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Agilent 7890B GC-FID-TCD with 7693 Autosampler

Listing #:LS-005028
Brand:Agilent
Model:7890B, G4513A, G4514A
Availability:In Stock
Condition:Refurbished
Warranty:90 Days
Onsite Installation:Available upon request
$25,900.00
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Agilent 7890B GC with FID, TCD, Dual Split/Splitless Inlets & 7693 Autosampler — 450 °C oven, dual SSL inlets, FID and TCD detectors, and a 7693 autosampler with 150-vial tray. Refurbished and tested by Alliant Scientific.

Description

Agilent 7890B GC FID TCD with 7693 Autosampler Overview

This Agilent 7890B GC FID TCD system is a gas chromatograph with dual split/splitless (SSL) inlets, a flame ionization detector (FID) and a thermal conductivity detector (TCD), fitted with a 7693 autosampler. The G4513A tower and G4514A tray hold up to 150 vials in three removable 5 x 10 racks. The FID detects hydrocarbons and other organic compounds, and the TCD detects permanent gases such as nitrogen, oxygen and carbon dioxide. Laboratories use this configuration for petrochemical and refinery testing, environmental analysis, chemical manufacturing QC, and food and flavor testing.

This Agilent 7890B GC FID TCD system is offered fully refurbished and tested, in working condition, by Alliant Scientific.

Includes:

  • Agilent 7890B (G3440B) Gas Chromatograph
    • Dual Split/Splitless (SSL) Inlets
    • Flame Ionization Detector (FID)
    • Thermal Conductivity Detector (TCD)
  • Agilent 7693 Autosampler
    • G4513A Injector Tower
    • G4514A Sample Tray
  • Dell PC with Windows 11 Pro and Data System
  • 90-Day Warranty

Looking for Other Gas Chromatographs?

For a newer platform with a touchscreen, see the Agilent 8890 GC-FID with 7693 Autosampler.

Disclaimer: All brand names and trademarks are the property of their respective owners and are used for identification only. The seller is not authorized by or associated with Agilent. This product has not been reviewed, tested, or certified by Agilent to verify its quality or compatibility with Agilent’s products. Software, if included, is not transferable or upgradable.

Listing last updated: November 2026.

Technical Specifications

Manufacturer Agilent Technologies
Model 7890B (G3440B) GC with 7693 autosampler
Instrument Type Gas chromatograph with FID and TCD
Inlets Dual split/splitless (SSL), up to 400 °C, EPC
Split Ratio Up to 7,500:1
Inlet Total Flow 0 to 200 mL/min nitrogen; 0 to 1,250 mL/min hydrogen or helium
EPC Pressure Control About ±0.001 psi (typical)
Oven Temperature Range Ambient +4 °C to 450 °C, 0.1 °C setpoint resolution
Oven Ramps 20 ramps, 21 plateaus
Oven Cool-Down 450 °C to 50 °C in about 4 minutes
FID Flame ionization detector, up to 450 °C
FID Detection Limit Under 1.4 pg C/s (tridecane)
FID Linear Range Above 107
FID Data Rate Up to 500 Hz
FID Gas Flows Air 0 to 800 mL/min; hydrogen 0 to 100 mL/min; makeup 0 to 100 mL/min
TCD Thermal conductivity detector, non-destructive, up to 400 °C
TCD Detection Limit 400 pg tridecane/mL (helium carrier)
TCD Linear Range Above 105
TCD Gas Flows Makeup 0 to 12 mL/min; reference 0 to 100 mL/min
Carrier Gas Helium, hydrogen or nitrogen
Autosampler 7693 with G4513A injector tower and G4514A tray
Sample Capacity 150 vials (three removable 5 x 10 racks)
Syringe Sizes 1 to 100 µL (standard syringe carriage)
Injection Volume 10 nL to 50 µL
Area Reproducibility Better than 0.3% RSD (C10–C16, 1 µL injection, 10 injections)
Carryover Less than 1 part in 100,000
Interfaces LAN, analog outputs, remote start/stop
Software Agilent ChemStation
Data System Dell PC with Windows 11 Pro
Dimensions (H x W x D) About 49 x 58 x 51 cm (GC only)
Weight 49 kg (108 lb), GC only
Power 120/200/220/230/240 V ±10%, 50/60 Hz
Condition Refurbished and tested
Warranty 90 days

Additional information

Availability

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Condition

Model

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Onsite Installation

Warranty

Key Features

  • FID and TCD on One GC
    The FID covers hydrocarbons and organics, and the TCD covers permanent gases and other non-FID compounds.
  • Dual SSL Inlets
    Two inlets up to 400 °C, with split ratios up to 7,500:1.
  • FID Linear Range Above 107
    Trace and high-level samples quantify in one method.
  • 450 °C Oven
    20 ramps and 21 plateaus, cooling from 450 °C to 50 °C in about 4 minutes.
  • EPC Gas Control
    Pressure holds to about ±0.001 psi for stable retention times.
  • 150-Vial Tray
    Three removable 5 x 10 racks hold a full sequence.
  • 10 nL to 50 µL Injections
    Syringes from 1 µL to 100 µL, with carryover below 1 part in 100,000.
  • Complete Setup
    The Dell PC with Windows 11 Pro and ChemStation data system comes with the GC.

Applications

  • Petrochemical and Refinery Testing
    Hydrocarbon profiling by FID and fixed gases by TCD.
  • Environmental Testing
    Volatile and semi-volatile organics in water, soil and air extracts.
  • Chemical Manufacturing QC
    Purity checks on incoming and finished material.
  • Food and Flavor Testing
    Volatile flavor and aroma components.
  • Industrial Gas Analysis
    Permanent gases and inorganic compounds by TCD.

FAQ (Frequently Asked Questions)

Which detectors are included?

One flame ionization detector (FID) and one thermal conductivity detector (TCD).

What can the TCD detect that the FID cannot?

Permanent gases and other compounds that do not burn in the FID flame. The TCD is non-destructive and needs no flame gases.

How many inlets does it have?

Two split/splitless inlets, each operating up to 400 °C.

How many vials does the tray hold?

150 vials, in three removable 5 x 10 racks.

What is the oven temperature range?

Ambient +4 °C to 450 °C.

What gases does the system need?

A carrier gas (helium, hydrogen or nitrogen), plus hydrogen, air and makeup gas for the FID.

Does this unit include a warranty?

Yes — this unit ships with a 90-day warranty.