NEW
For Rapid, Sensitive, Accurate, Automatic The COTLOVE*
Nylabs
. . .
CHLORIDOMETER
MECHANICAL HAND Apparatus
Titration
Clamp
For the analysis of serum, urine, and tissue ex tracts; synovial, spinal, gastro-intestinal, and other body fluids ; sweat, pleural effusions, and other exu dates and transudates ; brine ; and dialyzates. IN 6 STEPS A N D IN LESS THAN 60 SECONDS SET ADJUSTABLE POINTER TO IO DIVISIONS ABOVE INDICATING POINTER
RESET TIMER TO ZERO
TURN SWITCH TO "TITRATE" (No.2)
An apparatus clamp that always provides convenience and positive grasping power. ONE STYLE and 2 SIZES meet every clamping requirement. The NYLAB Mechanical Hand can firmly grasp, with equal effi ciency, any object from a thin wire to a condenser or flask. Adapts to and holds all conventional shapes.
The most versatile laboratory clamp yet designed!
WHEN TIMER STOPS AUTOMATICALLY, RECORD SECONDS
SELECTED TITRATION RANGE
T h e Chloridometer is used for automatic and accurate determination of chloride concentration and is potentially adaptable to bromide, iodide, and sulfhydryl groups. In use in t h e leading medical schools and research centers the Chloridometer snowed important advantages of sensitivity and simplicity over t h e commonly employed colorimetric and electrometric methods. T h e instrument uses an amperometric end-point to obtain automatic shut-off at a pre-set increment of indicator cur rent. Generator electrodes in t h e coulometric circuit release silver ions into the titration solution of a constant rate. When all chloride is precipitated, the increasing con centration of free silver ion causes a rising current to flow through the indicator electrodes and the pre-set meterrelay stops the timer, which runs as silver ions are generated. Since the rate of generation of silver ion is constant, the amount of chloride precipitated is proportional t o the elapsed time. ACCURACY:
Bird's-eye-view showing the exclusive swivel feature of Mechanical Hand . . . . A new type of V-Block mounting provides complete angular adjustability . . . . Flip-over clamping arm (one side for small objects—the other side for targe objects) adjusts for apparatus up to 3 % " maximum diameter. Constructed of a strong, corrosion resistant aluminum alloy with small parts of stainless steel. Small sire Large size Range: 0 to 2V*" Range: 0 to 3 V 4 " Catalog No. 22990-6 Catalog No. 22990-10 $4.25 $4.75
NYLAB
Write for further detailed information.
± . 5 p e r cent, better than ± . 1 p e r cent under optimal conditions. SENSITIVITY: 0 . 2 5 microequivalent. SAMPLE SIZE: 0 . 0 1 ml or more of serum with ± . 5 p e r cent accuracy, smaller amounts with d i minished accuracy. PRICE: Complete with electrode assembly, 1 o z . silver w i r e , 2 0 0 cuvettes, 2 stainless steel cuvette racks, 3 vials o f gelatin r e a g e n t ( p o w d e r ) , 5 0 0 ml s p r a y bottle, cleaning kit a n d instruction manual. $498.00 DELIVERY: From stock. * The CHLORIDOMETER is produced according to the design of E. Cotlove, H. V. Trantham and R. L. Bowman of the National Heart Institute, Bethesda, Md. For models with other voltage and current ratings and for complete performance data, specifications, and description of optional accessories, such as automatic dispensing pipet te-buret . . . SEND FOR Precision Instruments
BUCHLER
INSTRUMENTS
BULLETIN 4 A - 2 0 0 0 Laboratory
Apparatus
LABORATORY GLASS & INSTRUMENT CORP.
New York Laboratory Supply Co., Inc. 76-78
84 A
VAR1CK
·
STREET
NEW
YORK
Circle No. 84 A-1 on Readers' Service Card, page 101 A ANALYTICAL CHEMISTRY
1 3 , Ν . Υ.
514 West 147th Street
·
New York 31, Ν. Υ.
Telephone: ADirondack 4-2626 Circle No. 84 A-2 on Readers' Service Card, page 101 A
