Orbitrap Fusion Mass Spectrometer

The Orbitrap Fusion mass spectrometer was purchased in early 2017 through a grant from the NSF Major Research Instrumentation program.

Complex mixtures of all types are well-addressed by this technology - from biological / proteomic analyses to environmental, petroleum and biofuels applications.

The Orbitrap Fusion combines a quadrupole, an Orbitrap and a linear ion trap mass spectrometer ("tribrid") to enable acquisition of both high-resolution (Orbitrap) as well as rapid, low-resolution analyses (quadrupole ion trap) in a parallel-in-time fashion (i.e. multiplexed operation). In particular, the linear ion trap and the quadrupole can be used to isolate and fragment ions of interest by three available and complimentary fragmentation mechanisms and produce numerous tandem mass spectra while the slower, high-resolution / accurate mass measurement is taking place in the Orbitrap. The availability of multiple fragmentation techniques at any stage of MSN, with fragment ion detection in either the ion trap or Orbitrap mass analyzer, offers a high level of versatility.

Orbitrap Fusion Mass Spectrometer
Orbitrap Fusion - Schematic

Guidelines for Becoming an Orbitrap Fusion User

Becoming a user of the NMSU Chemical Analysis and Instrumentation Lab's Orbitrap Fusion Mass Spectrometer

The proposal management plan specifies several ways that the Orbitrap Fusion can be used, which are available to all NMSU faculty/staff uniformly and are prioritized in the following order:

(1) Funded projects of the CAIL director that include budget allocations for Orbitrap Fusion support. These projects can include training and instrument operation by project faculty and students.

(2) Funded user projects that include budget allocations for Orbitrap Fusion support. These projects can include training and instrument operation by project faculty and students.

(3) User projects that provide Orbitrap Fusion support through fee-for-service. These analyses are performed by CAIL staff. A cost estimate can be supplied in advance by the lab director, as needed.

(4) Non-funded projects where a potential user and the CAIL director seek pre-data in pursuit of extramural funding. These analyses are performed by CAIL staff. If the pre-data become part of a successful proposal, the resulting project would function as described in either item 1 or 2, above.

For scenarios 3 and 4, above, project students and faculty are welcome to be present during the analysis for learning/instruction purposes. Those samples will be run at the earliest convenient time for CAIL staff.

A project request form (download below) can be used to provide project information. The CAIL director will use this input to evaluate the project suitability for the resource, course of action/scheduling and project budgeting considerations, and will provide an approved project proposal form in return.

Liquid Chromatography-Triple Quadrupole Mass Spectrometer

In September 2021, a new Shimadzu LC-MS 8050 was installed at the CAIL Facility. It features a UPLC system, ultra-fast scanning, and ultra-fast switching between positive and negative ion modes to facilitative both quantitative and qualitative liquid sample analyses.


Micro UPLC Liquid Chromatography

CAIL acquired a Waters Acquity M-Class UPLC to serve water research and biomedical applications projects. The system is configured for nano-to-microliter per minute flow rates and utilizes 75-300 micron internal diameter columns, and achieves excellent sensitivity, analysis speed and chromatographic resolution.


Nano-Flow Liquid Chromatography

A Thermo Ultimate 3000 RS nano-flow liquid chromatography system was purchased in early 2017 to be paired with either our FT-ICR Mass Spectrometer or our Orbitrap Fusion Mass Spectrometer. This system provides fast, high resolution separations with fast gradient response and excellent flow rate stability. The nanoLC system is coupled directly to the mass spectrometers (no flow splitting) through the NanoMate electrospray ionization robot.


Gas Chromatography / Mass Spectrometry

Our GC / MS system is an Agilent 6890N including a 7683B autosampler. This instrument is available for trace analysis of targeted volatile and semi-volatile compounds. We maintain both NIST and AMDIS searchable databases.

Front View of the Gas Chromatography Mass Spectrometer

Inductively Coupled Plasma / Mass Spectrometry

Our ICP / MS system is an Octopole Reaction System (ORS) Agilent 7500ce with a CETAC XS-520 autosampler. The Octopole Reaction cell permits minimization of spectral interference allowing detection of a broad range of elements. The system provides quantitation of trace metals to parts-per-trillion levels. A microwave sample digestion system is also available. This ICP / MS system is regularly used for environmental, geological and biological samples. More difficult applications include metallurgical and petrochemical analysis.

Side View of the Inductively Coupled Plasma Mass Spectrometer with a CETAC Autosampler