The present work reports on a sensitive and affordable non-instrumental method for the determination of bromine species in environmental waters by combination paper-based headspace sampling smartphone-based fluorescence detection. proposed approach takes advantage luminescence quenching probe (5-oxo-3,5-dihydro-2 H-thiazolo[3,2-a]pyridine-7-carboxylic acid, TPCA) derived from natural compounds,...

We report the first UV-vis spectroscopic study of bromine molecules confined in clathrate hydrate cages. Bromine in its natural hydrate occupies 51262 and 51263 lattice cavities. Bromine also can be encapsulated into the larger 51264 cages of a type II hydrate formed mainly from tetrahydrofuran or dichloromethane and water. The visible spectra of the enclathrated halogen molecule retain the spe...

In this work, the possibility of using reactions electrogenerated titrants with phenolic compounds was studied and a method for their coulometric determination in medicaments by galvanostatic coulometry developed. The research objects were: rutin, salicylic acid drugs containing such as «Ascorutin», «Salicylic Paste» Ointment» Russian manufacture. Electrogenerated halogens (Cl2, Br2 I2) hexacya...

In spite of their interest, viscosities of fluorocarbon compounds are scarce, and the available data are unreliable and of poor accuracy. In this work, viscosity measurements of linear, cyclic, aromatic, and R-substituted perfluorocarbons were carried out in the temperature range between (298.15 and 318.15) K using an Ubbelohde viscometer. The experimental results show that fluorinated compound...

Trihalomethanes (methane derivatives containing chlorine and/or bromine) have been determined in drinking waters in Upper Silesia the most industrious and most populated region in Poland. Halomethane content determination is based on Capillary Gas Chromatography (CGC) with Electron Capture Detector (ECD), while these compounds' isolation from waters by Solid-Phase Microextraction (SPME) is base...

Polycarbonate (PC) is an engineering thermoplastic that widely used in electrical and electronic equipment. This plastic often contains tetrabromobisphenol A (TBBA), the most common brominated flame retardant. Thermal degradation of PC-TBBA leads to generation numerous bromo-organic products pyrolytic oil, hindering its appropriate utilization, as well corrosive hydrogen bromide gas. The purpos...

AIMS To examine the possible consequences of high plasma concentrations of bromine on thyroid hormone. METHODS Bromine was measured by inductively coupled plasma mass spectrometry in the plasma of 799 patients consulting for thyroid disorders. Because the mean (SD) bromine concentration in the plasma of healthy subjects is 4 (1) mg/l, concentrations above 6 mg/l were regarded as outside the n...

ZONDEK AND BIER [1932; 1933] have pointed out that in certain cases of mental disorder (particularly of the manic-depressive type) the blood-bromine is usually considerably lower than normal. Unfortunately they used a method of bromine estimation which is subject to severe criticism and hence, although their conclusions may be correct, the work requires repetition with a sound method of bromine...

A series of N,N-dialkyl-2-phenylindol-3-ylglyoxylamides bearing the halogens iodine and bromine were synthesised and their binding affinity for the peripheral benzodiazepine binding sites (PBBS) in rat kidney mitochondrial membranes was evaluated using [(3)H]PK11195. Central benzodiazepine receptor (CBR) affinities were also evaluated in rat cortices using [(3)H]flumazenil to determine their se...