The Varian 325-MS Triple-Stage Quadrupole is a three-stage quadrupole mass spectrometer with a wide range of applications, including metabolomics, drug metabolism, chemical analysis, and epigenetics. It features excellent sensitivity, ruggedness, and throughput, making it an ideal choice for many applications.
The document describes the Varian 325-MS Triple Quadrupole Mass Spectrometer, a rugged instrument designed for high sensitivity and throughput. It features dual-quadrupole mass filters with pre- and post-filters (ion guides) and an 1802 lensless collision-cell system to improve ion transmission.
The instrument supports various API interfaces including Vortex Electrospray (vESI) and Atmospheric Chemical Ionization (APCI). Key specifications include a mass range of 10-2000 m/z, unit mass resolution, and scan rates up to 6000 amu/sec. It is equipped with an integrated divert valve and syringe pump for automated analysis.
| Mass range | 10-2000 m/z |
|---|---|
| Mass resolution | unit mass (0.7 amu, fwhm) |
| Mass axis stability | +0.1 amu over 24 hours |
| Scan rates | up to 6000 amu/sec |
| Adjustable dwell times | 2-14,000 ms |
| Collision gas purity | greater than 99% argon at 20 psi |
| Spray chamber temperature | up to 65° C |
The mass range is from 10 to 2000 m/z.
The scan rates can reach up to 6000 amu/sec.