Pesticide residues are one of the most important issues affecting food safety. In this review,
the general situation of pesticide residues in fruits and vegetables based on the background …

The separation and detection of isomers remains a challenge for many areas of mass
spectrometry. This article highlights laser photodissociation and ion mobility strategies that …

This roadmap article highlights recent advances, challenges and future prospects in studies
of the dynamics of molecules and clusters in the gas phase. It comprises nineteen …

We report a joint experimental–theoretical study of the never reported before structure and
infrared spectra of gas phase monohydrated nicotine (NIC) and nornicotine (NOR) and use …

The protonation site of molecules can be varied by their surrounding environment. Gas-
phase studies, including the popular techniques of infrared spectroscopy and ion mobility …

Through a combination of ion-mobility filtering and laser-equipped quadrupole ion–trap
mass spectrometry, the gas-phase reaction kinetics of two protonation isomers of the …

The low-lying electronic states of Irgacure 2959, a Norrish-type I photoinitiator, complexed
with a single metal cation are investigated in the gas phase by photodissociation action …

The switching of the protonation sites in hydrated nicotine, probed by experimental infrared
(IR) spectroscopy and theoretical ab initio calculations, is facilitated via a Grotthuss instead …

The influence of oriented electric fields on chemical reactivity and photochemistry is an area
of increasing interest. Within a molecule, different protonation sites offer the opportunity to …

Multifunctional compounds may form different prototropic isomers under different conditions,
which are known as protomers/deprotomers. In biological systems, these …