Impurities found in active pharmaceutical ingredients (APIs) and pharmaceutical products
are of ever‐increasing interest. According to several regulatory agencies, purity and impurity …

The present research developed and validated a new stability‐indicating technique for the
stereo‐selectively enantiomers of the antiviral nucleoside analog Valacyclovir hydrochloride …

The R, S‐enantiomer impurity and diastereomer impurities (S, S‐isomer and R, R‐isomer) of
the solifenacin (S, R‐enantiomer) were effectively separated and quantified simultaneously …

A voltammetric sensor was developed based on a glassy carbon electrode with
aluminophosphate zeolite finely dispersed on its surface, modified with a polyelectrolyte …

Разработан вольтамперометрический сенсор на основе стеклоуглеродного электрода
с осажденным на его поверхности мелкодисперсным алюмофосфатным цеолитом …

The significance and necessity of separating enantiomers in food, pharmaceuticals,
pesticides, and other samples remains constant and unrelenting. The successful chiral …

Naproxen (NX) drug exists in two R-and S-enantiomers, requiring enantioseparation for
effective pharmacological effects. Herein, a new S-NX enantioselective poly (acrylonitrile-co …

Choline chloride-thiourea deep eutectic solvent (DES) was prepared and used to microwave-
assisted synthesis of nitrogen, sulfur, and chloride doped carbon dots (N, S, Cl-CDs). In this …

The drug fenoprofen (FN) is available in two forms, R‐and S‐enantiomers, which need to be
separated for optimal therapeutic use. A novel poly (acrylonitrile‐co‐divinylbenzene)(PNB) …

A simple and sensitive method, based on chemiluminescence of a reaction system
containing europium (III) ions, for determination of naproxen in mixed solvents of water and …