectrofluorimetryDerivatization

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Researchers developed a new spectrofluorimetric analytical method for detecting guanfacine hydrochloride, a medication used to treat ADHD and hypertension, using NBD-Cl (7-chloro-4-nitrobenzoxadiazole) as a derivatizing agent. The method demonstrates high sensitivity for measuring the drug in pharmaceutical formulations and biological samples while being environmentally friendly compared to conventional detection techniques. The NBD-Cl reagent reacts with guanfacine hydrochloride to produce a fluorescent derivative that can be measured at specific wavelengths.


This method provides pharmaceutical companies and clinical laboratories with a more accurate and environmentally sustainable way to measure guanfacine concentrations in medications and patient samples. The improved sensitivity could enable better quality control in drug manufacturing and more precise therapeutic drug monitoring in patients.


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Source: A sensitive and green spectrofluorimetric method for determination of guanfacine hydrochloride based on NBD-Cl derivatization