- Mass Spectrometry Techniques and Applications
- Thermal Expansion and Ionic Conductivity
- Advanced Thermoelectric Materials and Devices
- Analytical Chemistry and Chromatography
- Thermal properties of materials
- Analytical chemistry methods development
- Optical properties and cooling technologies in crystalline materials
- Surface Chemistry and Catalysis
- Natural product bioactivities and synthesis
- Cannabis and Cannabinoid Research
- Pesticide Residue Analysis and Safety
- Graphene research and applications
- Forensic Toxicology and Drug Analysis
- Carbon Nanotubes in Composites
- Phytoestrogen effects and research
- Food Quality and Safety Studies
University of Waterloo
2019-2023
Regional Municipality of Waterloo
2019-2021
With legalization and decriminalization of cannabis in many parts the world comes need for rapid separation quantitation psychoactive ingredients. Here, we demonstrate use differential mobility spectrometry (DMS) mass analysis five cannabinoid molecules: isomer set Δ9-tetrahydrocannabinol (THC), cannabidiol (CBD), cannabichromine (CBC), (-)-tetrahydrocannabinolic acid (THCA) cannabidiolic (CBDA) pair. Analytes were investigated under a variety gas-phase environments to identify optimal...
The experimental determination of ion-neutral collision cross sections (CCSs) is generally confined to ion mobility spectrometry (IMS) technologies that operate under the so-called low-field limit or those enable empirical calibration strategies (e.g., traveling wave IMS; TWIMS). Correlation trajectories CCS in other non-linear IMS techniques employ dynamic electric fields, such as differential (DMS), has remained a challenge since its inception. Here, we describe how an ion's can be...
This thallium telluride is bestowed with an ultralow thermal conductivity in comparison to state-of-the-art thermoelectrics.
Two ion populations of protonated Rivaroxaban, [C19H18ClN3O5S + H]+, are separated under pure N2 conditions using differential mobility spectrometry prior to characterization in a hybrid triple quadrupole linear trap mass spectrometer. These attributed bare Rivaroxaban and proton-bound Rivaroxaban–ammonia complex, which dissociates mass-selecting the parent ion. Ultraviolet photodissociation (UVPD) collision-induced dissociation (CID) studies indicate that both comprised computed global...
We illustrate using a carboxylic acid anchoring component in the Alignment Relay Technique on silica and alumina surfaces. present theoretical calculations interactions between iptycenes' various pockets carbon nanotubes.
Abstract We investigated the Ruddlesden‐Popper series CaO(CaMnO 3 ) m with = 1, 2, 3, ∞, to study impact of varying amounts CaO layers on their thermoelectric properties. Previous studies showed that highly dense samples are difficult obtain due refractory nature these materials. In this study, we managed pellets during a classical hot‐pressing step, if and only were subjected extended ball‐milling prior pressing, resulting in crystallite sizes 30–35 nm after hot‐pressing. The sample largest...