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62.965  Articles
1 of 6.297 pages  |  10  records  |  more records»
The scientific interest in natural food flavors is growing considering concerns of the population related to food safety. Aromatic plants and their concentrated forms (essential oils and phenolic extracts) are highly considered for health benefits, mainly... see more

Biodiesel is a mixture of fatty acid alkyl esters obtained by the reaction of triglycerides of vegetable or animal origin with alcohol in the presence of a catalyst. The fatty acid profile influences the overall properties of the biodiesel. The properties... see more

The identification and analysis of chemical warfare agents and their degradation products is one of important component for the implementation of the convention. Nowadays, the analytical method for determination chemical warfare agent and their degradatio... see more

Biodiesel is a mixture of fatty acid alkyl esters obtained by the reaction of triglycerides of vegetable or animal origin with alcohol in the presence of a catalyst. The fatty acid profile influences the overall properties of the biodiesel. The properties... see more

A low cost, environmental friendly and convenient method for parabens derivatization using Gas Chromatography-Mass Spectrometry (GC-MS) analysis is investigated. Derivatization is needed to enhance the thermal stability, detectability, and volatility of p... see more

Derivatization is the process by which a compound is chemically changed, that has properties more amenable to a particular analytical method. Some samples analyzed by Gas-chromatography and Mass-spectrometry (GC-MS) require derivatization in order to make... see more

The article represents new method for discovery of adulterated cognacs and brandies based on solidphase microextraction (SPME) in combination with gas chromatography – mass spectrometry (GC-MS). The work comprised optimization of SPME parameters (extracti... see more

Screening of toxic polycyclic aromatic hydrocarbons (PAHs) plays very important role allowing to determine the nature and sources of pollutants into the environment. The aim of this work was to develop a screening method of PAHs in air of Almaty by gas ch... see more

The aim of this work was to investigate existence presence and stability of must specific aroma compounds (monoterpenes C13-norisoprenoids, C6-alcohols, alcohols, esters and carbonyl compounds) and which can be used to establish differences among clone ca... see more

1 of 6.297 pages  |  10  records  |  more records»