Proton transfer reaction mass spectrometry (PTR-MS) and selected ion flow tube mass spectrometry (SIFT-MS) are decades-old field-deployable chemical ionization technologies with portable features.

Proton transfer reaction mass spectrometry (PTR-MS) and selected ion flow tube mass spectrometry (SIFT-MS) are well-established, field-deployable chemical ionization techniques known for their ...

The PTR-TOF 6000 analyzes trace VOCs using high-performance PTR-TOF-MS (proton transfer reaction time of flight mass spectrometry). It also incorporates X2 technology, enhancing both sensitivity and ...

Researchers have recently extracted the proton mass radius from the experimental data. A research group at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) presented an ...

New Haven, Conn. — The movement of protons through electrically charged water is one of the most fundamental processes in chemistry. It is evident in everything from eyesight to energy storage to ...

Researchers can now check off another mystery from a long list of kind-of-confirmed principles in science, this time in fundamental chemistry. Reading time 2 minutes For over two centuries, scientists ...

Researchers 3D printed a miniature ionizer, a key component of a mass spectrometer. Their device could someday enable an affordable, in-home mass spectrometer for health monitoring. Mass spectrometry, ...