Abstract
Surface-assisted laser desorption ionization mass spectrometry (SALDI-MS) is an emerging technique used for the detection of small molecules (<700Da) such as illicit drugs. In recent times, this technique has been employed for the detection of illicit drugs in various body fluids including saliva. Three common SALDI techniques, desorption ionization on porous silicon (DIOS), nanostructure-initiator mass spectrometry (NIMS) and nanostructured laser desorption ionization (NALDI™) are compared for the detection of four drug classes, amphetamines, benzodiazepines, opiates and tropane alkaloids. We focus in our comparison on structural and chemical characteristics, as well as analytical performance and longevity.
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