#SRI-8690-0023

SRI GC INJECTORS - ON-COLUMN INJECTOR

• Simple and reproducible injection technique
• For liquids and gases with wide range of boiling points
• For 0.53mm ID capillary and 1/8" packed columns
• No boiling point discrimination and low thermal mass
• Standard equipment on every SRI GC

One On-Column Injector (OCI) is supplied as standard equipment with the all SRI 8610C and 310 GC mainframes. If you require a second On-Column Injector, use this part number.

NOTE: If you require a second, or more, injector OF ANY TYPE on your GC, you must add this On-Column Injector hardware first, and then upgrade from there.

The OCI's low thermal mass and small size ensure that the syringe needle deposits the liquid sample into the bore of the column itself well inside the column oven, so that as the column temperature increases, even high boiling point samples are completely vaporized. This avoids boiling point discrimination or other uncertainties, and the gradual volatilization of the sample starting from a liquid droplet yields sharper peaks than flash vaporization followed by recondensation.

The OCI is supplied with carrier gas from the SRI Electronic Pressure Controller ( EPC ). The carrier gas is filtered with a convenient internally mounted molecular sieve filter which can be baked out by simply actuating a switch on the GC's front panel.

INCLUDES: EPC circuitry, 1/8" injection port hardware, septum nut, capillary adapter, digital pressure readout with 0.1psi resolution.