Alexander Laskin Research Group


For our molecular characterization work, we use four mass spectrometers located on the fifth floor of the Brown lab building a linear ion trap (LTQ XL) and high-resolution Orbitrap (Q-Exactive HF-X) instruments from Thermo Scientific (A. Laskin’s lab) along with an Ion Mobility Q-TOF (quadrupole/time-of-flight) and an Inductively Coupled Plasma (ICP) instruments from Agilent (J. Laskin’s lab). The instruments are equipped with various ionization sources (ESI, APPI, APCI) along with custom-designed nano-DESI sources and coupled to three differently configured high performance liquid chromatography (HPLC) systems.

BRWN 5135 lab

Vanquish LC-MS / LTQ-MS instrument  Q-Exactive HF-X Orbitrap HRMS instrument

Vanquish LC-MS / LTQ-MS (Thermo) and Q-Exactive HF-X Orbitrap HRMS / nano-LC (Thermo)

BRWN 5125 lab

Ion Mobility Q-TOF HRMS instrument  ICP-MS instrument

Ion Mobility Q-TOF HRMS (Agilent) and ICP-MS (Agilent)


For our chemical imaging work, we use electron and X-ray microscopes hosted by user facilities listed below:


Electron microscopy:

Purdue University Discovery Park Birck Nanotechnology Center

The Birck Nanotechnology Center (BNC) is an interdisciplinary research unit that provides infrastructure for research groups at Purdue University.


The W.R. Wiley Environmental Molecular Sciences Laboratory (EMSL) at Pacific Northwest National Laboratory is a national user facility operated by Battelle PND for the U.S. Department of Energy. The EMSL hosts an array of the state-of-the-art instruments for particle analysis available to researchers through a peer-reviewed proposal process.


X-ray microscopy:

ALS: Advanced light source

The Advanced Light Source, at Lawrence Berkeley National Laboratory is a synchrotron user facility operated by University of California for the U.S. Department of Energy. The STXM instruments for particle analysis are integrated to the beamlines 11.0.2 and 5.3.2 available to researchers through a peer-reviewed proposal process.

Canadian light source

The Canadian Light Source operated by the University of Saskatchewan, and supported by local and central Canadian government agencies. The STXM instrument for particle analysis is integrated at the Soft X-Ray Spectromicroscopy (SM) 10ID-1 beamline available to researchers through a peer-reviewed proposal process.