The TSQ Quantum Access, a triple quadrupole mass spectrometer, offers versatility with its best in class mass range (m/z 30–3000). It has the ability to do 3000 timed SRMs as well as triggering data-dependent full scan MS/MS (Quantitation-Enhanced Data-Dependent MS/MS (QED-MS/MS)) giving the multi-component screening experiment an added dimension of specificity. Highly Selective Reaction Monitoring (H-SRM) followed by QED-MS/MS provides uncompromised quantitative performance at low levels followed by a fast, highly specific full MS/MS scan for confirmation. Additionally the Zero Cross-Talk Collision Cell eliminates false positives.

6/20/07 TSQ Access (TQU01311) Installed
9/30/2018 Retired

Mass range
• m/z 30 to 3 000 Da

Available scan functions
• Collision induced dissociation (CID)
• 3000 times SRMs (T-SRMs)
• QED-MS/MS - Simultaneous quantitation and structural confirmation
• iSRM - intelligent SRM

Instrument control software
• see spreadsheet (.xls format)

For collision energy calculation check out our MRM/SRM overview page.

Base Collision Energy (CE) Equations (Ref[1]):

• TSQ Access (1.0 mTorr) 2 + peptide: CE = 0.049 x m/z - 5.750
• TSQ Access (1.0 mTorr) 3 + peptide: CE = 0.039 x m/z + 3.314