Usage: Primarily designed for the introduction of
small (5-50 ml) liquid samples for analysis using gas chromatography.
Using the needle samples can be injected through a septum into
the carrier gas stream of the chromatograph.
Description: The sampler consists of a stainless steel
framework which holds a precision bore glass sample tube with
needle on one end. The body of the framework holds and constrains
the movement of a teflon tipped plunger which fits into the glass
tube. the delivery volume is adjusted by changing the degree
of travel of the plunger. The travel is calibrated with the aid
of six precision ground ss spacers (stamped .05, .04, .02; with
the smallest, 0.01 and 0.005, unmarked), which fit along the
exposed shaft of the plunger shaft. The instrument is adjusted
by placing one or more spacers on the shaft, and then tightening
the clamp riding in the center of the framework. The device is
housed in a black leatherette coverd box (7.5" x 5"
x 2.25") with faded blue velvet lining.
Research: This item is described in the Braun-Knecht-Heiman-Co.
Catalog 63 (1961) as item 32072, pg 490.
