New fully jacketed
f
Adjusta-Chroni recycling column adds
versatility to the Ace liquid chromatography
system Adjustable
—
easy to operate
the utmost in convenience
-
—
low cost!
a complete system of liquid chromatography, chemical and biological, preparative and determinative. Assembly is easy without springs or clamps. Internally threaded glass parts and nylon “O" ring couplings screw together in firm but not rigid engagement to make a positive seal at pressures far above those normally used for chromatography. The system features an unusual variety of end fittings which provide means for the introduction of controlled atmospheres or pressure drop controls. Syringe introduction of samples is possible through a septum side arm; eluent samples can be withdrawn by the same means. The septum can be removed and replaced with a side arm feed tube for dual or alternate flow. Platinum wire electrodes can be introduced. Adjustable height feed tubes allow various packing heights to be employed with one column. A polyethylene float receives the droplets and prevents agitation at the surface. The rapid flow porous polyethylene or Teflon® standard packing support has straight through holes which retard mixing. The stopcocks are Teflon clad and require no lubricant. All components are described in the Ace Chromatography Brochure—send for your copy.
Ace Glass offers
5819 A djusta-Chrom Recycling Column. Jacketed, adjustable bed, chromatographic column used for recycling, ascending, or descending applications. Completely jacketed for better temperature uniformity with a single bushing at each end allowing for quick and easy adjustment of the Teflon plunger. The coarse Teflon disc gives rapid flow with a minimum of mixing. Pressure tight to over 50 lb./ in.- and can be used at temperatures up to 150°C. I.D. mm.
10 10 10
25 25 25
Length Each
mm.
300 600 900 300 600 900
-02 -04 -06 -12 -14 -16
71.65 72.65 73.65 87.00 88.00 90.00
If/
SI A< Louisville, Ky.
Circle No. 77 on Readers' Service Card
INCORPORATED Vineland
,
New
Jersey Springfield, Mass.
ANALYTICAL CHEMISTRY, VOL. 42, NO. 4, APRIL 1970
·
93 A
