Agilent HP 7673 Autosampler

What you are buying

An HP 7673A automatic liquid sampler. It draws each sample from a 100-position tray and injects it onto a GC inlet, controlled through a separate controller module rather than a modern CAN bus connection.

Every unit moves through the GenTech Certified process. Solution Scientists disassemble and inspect each module, replace all consumables and degraded wear components, then tune and calibrate the instrument and verify performance against OEM and published benchmarks using known reference chemicals. The instrument ships with its verification report. A certified-refurbished system gives you that performance without the capital cost or the lead time of a new purchase.

What Agilent says about this platform

The HP 7673A automatic sampler is built from three modules. The 18594A controller and communication module supplies power and communications to the injector and the tray. The 18593A injector module draws a volume of sample from a vial and injects it into the inlet using a fast injection technique. The 18596A tray module moves sample vials to and from the injector. An optional 18587A barcode reader module reads vial numbers and special method functions and can also agitate the sample vial. The tray holds 100 samples. Injection precision runs under 0.3 percent for cool on-column inlets and under 0.5 percent for heated packed inlets, across a capillary split range of 50:1 to 400:1. Septum life runs past 200 injections at an 11-millimeter diameter. The 7673B variant added GPIB communication support that the original 7673A lacked, which relied on HPIB and Inet instead. Agilent introduced the platform in 1994 and later discontinued support, leaving parts availability limited today.

What each component does

Controller

The 18594A controller and communication module supplies power and communications to the injector and tray.

Injector

The 18593A injector module draws a sample from its vial and injects it into the inlet using a fast injection technique.

Tray

The 18596A tray module moves each sample vial to and from the injector, holding up to 100 samples.

Technical detail

*OEM specifications for brand new instrument.

Labs that run this system

The 7673 Tower is method-compatible across the techniques most regulated and research labs run every day. These are the application areas buyers ask about most.