A novel technique of immobilizing indicator dyes by electrostatic adsorption and covalent bonding to fabricate optical sensors was developed. 3-Amino-9-ethylcarbazole (AEC) was attached to the outmost surface of quartz glass slide via aminosilanizing the slide, crosslinking chitosan, adsorbing A...
A novel technique of covalent immobilization of indicator dyes in the preparation of fluorescence sensors is developed. Silver nanoparticles are used as bridges and carriers for anchoring indicator dyes. 3-amino-9-ethylcarbazole (AEC) was employed as an example of indicator dyes with terminal am...
Berthelot's reaction (formation of indophenol-blue) is the basis of the colorimetry used by the great majority of participants, and their individual methods are examined in detail. Basic principles are discussed and procedures are compared. Various points of the reaction mechanism are examined...
A suitable sequential injection analysis (SIA) analyser to monitor water quality in terms of the ammonia content in water and industrial effluent streams was developed. The system is fully computerised and is able to monitor ammonia in samples at a frequency of ca. 16 samples per hour with a re...
To investigate the importance of NAD(P)H:quinone oxidoreductase 1 (or DT-diaphorase; NQO1) in the bioactivation of antitumor quinones, we established a series of stably transfected cell lines derived from BE human colon adenocarcinoma cells. BE cells have no NQO1 activity due to a genetic polymo...
Two new spectrophotometric methods are described for the simultaneous analysis of pseudoephedrine sulfate-dexbrompheniramine maleate (DBP) and pseudoephedrine sulfate-loratadine combinations. In the first, derivative spectrophotometry, dA/dλ values were read at zero-crossing points. In the seco...
The present work illustrates potentialities of on-line combined isotachophoresis-capillary zone electrophoresis (ITP-CZE) separation techniques coupled with on-capillary diode array detector (DAD) for enantiomeric purity testing of drugs in pharmaceuticals. The general advantages of the proposed...
A sensitive, precise, and cost-effective UV-spectrophotometric method is described for the determination of pheniramine maleate (PAM) in bulk drug and tablets. The method is based on the measurement of absorbance of a PAM solution in 0.1 N HCl at 264 nm. As per the International Conference on Ha...
Two simple, selective and sensitive spectrophotometric methods are described for the determination of pheniramine maleate (PAM) in pure and dosage forms. The method is based on the reaction of PAM with hypochlorite in the presence of Kolthoff buffer (phosphate-borate) of pH 7.0 to form the chlor...
Ischemia/reperfusion (I/R) injury of tissues is a common problem that cardiovascular surgeons are faced with. Suppression of inflammation, which plays an important role in the pathogenesis of I/R injury, may reduce this damage. The aim of this study is to investigate the protective effects of me...
Benztropine (BZ) is a potent muscarinic receptor antagonist that has been used for the treatment of Parkinson disease. However, the oral administration of BZ is often limited because of its many dose-related side effects. In this study, BZ was formulated into drug-in adhesive (DIA) patches in an...
The influence of pH and various lipophilic and hydrophilic vehicles on the epidermal permeation of benztropine (BZ) free base and its mesylate salt were studied in vitro using the hairless mouse (HLM) and human cadaver (HC) skin membranes. The pH-partition behavior of BZ base (pK a =10) ...
The crystal structure of benztropine mesylate has been determined. It is orthorhombic, Pbca, with a = 12. 885(8)Å, b = 32.012(9)Å, and c = 10.027(3) Å. It exhibits similar packing to that seen in the previously reported crystal structure of benztropine mesylate monhydrate. X-ray powder diffracti...
The adsorption of FePc on the Ag(110) substrate has been investigated by ultraviolet photoelectron spectroscopy (UPS). The emission features corresponding to the adsorbed organic molecules are located at 1.03, 4.04, 6.53 and 9.22eV below the Fermi level. The features shift in binding energy with...
We investigated the adsorption states of iron(II) phthalocyanine (FePc) molecules on Ag(111) by using high‐resolution electron energy loss spectroscopy (HREELS). The HREELS spectra were taken as a function of the coverage of FePc. At 1 monolayer, vibrational modes assigned as A2u and A1g repres...
Pure bentonite clay has been modified through acid thermal treatment (ATTB) and by pillaring with titania and vanadia (Ti-PILB and V-PILB). Iron (II) phthalocyanine complex (FePc) was immobilized in 0.5wt% loading on the modified bentonite supports. Structural characteristics were investigated t...
Modelowanie i prognozowanie procesów korozji atmosferycznej metali to jedne z działań wynikających z zastosowań monitoringu korozyjnego. W celu prognozowania wielkości zmian korozyjnych, zarówno metali jak i innych materiałów konstrukcyjnych, zastosowano równania wyrażające zależność ubytk...
An amendment of the Polish Occupational Diseases Certification Act of 2002 has essentially influenced on the procedures of diagnosis and certification.The aim of the study was to assess the diagnostics of occupational vocal organ disorders in the first and second instance. The clinical diagnosis...
W referacie przedstawiono wyniki badań stali szybkotnących po wybranych obróbkach cieplnych i cieplno-chemicznych. Badania przeprowadzono na próbkach ze stali szybkotnącej HS6-5-2 (dawniej SW7M) i stali szybkotnącej proszkowej HS6-5-3-8 (ASP2030). W badaniach zastosowano technologie azotowani...
The equilibrium extraction behavior of Sm(III), Eu(III) and Dy(III) from aqueous NaClO 4 solutions in the pH range of 4-9 at 0.1 M ionic strength into organic solutions of 1-nitroso-2-naphthol (HA) and 1,10-phenanthroline (Phen) has been studied. The equilibrium concentrations of Eu wer...
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