SULFATE DETERMINATION...
Product Capsules Flasks. Catalog and supplement on ground joint flasks. 37 Fluorimeters. Unit determines thia min, riboflavin, etc., rapidly. 52-2 Fluorometers. Bulletin on photoelec tric unit using small volumes. 143 Fraction Collectors. Circle 57 for info on full line. 61 Fume Hoods. New unit saves condi tioned lab air. Bulletin. 10
IN MINUTES INSTEAD OF HOURS!
VENI, VIDI, VECO
Furnaces. Bulletin details furnace with temperatures to 2600° F . 6 Furnaces. Details on new electric box furnace. Temp.: 1850° F . 149
FISHER
...the name that leads ill others
T. M
"CERTIFIED"
BARIUM CHLORANILATE GIVES SENSITIVE DETERMINATION OF SULFATE IN LESS THAN Vi HOUR You can make a complete and pre cise sulfate analysis in less than half an hour and eliminate 24-hour grav imetric procedures, which require precipitates to stand overnight. HOW? By adding Fisher Barium Chloranilate to a buffered p H solution con taining the sulfate, and measuring t h e liberated, deep purple acidchloranilate colorimetrically. Among the advantages of this technique are: • More rapid, sensitive sulfate deter mination
Gamma Irradiator. For solids, liquids, gases. Continuous temp, con trol. 87 Hot Plates. Details on new, portable, low cost pyrodisc. 150 Instruments. Info on spectrometers, C 0 2 analyzers, scanners, scalers. 65 Ion Exchange Resins. Data on chro matographic grade "Amberlite" resins. 2 Kjeldahl Apparatus. New catalog on complete line. 114
THERMISTORS and
VARISTORS VECO is first in the minds of most engineers whenever—and wherever— thermistors and varistors are needed because VECO can always be
Lab-Jacks. New micro jack supports 5 lb. 25 Lab Apparatus. New catalog on over 100 different items. 62 Lab Furniture. New catalog on line of steel lab units. 56
other applicable MIL standards.
Lab Furniture. Catalog, planning kit on "Flexi-Plan" furniture. 74
not adversely affected by radiation.
Microscopes. Catalog describes new polarizing microscope. 142
relied upon for engineering know-how, quality, and fast reliable service as well as rigid quality control. Manufactured to MIL-Q-5923 and
VECO glass enclosed thermistors are
VECO, a leader in solid state elec tronics, also manufactures a variety of
• Precise and accurate to approxi mately ± 1 %
Moisture Testers. Teller for granular, fibrous or semiliquid materials. 31
electronic controls, gas analysis cells,
• Drying and weighing of precipitate eliminated
Nuclear Instruments. Analyzers, am plifiers, counters, scalers. 136
medical and biological instrumentation,
• Usable for all sulfur determinations
Ovens. Low cost oven provides tem peratures to 200° C. 126
A data sheet describing the technique is available on request; Write: 100 Fisher Building, Pittsburgh 19, Pa.
B-72a
FISHER SCIENTIFIC
IN THE U.S.A. Philadelphia IN CANADA Chicago Boston Edmonton Cleveland Pittsburgh Buffalo St. Louis Montreal Detroit Charleston, W.Va. New York Washington Toronto America's Largest Manufacturer-Distributor of Laboratory Appliances & Reagent Chemicals
Circle No. 67 on Readers' Service Card
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ANALYTICAL CHEMISTRY
experimenters and circuit design kits and temperature sensing devices.
pH Meters. Data on Danish a-c line operated unit. 3
For Your Information...
electronic and thermal instruments,
pH Meters. Bulletin on new extended range "Metrion" unit. 28
Write for free VECO Technical Catalog with data on more than 650VECO stock items.
Photometers. New U-V unit. Absorbance in 350 m/* area. 21 -2 Photometers. Brochure on flame unit for soluble alkali metals. 67 Photometers. Data on new Universal light scattering unit. 147 Pipet Controls. Data on 1, 2, and 5 ml. capacity controls. 43 (Continued on page 112 A)
Cataloged in EEM Sec. 4700 and Radio Master.
VICTORY
ENGINEERINGt C0RPORATION
6 8 Springfield Road, Union, N . J. MUrdock 8 - 7 1 5 0 Circle No. 22 on Readers' Service Card
