Q Exactive™ HF Hybrid Quadrupole-Orbitrap™ Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Q Exactive™ HF Hybrid Quadrupole-Orbitrap™  Mass Spectrometer
Thermo Scientific™

Q Exactive™ HF Hybrid Quadrupole-Orbitrap™ Mass Spectrometer

Identify, quantify, and confirm more proteins, peptides, and small molecules faster with the Thermo Scientific™ Q Exactive™ HF mass spectrometer.
Have Questions?
Catalog NumberScan RatesResolutionMass Range
IQLAAEGAAPFALGMBFZUp to 18 HzUp to 240,000 (FWHM) at m/z 20050 to 6000 m/z (up to 8000 m/z with BioPharma Option)
Catalog number IQLAAEGAAPFALGMBFZ
Price (USD)
-
Scan Rates:
Up to 18 Hz
Resolution:
Up to 240,000 (FWHM) at m/z 200
Mass Range:
50 to 6000 m/z (up to 8000 m/z with BioPharma Option)
Identify and quantify more proteins, peptides, lipids, glycans and small molecules accurately and in less time with the Thermo Scientific™ Q Exactive™ HF hybrid quadrupole-Orbitrap mass spectrometer. The Q Exactive HF system combines a state-of-the-art segmented quadrupole for high-performance precursor ion selection with a high-resolution, accurate-mass (HR/AM) ultra-high-field Orbitrap mass analyzer to deliver a superior combination of scan speed, resolving power, mass accuracy, spectral quality and sensitivity. Identify, quantify and confirm in a single analysis with a single instrument with the Q Exactive HF mass spectrometer.
Advanced quadrupole technology for greater sensitivity and quantitative dynamic range

The Q Exactive HF instrument uses a segmented quadrupole mass filter to achieve more precise precursor isolation for better discrimination between analytes and coeluting interferences. An advanced active beam guide increases ion transmission. The result is superior sensitivity and greater quantitative dynamic range, especially when dealing with complex mixtures.

Multiple, sophisticated modes of data acquisition/quantitation ensure optimum quantitative results

The Q Exactive HF mass spectrometer supports multiple approaches to quantitation including selected ion monitoring (SIM), parallel-reaction monitoring (PRM), and data-independent acquisition (DIA). Users can select the technique best matched to their sample and information requirements.

  • SIM - selected ion monitoring provides simple method setup with maximum selectivity and sensitivity. It is ideal for quantifying small numbers of compound in samples of moderate complexity.
  • PRM - parallel-reaction monitoring provides high selectivity and high sensitivity with confident targeted confirmation. Quantitation is carried out post-acquisition for greater throughput. High-resolution, accurate-mass Orbitrap spectra ensure confident confirmation through library matching.
  • DIA - data independent acquisition enables large-scale targeted proteomics studies with qualitative confirmation. Its simple and universal acquisition set-up does not require detailed sample knowledge prior to data acquisition. DIA increases reproducibility and comprehensiveness with a complete record of quantitative data. It facilitates retrospective analysis of additional analytes.
Ultra-high-field Orbitrap mass analyzer increases resolving power and scan speed for greater productivity and higher confidence in less time

The Q Exactive HF system features a new ultra-high-field Orbitrap mass analyzer that, while physically smaller, provides higher resolution and faster scan speeds. Combined with the inherent superior quality of Orbitrap spectra, the Q Exactive HF system provides more-confident identification and quantitation in less time

  • Scan speed up to 18 Hz result in up to 50% more IDs from shorter gradients
  • Resolving power of up to 240,000 (FWHM) at m/z 200 ensures maximum ID confidence
  • Spectral quality significantly superior to Q-TOF mass spectrometers yields better protein coverage and quantitation results
  • Polarity switching (one full cycle in <1 sec at a resolution setting of 60,000) enables analysis of more, different compounds in a single analysis
Optional intact protein mode for enhanced analysis of intact proteins and protein complexes

When research requires analysis of intact proteins or protein complexes, the Q Exactive HF system can be equipped with an intact protein mode option (available on new instruments only). This option enhances analysis of intact proteins through sophisticated ion beam control and easy pressure adjustment.

Specifications, terms, and pricing are subject to change. Not all products are available in all countries. Please consult your local sales representative for details.
Specifications
Dynamic Range>5000:1
Mass AccuracyInternal: <1 ppm RMS, External: <3 ppm RMS
Polarity SwitchingOne Full Cycle in < 1 Sec (One Full Positive Mode Scan and One Full Negative Mode Scan (at a Resolution Setting of 60,000)
Scan RatesUp to 18 Hz
SensitivityMS/MS: 100 fg Reserpine on Column S/N 150:1, SIM: 50 fg Reserpine on Column S/N 150:1
Mass Range50 to 6000 m/z (up to 8000 m/z with BioPharma Option)
ResolutionUp to 240,000 (FWHM) at m/z 200
TypeQuadrupole-Orbitrap LC-MS
Unit SizeEach

Frequently asked questions (FAQs)

Why is the turbomolecular pump not operating when using Orbitrap Exactive or Q Exactive mass spectrometry instruments?

A turbomolecular pump may be switched off because of one of the following reasons:

- Turbomolecular pump is blocked
- Failure of fans in turbomolecular pump
Each of the above reasons might lead to an overheating of the pump. When overheated, a turbomolecular pump switches off automatically to prevent its destruction. This overheating protection prevents the outbreak of a fire and minimizes the risk of destructing the pump.

If the Exactive Series mass spectrometer does not work as expected, use the Tune software for error diagnosis:
- The instrument status window displays real-time status information for the instrument components. All parameters are arranged in a tree view. In addition to showing numerical values of parameters (for example, pump speeds or component temperatures), the instrument status window uses icons to indicate the statuses of system components.
- The messages window displays real-time information about the statuses of the instrument, the control service, or other programs. It might display additional information.

In case of an overheated turbomolecular pump, shut down the mass spectrometer as described on page 6-8 of the manual (https://assets.thermofisher.com/TFS-Assets/CMD/manuals/man-bre0012255-exactive-series-manbre0012255-en.pdf). To prevent permanent damage to components of the Exactive Series mass spectrometer, Thermo Fisher Scientific recommends that you call a Thermo Fisher Scientific field service engineer.

Find additional tips, troubleshooting help, and resources within our Mass Spectrometry Support Center.

Why is the temperature of UHV chamber higher than expected when using Orbitrap Exactive or Q Exactive mass spectrometry instruments?

The UHV chamber heating control may have failed. During general operation of the mass spectrometer, the temperature of the UHV chamber is not regulated. Only during a system bakeout, electric power is supplied to the heating elements of the UHV chamber. The heating always operates at maximum power. Thus, failure of the heating control does not lead to a dangerous overheating of the mass spectrometer. If the Exactive Series mass spectrometer does not work as expected, use the Tune software for error diagnosis:

- The messages window displays real-time information about the statuses of the instrument, the control service, or other programs. If the heating was terminated, the window displays a corresponding error message.

In case of a failure of the UHV chamber heating control, shut down the mass spectrometer as described on page 6-8 of the manual (https://assets.thermofisher.com/TFS-Assets/CMD/manuals/man-bre0012255-exactive-series-manbre0012255-en.pdf). To prevent permanent damage to components of the Exactive Series mass spectrometer, Thermo Fisher Scientific recommends that you call a Thermo Fisher Scientific field service engineer.

Find additional tips, troubleshooting help, and resources within our Mass Spectrometry Support Center.

When using Orbitrap Exactive or Q Exactive mass spectrometry instruments, why does the tune software show bad vacuum?

Here are possible causes and solutions:
-System was vented because of a main power failure: A main power failure has the same consequence as switching off with the main power circuit breaker switch. If the power is available again, the system is started up automatically: the pumps are switched on and the vacuum is created. If the system has been vented during the mains failure, it is necessary to bake out the system to obtain the operating vacuum. See “Baking Out the System” on page 8-12 of the manual. If the log file of the data system shows a reboot of the system and the pressure reading in the Tune software shows a bad vacuum, this indicates that the system was vented. In case of frequent but short power failures, we recommend that you install an uninterruptible power supply (UPS). If main power failures occur frequently while the system is not attended (for example, in the night), we recommend that you install a power fail detector. - Vacuum leak: Refer to pages 7-5 and 8-12 in the Operator's Manual (https://assets.thermofisher.com/TFS-Assets/CMD/manuals/man-bre0012255-exactive-series-manbre0012255-en.pdf).

Find additional tips, troubleshooting help, and resources within our Mass Spectrometry Support Center.

Why does the metal needle insert in the heated ESI probe frequently clog when using Orbitrap Exactive or Q Exactive mass spectrometry instruments?

Clogging of the H-ESI spray needle is generally caused by the presence of non-volatile components in the injected samples. If the non-volatile components of the samples are not removed during sample preparation, they will be injected onto the column where they will gradually bleed off over time into the detector. They may also be directly introduced by the use of non-volatile buffers in the mobile phase. Non volatile buffers should be avoided in LC-MS analysis because the spray needle will clog frequently and in addition the MS optics will quickly become contaminated.

Clogging issues may be worsened when using a divert valve or bypass valve. This is because when the valve switches to waste the LC flow to the needle is stopped, causing the residual liquid in the hot needle to quickly evaporate. This in turn causes the non-volatile components to deposit on the inner wall of the tubing which will eventually clog it.

When using a divert or bypass valve, the issue may be fully resolved by adding another HPLC pump to supply make-up flow through the needle when the column eluent is bypassed. The second pump is connected to the divert valve or bypass valve so that when the eluent is diverted to waste, clean solvent flows through the needle to help keep it clean. Alternatively, sample preparation procedures should be modified to reduce the amount of non-volatile components in each sample injection.

Find additional tips, troubleshooting help, and resources within our Mass Spectrometry Support Center.

What is High Energy Collision Dissociation (HCD) as it relates to Orbitrap Exactive or Q Exactive mass spectrometry instruments?

The HCD Cell consists of a straight multipole (octapole) device mounted within a metal tube. The metal tube is in turn connected to the C-Trap in direct line of sight.

The voltage offset between the C-Trap and the HCD Cell is used to accelerate the precursor ions into the gas filled cell. Inside the HCD cell, ions collide with the neutral gas causing rotation, stretching and ultimately cleaving bonds to create fragment ions and neutral species, which are subsequently removed by the vacuum system.

The generated fragment or product ions are then pushed back toward the C-Trap and focused before being pushed toward the Orbitrap analyzer.

Find additional tips, troubleshooting help, and resources within our Mass Spectrometry Support Center.