LABORATORY OF THE MONTH Automatic titration equipment with both potentiometric and spectrophotometric end point detection is used to determine acidity, to make oxirane oxygen and chloride analyses. The automatic titrator and digital read-out buret, mounted as a mobile unit, can be quickly rearranged for repetitive analyses
NEW DOUBLE DUTY INSTRUMENT
AGITHERM
ONLY
Gas chromatography has largely replaced tedious chemical procedures formerly required for analysis of vegetable oils. Recently a flame ionization, linear-pro grammed temperature instrument has been added to determine trace organics in water solution and in the separation of wide boiling mixtures
$
67 50
Hot Plate— —Magnetic Stirrer N e w low cost p l u s a d v a n c e d design features Now you can heat and stir simul taneously with WACO AGITHERM. Heavy-duty individual controls allow use of either stirrer or hot plate in dependently when desired. The 500 watt hotplate can be set thermostatically at any temperature up to 600° F. Pilot light indicates when heat is on. The perforated stainless steel case assures cool operation of motor. Compact de sign, 6V2" diameter by 5" high. No. NN-84500 Agitherm Stirrer Hot Plate, complete with one each glass and Teflon covered stirring bars Vs χ l'A", for 115 volt, 70 cycle, A.C $67.50.
ORDER NOW! LABORATORY SUPPLIES AND EQUIPMENT
WlLKENS-ANDERSON CO. 4525 W. DIVISION ST.
CHICAGO 5 1 , I I I .
Circle No. 137 on Readers' Service Card VOL. 33, NO. 10, SEPTEMBER 1961
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