scientists realized that nitrous oxide was the main source of ozone-depleting nitrogen oxide radicals in the stratosphere. In contrast to chemicals containing chlorine and bromine, nitrogen oxides ...

EPR detects and quantifies reactive oxygen and nitrogen species (ROS/RNS), including nitric oxide. EPR spectroscopy is an invaluable tool within the field ... This accessory is perfectly suited for ...

However, a new view is evolving with the accumulating evidence that nitrate and nitrite metabolism occurs in blood and tissues to form NO and other bioactive nitrogen oxides, representing an ...

Ezra Wood leads a research group investigating many aspects of atmospheric chemistry relevant to air pollution and global warming. The overall research goals are to quantify the emissions of primary ...

The researchers found that infusing platinum in catalytic converters with a highly porous material called Y zeolites greatly enhances the reactions between nitrogen oxides and hydrogen ...

Researchers have introduced an electron paramagnetic resonance (EPR) sensor that fits on a small chip to detect free radicals ...

The theory: combustion in power plants and all types of engines throws hundreds of tons of nitrogen oxides into the air ... into what chemists call “free radicals,” i.e., fragments of ...

Removing hazardous nitrogen oxides more efficiently Ferri concludes, "If you know exactly where the chemical reaction takes ...

This proud farming nation is under immense pressure to make radical changes to cut harmful ... it can be harmful to nature. Nitrogen oxides (nitrogen and oxygen, NOx) are mainly produced when ...

In a lightning bolt, nitrogen in the air combines with oxygen to generate nitrogen oxides such as NO and NO2. They can then combine with water vapour to create nitric and nitrous acids (HNO3 and ...

Nitrogen makes up about 78% of the Earth's atmosphere. Liquid nitrogen is very cold, so it is often used to freeze food. The boiling point of nitrogen is −196 °C, so liquid nitrogen is very ...