7890A Gas Chromatograph


Agilent’s 7890A GC provides technology that is on the leading edge of Gas Chromatography with advanced separation capabilities, powerful new productivity enhancements, and real-time self-monitoring instrument intelligence.

Alpha Omega Technologies is the premier provider of applicated systems based on the 7890 GC platform. Whether it is a standard or custom application we provide our customers turnkey solutions that are ready to run upon installation. Training and familiarization is inlcuded with most systems.

Contact an AOTI representative today for more information and for a detailed quote. Below is an overview of the 7890A GC, its benefits and most of the options available.

For a list of standard applications we provide click here.


Reproducibility - 5th-generation electronic pneumatics control (EPC) and digital electronics set a new benchmark for retention time locking (RTL) precision and help make the 7890A Agilent’s most dependable GC ever
Higher Productivity - Faster oven cool down, robust backflush capability, advanced automation features and faster GC/MS oven ramps let you get more done in less time, at the lowest possible cost per sample—all easily incorporated into your existing method.
Expanded Chromatographic Capabilities - Highly flexible EPC design enables even more sophisticated hydrocarbon analyses. An optional 3rd detector (TCD) can speed up complex gas nalyses and allows more types of analyses to be run on a single GC
Easier Operation - Powerful, chromatographer-friendly software simplifies method setup and system operation and minimizes training time. Practical, time-saving design features speed up and simplify routine maintenance.
Easy Method Transfer - Direct method transfer from your 6890 GC Because the Agilent 7890A system is built upon proven 6890 GC inlets, detectors and GC oven, you can transfer methods to the 7890A GC with complete confidence. We make it even easier with Agilent ChemStation software that can automate the process
Breakthrough Capillary Flow Technology - Agilent’s innovative Capillary Flow modules enable reliable, leak-free in-oven connections. Available in a number of useful configurations, they are versatile tools for analyzing complex matrices, as well as providing gains in productivity and data integrity
Fast Inlet Maintenance - Perform inlet maintenance in seconds with the convenience of the new Turn-Top design that is part of each split/splitless (SSL) inlet. It lets you change liners faster than ever before and no special tools or training are required.
One-Button Access for Service, Maintenance and Logs - The Agilent 7890A GC’s control panel—which will be instantly familiar to 6890 GC users—includes a new button that gives you instant access to routine maintenance information.


102 Packed Inlet with EPC and Septum Purge
112 Capillary Split/Splitless Inlet with EPC - 100 psi
113 Capillary  Split/Splitless Inlet with EPC  - 150 psi
122 On-column capillary inlet with EPC
130 Cap PTV Inlet, with EPC, Septumless, LC02
131 Cap PTV Inlet, with EPC, Septum Head, LC02
132 Cap PTV Inlet, with EPC, Septumless, LN2
133 Cap PTV Inlet, with EPC, Septum head, LN2
142 Volatiles Interface with EPC
150 Multimode Inlet, CO2 Cooling
151 Multimode Inlet, N2 or Air Cooling
198 Accessory for Manual On-Column Injection
199 Reverse Inlet Positions


5975C 5975C Series GC/MS (Diff, Turbo, Performance Turbo available)
255 NCD Nitrogen Chemiluminescence Detector
355 SCD Sulfur Chemiluminescence Detector
201 Mass Spectrometer Detector Interface
202 MSD Interface in Rear Inlet Position
203 7890 GC Interface for Ion Trap MS
205 EPC Interface for Headspace Sampler
206 Single Channel Analog Input Board
210 FID w/EPC, for packed & capillary column
211 FID w/EPC, for capillary column only
220 Thermal Conductivity Detector with EPC
221 TCD on Left-hand Side as 3rd Detector
231 Micro Electron Capture Detector with EPC
240 Single Flame Photometric Detector
241 Dual FPD with EPC
250 Universal NPD with EPC
251 Capillary NPD with EPC
252 NPD with Blos Bead and EPC
253 Capillary NPD with Blos Bead, EPC
299 Reverse detector positions


311 Cryogenic oven cooling with liquid N2
312 Cryogenic oven cooling with liquid CO2
  LTM Rapid Heating/Cooling System


Alpha Omega offers an endless combination of valving options for your GC. Below is a list of standard valving items.

6-Port Gas Sampling Valves
10-Port Gas Sampling Valves
Heated Valve Box for 1 - 4 Valves with or without actuation.
4-Port Liquid Sampling Valves
MSD Interface in Rear Inlet Position
Interface a GSV or LSV to S/Sl inlet
EPC Interface for Headspace Sampler
Install GSV or LSV on left side
Microfluids Dean Switch
Microfluids Splitter with Makeup Gas
Three Way Splitter with Make-up Gas Hardware
FID/TCD with series
Auxiliary EPC (QuickSwap Ready)