This guide will explain ... spectrum reflects the behavior of the molecule quinine sulfate which provides the bitter taste in tonic water. For this measurement we used a UV LED (400 nm) to excite the ...

X-ray absorption spectroscopy. "The high-power laser is focused onto a multi-layered target, ablating the first layer ...

This spectroscopy approach uses a quartz tuning fork to detect gas absorption by electronically ... it limits acquisition speed," explained Angstenberger. "This is because when we change ...