In particular, tagging spectroscopy works by weakly attaching a reporter ‘tag’ — typically an atom of a noble gas or an inert molecule such as nitrogen (N 2) — to the molecule being examined.

More information: Yumin Li et al, Nitrogen dominates global atmospheric organic aerosol absorption, Science (2025). DOI: 10.1126/science.adr4473 ...

HKUST, SUSTech, and NCAMS researchers reveal nitrogen’s dominant role in global organic aerosol absorption Peer-Reviewed Publication Hong Kong University of Science and Technology ...

The possibility of enhanced nitrogen absorption was particularly intriguing to tea experts Wei Xin and Wenxin Tang at Fujian Agriculture and Forestry University in China because tea plants rely ...