News and updates from the PTR-MS community


Posts Tagged ‘SRI-TOFMS’

The New Exclusive SRI-MS Reagent Ion: NH4+ and Its Benefits

A novel proprietary method of NH4+ production for IONICON customers

In PTR-TOF-MS traditionally H3O+ reagent ions produced from H2O vapor are used. NH4+ reagent ions have been mentioned in literature as being particularly beneficial because of higher sensitivity (less fragmentation) and higher selectivity (higher proton affinity). However, so far toxic and corrosive ammonia was needed for NH4+ production.

We developed a novel method of producing NH4+ solely from H2O vapor and N2 (gas cylinder or filtered air) in the established hollow cathode ion source, without the need of any ammonia, by adjusting the pressure and electric fields in the source (PCT application submitted). That is, the reagent ions can be rapidly switched. (more…)

SRI-TOFMS: Rapid Analysis of New Psychoactive Substances Blends

Identification of active ingredients in seconds without sample preparation


A popular NPS blend marketed as “synthacaine” on the internet.

Following up our recent research on explosives, chemical warfare agents, toxic industrial compounds and illicit drugs detection, we are currently focusing on the analysis of New Psychoactive Substances (NPS) utilizing state-of-the-art IONICON PTR-TOF 8000 instruments equipped with SRI capability. NPS, or “designer drugs”, “legal highs” and “research chemicals”, as they are often called, are chemicals with psychoactive effects either similar to illicit drugs or genuine on their own. However, the relevant legislation varies from country to country and NPS are in fact readily available over the Internet.