nitrogen compounds

For a long time sources of nitrogen compounds were limited.

They are one of the more common groups of nitrogen compounds.

In the environment, nitrogen compounds can be poisonous to both fish and humans.

Nitrogen compounds are basic building blocks in animal biology as well.

They estimated that another 20 percent consisted of organic nitrogen compounds.

In the presence of sunlight, the nitrogen compounds produce ozone.

Nitrogen-fixing bacteria also add to the stores of nitrogen compounds.

She earned this honor for her work with asymmetric nitrogen compounds.

In return, the plant takes nitrogen compounds produced from ammonia by the bacteria.

Nitrogen compounds will have two different fates, according to their degradability.

Targeting nitrogen compounds, with heavy emphasis on power plants, which produce about half of the region's emissions.

High temperatures are more efficient for a rapid depletion of free nitrogen compounds.

Usually aromatic nitrogen compounds or amines are used for this purpose.

In the environmental context, reactive nitrogen compounds include the following classes:

Nitrogen compounds were well known by the Middle Ages.

Finally, most of the ammunition used in wars consists of nitrogen compounds.

The surface layers are often deficient in biologically-active nitrogen compounds.

Experts say reactive nitrogen compounds are for the most part of anthropogenic origin.

Nitrates and organic nitrogen compounds can be reduced to ammonia.

Many nitrogen compounds, such as hydrogen cyanide and explosives are also highly dangerous.

Activated carbon filters absorb nitrogen compounds and other toxins from the water.

There are differences in strains' abilities to metabolize various carbon and nitrogen compounds.

Acid deposition of sulfur and nitrogen compounds have recently been linked to soil damage.

Virtually all synthetic nitrogen compounds are derived from ammonia.

An analogous process for organic nitrogen compounds is deamination.