Detection and analysis of volatile compounds in exhaled breath represents an attractive tool
for monitoring the metabolic status of a patient and disease diagnosis, since it is non …

An exceptional property of photo-acoustic spectroscopy is the zero-background in
wavelength modulation configuration while the signal varies linearly as a function of …

We demonstrated a 19-inches 6U-rack sensing system based on quartz-enhanced
photoacoustic spectroscopy for simultaneous detection of methane, nitrous oxide, and …

Losses of gas-phase compounds or delays on their transfer through tubing are important for
atmospheric measurements and also provide a method to characterize and quantify gas …

The effects of early acidification with sulfuric acid of animal slurry in concrete storage tanks
to pH 5 on methane and ammonia emissions have been investigated on two cattle and two …

Binary nucleation of sulfuric acid and water as well as ternary nucleation involving ammonia
are thought to be the dominant processes responsible for new particle formation (NPF) in the …

Ammonia (NH 3) in the atmosphere affects both the environment and human health. It is
therefore increasingly recognised by policy makers as an important air pollutant that needs …

Ammonia Commodity and Energy Carrier. About a century ago, one of the main challenges
chemists had to tackle was the conversion of atmospheric nitrogen to ammonia. This …

The traceable and accurate measurement of biogas impurities is essential in order to
robustly assess compliance with the specifications for biomethane being developed by …

Here we describe the design and performance of a new water cluster chemical ionization–
atmospheric pressure interface time-of-flight mass spectrometer (CI-APi-TOF). The …