Clift and Cook (1) have described a method for the determination of carbonyl compounds in blood as bisulfite-binding substances. Devised primarily for rapid determination of pyruvic acid, the procedure as described made possible the determination of acetoacetic acid to the extent of about 87 per cent, but acetonc could not be measured because of the instability of the addition product. Sufficie...

Substances such as chemical compounds and biological agents are invisible to human eyes, they are usually captured by sensing equipments with their spectral fingerprints. Although spectra of pure substances can be identified by visual inspection, the spectra of their mixtures take a variety of complicated forms. Given the knowledge of spectral references of the constituent substances, the task ...

The field of the melting point measurements high-purity organic substances today includes a large number measuring instruments used in medicine, biology, and production perfumery cosmetic products. purpose research is to identify features justify approaches development certified reference materials provided with metrological traceability SI base measurement units «temperature» (°C). objectives ...

The use of sea buckthorn fruits in medicine, cosmetology and as a source ingredients that improve the quality food has already been studied continues to be studied. One these can serve pectin substances buckthorn, isolated from it its pure form. Considering relevance this direction, main task work was study identification wild growing Azerbaijan. Using cavitation-membrane technology, samples po...

<p>This study aimed to explore the effect of pure oxygen aeration on generation soluble microbial products (SMP) when activated sludge was under toxic stress condition phenol. Two parallel sequencing batch reactors, one with air and other aeration, were used investigate relationships among effluent chemical demand (COD), N-acyl-homoserine lactones (AHLs), community, extracellular polymeri...

The article presents the results of a study aimed at deep and comprehensive factors that determine effectiveness biochemical oxidation process, dynamics chemical composition apple materials in process acetic acid fermentation. At first stage study, juices was conducted. pH, content solids, titrated acids, volatile extract, sugars, nitrogenous substances, phenolic substances carbohydrates were d...

Smuggling and abuse of psychoactive substances has experienced an expansion with accelerated technological development over the past 20 years. The growing tendencies to use means passenger air traffic, as well improvement road air-travel infrastructure connection parts world unimaginable in past, inspired traffickers these find new routes for transportation smuggling order achieve greatest poss...

Abstract In this article, the binding forms of two lignite samples are determined by thermal desorption using a high-temperature furnace. Each mercury compound, such as HgCl 2 , has specific strength whose decomposition requires certain energy. Hence, release from pure substances and was analyzed in The released is with Mercury Vapor Monitor. obtained characteristic temperature range peak were ...

The aim of this study was to assess selected properties coatings incorporating nanocellulose, with the potential being applied as a surface modification for cellulosic and lignocellulosic materials, particularly applications within biodegradable packaging. Cellulose nanocrystal (CNC) cellulose nanofibril (CNF) were produced on both sides pure samples in form filter paper Mayer bar. Selected org...