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Application of neural networks for response surface modeling in HPLC optimization
(Elsevier Science BV, Amsterdam, 1998)
The usefulness of artificial neural networks for response surface modeling in HPLC optimization is compared with multiple regression methods. The results show that neural networks offer promising possibilities in HPLC ...
High-performance liquid chromatographic assay of 8-hydroxyquinoline sulfate and its stability in immunobiological preparations
(Elsevier Science BV, Amsterdam, 1998)
Because of the ability of g-hydroxyquinoline sulfate (8-HQS) to irreversibly bind metals from rubber stoppers, the stability of 8-HQS in tuberculin solutions was investigated, For the determination of 8-HQS, a simple and ...
Identification of protonic species and their dynamic equilibrium in magnesium and calcium salts of 12-tungstophosphoric acid
(Elsevier Science BV, Amsterdam, 1999)
This contribution presents the results of the investigation of Mg2+ and Ca2+ 12-tungstophosphoric acid (WPA) salts as superionic proton conductors. We have identified protonic species as charge carriers in several hydration ...
Determination of some insect repellents in cosmetic products by high-performance thin-layer chromatography
(Elsevier Science BV, Amsterdam, 1999)
A simple and reliable thin-layer chromatographic method for the determination of N,N-diethyl-m-toluamide (DEET) and dimethyl phthalate (DMP) in raw material and cosmetic products was developed and validated. A benzene-diethyl ...
Quantitative analysis of sulpiride and impurities of 2-aminomethyl-1-ethylpyrrolidine and methyl-5-sulphamoyl-2-methoxybenzoate in pharmaceuticals by high-performance thin-layer chromatography and scanning densitometry
(AOAC International, Gaithersburg, 1999)
A simple and reliable thin-layer chromatographic method for determining sulpiride and impurities of 2-aminomethyl-1-ethylpyrrolidine and methyl-5-sulphamoyl-2-methoxybenzoate was developed and validated. A methylene ...