A selective spectrophotometric method was established for the determination of acetylcholine (Ach) and choline (Ch) by liquid—liquid and thermochromism of ion association complexes. This method is based on the formation of ion association compounds with tetrabromophenolphthalein ethyl ester (TB...

The determination of silver(I) is based on the formation of a chelate of silver(I) with 1,10-phenanthroline and its extraction into 1,2-dichloroethane as an ion par with tetrabromophenolphthalein ethyl ester. Quantitative extraction of the ion pair was achieved when the volume of a solution cont...

Sodium and potassium ions in waters are determined by flow-injection extraction-spectrophotometry. The ion-association complexes formed between the metal/crown ether cations and the tetrabromophenolphthalein ethyl ester anion (TBPE-) are extracted into chlorobenzene/benzene (1:3) and the absorba...

Capillary electrophoresis (CE) and quantum mechanical density functional theory (DFT) were applied to the investigation of the acid-base and electromigration properties of important compounds: newly synthesized derivatives of 5-azacytosine – analogs of efficient antiviral drug cidofovir. These ...

Nickel ions react with 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine in aqueous solution at pH 6.8 to form a red 1:3 complex cation which can be extracted at pH 6.3 into 1,2-dichloroethane with ethyl tetrabromophenolphthalein anion as an ion association compound having an absorption maximum at 610 n...

Stereoselective syntheses of both syn and anti S-acetyl-N-benzoyl-3-phenylisocysteine as coupling-ready reagents via the ring-opening reactions of trans- and cis-oxazoline-5-carboxylates with thiolacetic acid were demonstrated. In addition, we report upon ring-opening reactions of oxazoline-5-ca...

Iodine containing disinfection by-products (I-DBPs) and haloacetaldehydes (HALs) are emerging disinfection by-product (DBP) classes of concern. The former due to its increased potential toxicity and the latter because it was found to be the third most relevant DBP class in mass in a U.S. nationw...

Aryltriethyltin compounds, XC6H4SnEt3, reacted with mercuric acetate in tetrahydrofuran to give arylmercuric acetates and triethyltin acetate. Relative rates of aryl-tin cleavage in these compounds, obtained by competition reactions at 20°, are as follows: p-CH3O, 8.30; p-CH3, 1.76; p-Cl, 0.25;...

The activity of sodium xylenesulfonate in aqueous solution was determined by vapor pressure measurements, the results of which were transformed to mean activities. In addition, surface tension, conductivity, and partial molar volume were determined to obtain complementary information about poten...

Fricke xylenol gelatin with glycine (FXGGly) as gel dosimeter was investigated for in vivo dosimetry at extended source-to-surface distance (eSSD) and validated with optically stimulated luminescence dosimeters (OSLD). FXGGly dosimeter was calibrated with a low dose rate of 10 cGy/min at eSSD an...

Unidirectional (101) bulk size xylenol orange dye-doped potassium dihydrogen phosphate single crystals were grown by Vacuum Assisted Sankaranarayanan-Ramasamy method so as to improve the properties of the crystal. The objective is to study the impact of organic dyes on properties of the crystal ...

Loop-mediated isothermal amplification (LAMP) can amplify DNA specifically and sensitively. Under minimal buffering conditions, it produces hydrogen ions that lower the pH of the solution upon DNA amplification. This characteristic was applied to visually detect amplified DNA of Escherichia coli...

In an attempt to probe a potential template role of the large alkali-metal cation cesium in organization of biorelevant ligands, 5-sulfosalicylate, 3,5-dinitrosalicylate and 2,4-dinitrophenol complexes of cesium were prepared and structurally investigated. The structures of cesium 5-sulfosalicyl...

Semi-organic nonlinear optical crystal Calcium5-Sulfosalicylate (CA5SS) was grown by slow evaporation solution growth technique. The cell parameters and molecular structure of the grown crystal were studied by single crystal x-ray diffraction analysis. The presence of various functional groups o...

The crystal and molecular structure of sodium 5-sulfosalicylate dihydrate, Na[(H2Ssal)(H2O)2], (1) (H3Ssal=5-sulfosalicylic acid) has been determined through X-ray diffraction analysis. The 5-sulfosalicylate anion has lost the proton at the SO3H group but retains the usual intermolecular hydro...

The photodissociation dynamics of 2-furoyl chloride at 235 nm has been investigated, employing resonance-enhanced multiphoton ionization technique and time-of-flight mass spectrometry. Both the Cl fragments, Cl(2PJ=3/2, relative quantum yield 0.85 ± 0.11) and Cl∗(2PJ=1/2), have the recoil aniso...

HAlBEA and CoHAlBEA zeolite catalysts treated at 523 K or 873 K for 3 h in Ar, H2/Ar or air flows, respectively, were investigated in catalytic dehydrochlorination of 1,2-dichloroethane (DCE). The dehydrochlorination of DCE on these zeolite catalysts resulted in almost 100% selectivity to vinyl ...

This paper describes the conformational analysis of 1,2-dichloroethane adsorbed into three different metal-organic frameworks, MIL-53(Al), MIL-68(In), MIL-53-NH2(Al), by using FT-Raman spectroscopy in combination with powder XRD and TGA. For non-polar frameworks, the main guest-host interactions...

AgPd catalysts have been synthesized on SiO2, TiO2, and carbon supports using controlled surface reactions to form well defined active site structures. These catalysts were studied for hydrodechlorination of 1,2-dichloroethane to form ethane, ethylene, and chloroethane. The formation of bimetall...

Experimental liquid-liquid equilibrium (LLE) data for the cyclohexane + 1.2-dichloroethane + solvent ternary systems were determined at T = 313.15 K and p = 101.3 kPa, where the extracting agents are sulfolane, dimethyl sulfoxide, 1,4-butanediol and N,N-dimethylmethanamide. According to the expe...