Is Orbitrap an ion trap?

Is Orbitrap an ion trap?

The Orbitrap is a modified Kingdon ion trap that consists of two endcap electrodes and a central “spindle” electrode. A DC current applied to the Orbitrap spindle electrode results in a high static voltage between the endcap electrodes.

Is Orbitrap high resolution?

6 days ago
Orbitrap technology drives high-resolution, accurate-mass (HRAM) data, generating incredibly high resolution measurements of up to 500,000 FWHM (with the option of achieving up to 1,000,000 FWHM) at m/z 200.

What is the difference between Qtof and Orbitrap?

With a QTOF you are already in a range of mass accuracy of about 1-2 ppm and a resolution R = 30000 to 50000. Orbitraps have a mass accuracy in the sub-ppm range and are even better in resolution.

How does an Orbitrap detector work?

The Orbitrap mass analyzer operates by oscillating ions in a cylindrical electrode with tapered ends and detects signals for m/z based on Fourier transforms (FT)[2-3,6]. The electrode is powered by an RF frequency that makes the ion oscillate around the inner electrode[6].

How does a linear ion trap work?

How it works. The LIT uses a set of quadrupole rods to confine ions radially and a static electrical potential on the end electrodes to confine the ions axially. The LIT can be used as a mass filter or as a trap by creating a potential well for the ions along the axis of the trap.

How much does an Orbitrap cost?

An Orbitrap extended-mass-range model costs anywhere from about $400,000 to $800,000, she says. Fourier transform ion cyclotron resonance mass spectrometers are complex instruments that are very accurate, require expensive superconducting magnets, and can cost millions.

What is the use of Orbitrap?

Orbitrap-based mass spectrometers are used in proteomics and are also used in life science mass spectrometry such as metabolism, metabolomics, environmental, food and safety analysis.

What is the difference between Qtrap and triple quad?

QTRAP technology delivers equivalent or better data, and more of it, than you can capture on an ordinary triple quadrulpole system. You can combine all the MRM sensitivity of a triple quad, with a multi-functional linear ion trap (LIT), for unique and powerful workflows.

Is Qtof high-resolution?

High-Resolution QTOF-MRM for Highly Accurate Identification and Quantification of Trace Levels of Triterpenoids in Ganoderma lucidum Mycelium.

What are the benefits of linear ion trap?

Advantages of the LIT design are high ion storage capacity, high scan rate, and simplicity of construction. Although quadrupole rod alignment is critical, adding a quality control constraint to their production, this constraint is additionally present in the machining requirements of the 3D trap.

How does a Penning trap work?

Penning traps use a strong homogeneous axial magnetic field to confine particles radially and a quadrupole electric field to confine the particles axially. The static electric potential can be generated using a set of three electrodes: a ring and two endcaps.

How much does the Q Exactive cost?

The rates shown below are for samples submitted to the CMSP on or after July 1, 2020.

Instruments UMN Internal RATES External RATES
Orbitrap Q-Exactive, Thermo (hourly, full service) $120.00 $240.00
LCQ, Thermo (hourly) $49.50 $99.00
QTRAP 5500, SCIEX (hourly) $110.00 $220.00
QTRAP 6500*, SCIEX (hourly, full service) $130.00 $260.00

How much does a spectrometer cost?

Cost to Buy Mass Spectrometers Units can range from under $10,000 to nearly $100,000. If you’re working on a budget, this one piece of essential equipment can really break the bank. This is why you should consider leasing your lab equipment.

What is the difference between TOF and QTOF?

Compounds are identified by a combination of their mass, the measured isotope pattern, and chromatographic retention time. Addition of a quadrupole and a collision cell to a TOF forms a QTOF, a more expensive instrument that is able to isolate and fragment specific ions, as well as measure accurate mass.

What does Qtof stand for?


Acronym Definition
QTOF Quadrupole Time of Flight

What is LTQ Orbitrap?

The LTQ Orbitrap Velos is an instrument that transmits the ions from the Velos to the Orbitrap. The Velos is actually used to control the number of ions going into the Orbitrap portion of the instrument, which improves the mass accuracy.

How big is a Penning trap?

In these experiments, electrons were held in a configuration of static electric and magnetic fields in a cavity with linear dimensions of order 1 cm. The arrangement is known as a Penning trap.

How does Q exactive work?

The quadrupole rod assembly works as ion transmission device with the possibility to filter the transmitted ion according to its mass-to-charge ratios. The ions are transferred into the C-Trap and then injected into the Orbitrap mass analyzer to get mass spectra.

What is the Orbitrap elite?

Here we describe a novel version of this instrument family, the Orbitrap Elite, which is improved in three main areas. The ion transfer optics has an ion path that blocks the line of sight to achieve more robust operation.

What is an orbitrap mass analyzer?

The Orbitrap mass analyzer generally consists of an outer barrel-like electrode of maximum radius R2 and a central spindle-like electrode along the axis of maximum radius R1, with the outer electrode maintained at the virtual ground of the preamplifier, while the central electrode is at a voltage -Ur (Ur>0 for positive ions) ( 3 ).

Why Thermo Scientific Velos pro ion trap?

The Thermo Scientific Velos Pro ion trap contributes enhanced ion optics that increase sensitivity and reliability, a greater dynamic range for better precursor detection, and the power of MSn identification.

What are the advantages of a dual cell differential pressure linear ion trap?

The dual cell differential pressure linear ion trap allows for substantially accelerated scan rates and higher resolution owing to the lower pressure in the mass analyzing cell of the ion trap ( 30 ).