MANUFACTURERS' LITERATURE Filters a n d Associated Apparatus.
Λ
48-page illustrated catalog provides basic information on Millipore niters, filter holders, accessories, analytical kits, field monitors, and technical litera ture and service. Millipore Filter Corp., Bedford, Mass. 01730. 622 Laboratory
Digital
Equipment.
A
complete line of modular test equip ment for quickly assembling program ming, control, and response measure ments are covered in a 24-page illus trated booklet. Included are logic units, time interval generators, power supplies, etc. Scientific Prototype Mfg. Corp., 623 West 129 St., New York 27, Ν. Υ. 623
Automate Your Lab Procedures the easy way...
L/l Automatic Dilutors and REPIPETS (REpetitive PI PETS) automate any lab procedure without change in technique. Hundreds of industrial and biomedical labs use these all-pyrex
instruments
routinely to increase efficiency and pre
Research Metallograph. A 6-pagc folder describes the Reichert research metallograph. This inverted-design in strument's usefulness has been en hanced by the addition of Nomarski interference contrast equipment and polarization interferometer. Wm. J. Hacker & Co., Inc., P. O. Box 646, West Caldwell, N. J. 07007. 624 Spectropolarimeter. An 8-page bul letin introduces optical rotatory dis persion as it is used to characterize complex molecules and describes the principal functional components and controls of the Durrum-Jasco auto matic spectropolarimeter Model ORD-5. A list of references is in cluded. Bulletin 51. Durrum Instru ment Corp., 925 East Meadow Drive, Palo Alto, Calif. 94303. 625
cision. Operation is simplicity itself. Just press a plunger to sample, mix, transfer, dis pense and dilute.
Instantly set with a
knife-edge pointer on a scale of 100 divisions, the instruments
are easily
checked and cleaned. Air filters keep reagents free of airborne contaminants. Repeatability within a few lambdas. Dilutors $89.50; REPIPETS $45. Immediate delivery in 1, 10, 20 and 50 ml sizes for dilutions to 1:50,000.
Micro and
macro tips included.
LABINDUSTRIES 1740 University Avenue Berkeley, California 94703 Phone: ΤΗ 3-Ο220 Circle No. 66 on Readers' Service Card
Company Periodicals Requests for copies of the following publications, catalogs, etc., should be sent directly to the address shown. Business or professional letterheads are requested. JEOL News. Vol. 2, No. 3. This 16page publication describes the JEM-7 electron microscope, the Model JLI-01 interferometer (incorporating a laser source), and JUM-5A ultra microtome. Information is also included on ap paratus for NMR, ESR, and column chromatography. Japan Electron Optics Laboratory Co., Ltd., 461 River side Ave.; Medford 55, Mass. The Analyzer. Vol. V, No. 3. This 20-page issue contains articles on microanalysis in clinical laboratories, new medical instrumentation, under graduate analytical chemistry courses, and airplane fuel system leak detection. Scientific and Process Instruments Di vision, Beckman Instruments, Inc., Fullerton, Calif. 92634.
VIKEM Bel-Art's name for VINYL lab aids This new exclusive VIKEM line is your guarantee of highest quality and full satisfaction . . . every time.
VtKEIVL TUBING C R Y S T A L CLEAR VIKEM Vinyl Tubing is the softest and most flexible of ail plastic tubing. Clear, odorless and non-toxic. Nontacky finish permits easy cleaning. Comes in 48 sizes.
VIKEM STOPPERS Red VIKEM Vinyl Stoppers exhibit excellent chemical resistance to acids, alkalies and many solvents. Totally free from sulphur or sulphur compounds as well as nitrogen compounds. Free of volatiles and will not harden on contact with alkali solutions. Soft, pliable, re silient, easily drilled with standard equipment.
V I K E M SPRAY Vinyl (PVC) in an aero sol spray forms an ex tremely durable coating used to protect plant and laboratory equipment. Re sists sunlight, acids, salt spray, scuffing. Adheres to clean metal, glass, wood, concrete and many other surfaces. Six different colors. Available at your laboratory supply house. Listed in our NEW 64 page catalog. Write Dept. Α-Ί0 for your FREE copy.
BEL ART PRODUCTS, PEQUANNOCK, N. J., 07440 OXbow 4-0500
The MOST COMPLETE line of Plastic Laboratory W a r e available f r o m ONE source Circle No. 33 on Readers' Service Card
150 A
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ANALYTICAL CHEMISTRY
