A few months ago you'd have said impossible. DUAL Ni 63 DETECTORS AT 3 0 0 ° C
SAMPLE SIZE
1.2 gl
CHART SPEED
.25
SENSITIVITY
INLET AT 2 6 5 c IN/MIN
; A R R I E R - N I T R O G E N AT I 5 0 C C / M I N
2XIO"
SUPPRESSION I 0 " 7
ALDRIN HEPTACHLOR
0.6ng
0.6ng
DIELDRIN
I
0.6ng
SOLVENT
3AMPLE INJECT
2 4 0 ° C • PROGRAM HOLD
(And you'd have been right. J Until we came up with our dual-electron capture detector, it was impossible to run a temperature program as shown above. You know what happened when you tried it. You got base line shifts of such great magnitude that the method was obviated. But with this new Bendix lab chromatograph, you can temperature-program with little or no effect on base line within ranges of ambient to 300° C. The key to this new unit is our dual-electron capture detector (nickel-63). Both cells are held at exact iso-
thermal conditions with matched bacKground currents. Using the dual-column method, one column acts as the reference and is routed to one of the detector cells which acts as the reference detector. The other receives the sample. You'll see improved separations and be able to use the full sensitivity of this technique in obtaining quantitative and qualitative measurements. Make it possible. Get the facts. Write: The Bendix Corporation, Process Instruments Division, Ronceverte, West Virginia 24970.
Bendix Circle No. 9 on Readers' Service Card
4A
ANALYTICAL
CHEMISTRY
