The GCT Premier is a high-performance, bench-top, orthogonal acceleration/time-of-flight (oa-TOF) mass spectrometer. To identify volatile sample components, the instrument is coupled to a GC. To identify nonvolatile components, it operates as a standalone instrument that receives sample through a direct insertion (DI) or direct chemical ionization (DCI) probe. Unlike scanning instruments, a TOF instrument performs parallel detection of all masses within the spectrum at high sensitivity and acquisition rates. This is particularly advantageous when the instrument is coupled to fast chromatography, because each spectrum represents the sample composition Ion source 1-3 at a given moment, regardless of how rapidly the sample composition is changing.

Mass range
4000 Dalton.
Resolution
7000 resolution (FWHM) at m/z 614.
Acquisition rate
Up to 20 full spectra (to m/z 800) per second in normal mode.
Up to 10 full spectra (to m/z 800) per second in DRE extended mode.
GC sensitivity
EI positive ionization mode
1 pg of hexachlorobenzene (m/z 283.8) will give a peak to peak signal-to-noise ratio (S:N) >10:1 while acquiring full spectra over a mass range up to m/z 800.
CI positive ionization mode
100 pg of benzophenone (m/z 183.1) will give a S:N >150:1 while acquiring full spectra over a mass range up to m/z 800.
CI negative ionization mode
1 pg of octafluoronapthalene (m/z 272.0) will give a S:N >100:1 while acquiring full spectra over a mass range up to m/z 800.
Mass accuracy
When a suitable peak of known mass is used as an internal reference, the RMS error between the measured and calculated mass is less than 1 mDa for measurements below m/z 200, and is less than 5 ppm for measurements above m/z 200. Peaks are required to have sufficient intensity and be free from interference from other masses.
For example:
In EI positive ionization mode, less than 10 ng of methyl stearate (m/z 298.3) injected onto a capillary column will give, for all peaks above mass 70 and greater than 10% of the base peak intensity, 1.25 mDa RMS error or better, with the 4.0 GHz TDC.
Dynamic range
Enabled by dynamic range enhancement (DRE) and digital dead time
correction (DDTC), the dynamic range of the instrument is over four orders of
magnitude.

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Quality

Our refurbished instruments are tested and repaired to meet factory specifications. We follow Installation Qualification, Operational Qualification, and Performance Qualification protocols (IQ, PQ and OQ).

Expertise

Our team of skilled technicians are experts at fixing analytical instruments. We have been working with Agilent, Waters, Perkin Elmer, Sciex, Shimadzu, and Thermo instruments for many years. We are constantly updating our knowledge with the latest technology and information to enable us to deliver the best support in the industry. We provide value added support and qualification/validation with all our instruments. We endeavor to develop strategic partnerships with our clients so that they consider our team as an extension of their employees. We are an affordable alternative to many normally expensive business projects.

Warranty and Support

We offer warranty on all refurbished instruments. Warranty starts at 3 months, with the option to extend the period. While your instrument is on warranty, we will provide Email (support@spectralabsci.com) and phone support and troubleshooting if you require assistance. If there is ever anything wrong with the equipment, we will replace it. Warranty begins from the date your equipment is successfully delivered. Any issues that occur during warranty should be reported immediately, describing the issues in as much detail as possible. Do not attempt to repair the equipment or involve a 3rd party without our express permission – this will result in voiding our warranty.

We will match our warranty duration with our competitors.

Installation and Training

If you purchase equipment from Spectralab Scientific, we offer installation and familiarization by our service technicians for an additional fee. If the instrument is particularly complicated, we highly recommend this service. If you’ve purchased less-complex equipment from us that you would like to install yourself, we can provide Team Viewer, email, or telephone support for no additional cost.

Large Inventory

We have a large inventory of equipment, components and parts in stock. You can find all the equipment you need for you lab in our store, as well as mix and match components for your systems.

International Shipping

We have sufficient export experience, including professional packing and proper documentation. Complementary shipping and handling can be applied upon immediate purchase. We include customs fees, brokerage, and duties for shipping to the US.

Price Matching & Discounts

Purchasing our refurbished instruments can save you anywhere from 30% to 90% compared to purchasing brand new. We will try to match or beat any price from our competitors, so feel free to inquire! Complementary shipping and handling can be applied upon immediate purchase.