Sentence examples for alkyl from inspiring English sources

Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.

Nitrosamines, which are found in products such as beer and pickled foods, can cause DNA alkylation (the addition of an alkyl group).

For direct reversal of alkylation events, a DNA methyltransferase or DNA glycosylase detects and removes the alkyl group.

To avoid the problem of multiple alkylation, methods have been devised for "blocking" substitution so that only one alkyl group is introduced.

Though nerve agents hang around long enough to be formidable weapons, they degrade in the presence of moisture into chemicals called alkyl methylphosphonic acids.

The researchers' crucial discovery, though, was that if the soil in which it is growing contains a nerve agent (they used VX) the plant will absorb it, metabolise it into alkyl methylphosphonic acids, and store those acids in its tissue.

The researchers then monitored chemical levels in the wines for 18 months.They report in the Journal of Agricultural and Food Chemistry that at the end of the study the levels of the different types of alkyl-methoxypyrazines, known as IBMP, IPMP and SBMP, had fallen by 45 %, 32 and 26% and 26%ively in the wines storespectivelyns.

They then contribute to the formation of these undesirable chemicals in some North American and French wines.The wine industry has tried various ways to remove alkyl-methoxypyrazines, but none has been particularly successful.

A new study, however, reveals that although the criticism of wine cartons for allowing oxidation is valid, they have the advantage of soaking up chemicals that can ruin the flavour in other ways.High levels of chemicals called alkyl-methoxypyrazines can make wines taste as though the fruit from which they were made was under-ripe or low-quality.

He suggests that the alkyl-methoxypyrazine molecules may be sticking to the aluminium and thus being segregated from the wine.

They could be ideal for storing wines that are inclined to be high in alkyl-methoxypyrazines but will be drunk relatively soon after purchase, before oxidation can become a significant problem.