This document introduces the structure and use of Agilent 7890A high pressure injector. It is a high pressure liquid sample injector for gas chromatography analysis, which can accurately and quickly analyze high volatile liquid samples.
The Agilent G3505A is a high-pressure injection device (HPLI) designed for sampling light petroleum matrices and highly volatile liquefied hydrocarbons. It utilizes a unique sample injection system based on a deactivated removable needle interface and a liquid rotary valve, installed directly over the top of a split/splitless inlet.
The device offers excellent repeatability with RSDs typically below 1% and is compatible with various pressurized samples such as liquefied natural gas. It can be installed or uninstalled in less than 10 minutes and supports sample pressures up to 3,000 psig.
| Compatible Gas Chromatographs | Agilent 7890A and 6890 Series GCs |
|---|---|
| Sample Volume (Rotor) | 0.06 uL |
| Maximum Sample Pressure | 3,000 psig |
| Typical Repeatability (RSD) | Below 1% |
The accessory is compatible with both the Agilent 7890A and 6890 series GCs.
For the 7890A, use G3471A PCM or G3470A Aux EPC; for the 6890GC, use G1570A Aux EPC or G2317A PCM.
The device can be installed or uninstalled in less than 10 minutes.