This system includes:
- (1) Thermo Scientific ISQ LT Single Quadrupole Mass Spectrometer
- (1) Thermo Scientific Direct Probe Controller
- (1) Thermo Scientific GC Column
- (1) Edwards Rotary Pump
- PC with software
Thermo Scientific ISQ LT Single Quadrupole Mass Spectrometer
| Mass Range | 1.2 to 1100 U with Unit Mass Resolution |
|---|---|
| Detectors | DynaMax XR |
| EI Full Scan Installation Specification | 1 µL of 1 pg/µL Octafluoronaphthalene (OFN) Will Produce The Following Minimum Signal to Noise for m/z 272 When Scanning From 50 to 300 U:600:1 Using Helium as Carrier Gas |
| Electron Energy | Adjustable From 0 to 150 eV |
| Emission Current | Up to 350 µA |
| Mass Filter | Dual-Stage Mass Filter with Off-Axis Ion Guide and Solid, Homogeneous Non-Coated Quadrupole Rods |
| Modes | Standard: Electron Ionization (EI), with Full Scan, SIM, and Sequential Full Scan/SIM; Optional: Chemical Ionization, Including PCI, NCI, PPINICI and EI/CI Combination |
| Negative Chemical Ionization Installation Spec | 2 µL of 100 fg/µL of OFN Will Produce The Following Minimum Signal to Noise for m/z 272 When Scanning From 50 to 300 U Using Methane Reagent Gas: 600:1 Using Helium as Carrier Gas |
| Pumping Systems | Standard Capacity (>60 L/s) or High-Capacity (>230 L/s), or Extended Capacity (300 L/s) Turbomolecular Pump with 3.3 m3/h Mechanical Pump; Optional Oil-Free Scroll Pump |
| Reagent Gas | Software-Switchable Dual Reagent Gas with Digital Flow Control |
| Scanning Capabilities | Scan Rate: Up to 20,000 U/Sec; Scan Cycles: 97 Scans/Sec to Disc When Scanning Across 125 U |
| Source Type | ExtractaBrite EI Source, with Repeller, Source Lenses, RF Lens and Dual Filaments in All Ionization Modes |
| Vacuum Probe Interlock | Vacuum Probe Interlock to Remove Entire Source or Change Ionization Modes Without Venting |
| Item Description | ISQ Single Quadrupole Mass Spectrometer |
Thermo Scientific Direct Probe Controller
The Direct Probe Controller (DPC) is used to communicate information from a sample probe (DIP or DEP) to the mass spectrometer. The DPC also allows you to enter heating and data acquisition parameters to the mass spectrometer. Direct probe systems allow rapid sample screening for any application that do not require a gas chromatograph (GC) column separation. Another advantage to using a DIP or a DEP is to have a wide range of samples to volatilize directly into the ion source.
