cold plasma ashing preserves what you want
NEW PRODUCTS
«Ale·»**; CT-75 cryothermal system extends the range in temperature programming, providing sub-ambient operation using either C 0 2 or liquid N 2 with direct py rometer readout from —180° to + 4 0 0 ° C. This modular system is adaptable to most chromatographs. Micro-Tek Instruments, Inc., P. 0 . Box 15409, Baton Rouge, La. 409
before ashing-urethan
foam
after
a s h i n g the delicate inor ganic structure remains unaltered for precise quantitative analysis. Tracerlab's new LTA-600 oxidizes sam ples w i t h a c o l d plasma of a t o m i c oxygen to leave inorganic constituents unaltered.
N e u t r o n A c t i v a t i o n Foils K i t N o . ]550 contains a variety of neutron activation foils a n d is designed to aid in choosing t h e most suitable foils for a particular application. T h e kit consists of 34 foils of 15 different foil types, a 50-page m a n u a l , forceps, a n d a special s u m m a r y of reactions, cross-sec tions, and energies for each of t h e m a terials. Aluminum, cobalt, copper, dys prosium-aluminum, gold, indium, iron, magnesium, manganese-copper, nickel, silver, thorium, vanadium, sulfur pel lets, a n d cadmium cover sets are included. R e a c t o r Experiments, Inc., 140 H a r b o r Blvd., Belmont, Calif. 94002 410
on equip
ment, techniques and services.
TRACERLAB
ΙΑ Division of Laboratory for Electronics
2030 WRIGHT AVENUE, RICHMOND, CALIFORNIA Circle No. 148 on Readers' Service Card 108 A
ANALYTICAL CHEMISTRY
Where perfection depends on cleanli ness, it is impossible to escape the fact that glassware, equipment, instruments and component parts—requiring abso lute cleanliness—in Laboratories, Hos pitals and Industries—must depend on the highest quality detergents.
A1C0N0X THE MASTER CLEANER For manual clean ing. Meets highest government speci fications! In 3 lb. boxes, and 25, 50, 100,300 lb. drums.
3 lb. BOX— $2.12 Case of 12 Boxes—$20.00
ALCOJET prevents water-spotting from final rinse, for scientifically-clean glass, metals, plastics, etc., in all mechanical washers. In 5 lb. boxes and drums as above.
5 lb. BOX-$3.00 Case of 6 Boxes—$15.00
ALCOTABS For syphon-type pipette and test tube washers—one easy operation! In 100tablet boxes.
Permits more accurate quantitative ele mental and structural analyses of plant and animal tissues, bones, coal, oil well cores, polymers, and radioactive mate rials. Prepares pure samples for atomic absorption spectrophotometry, mass spectrometry, emission spectroscopy, X-ray diffraction, and electron micros copy.
send for literatu r e
YOU'RE NEVER IN DOUBT WHEN IT'S
Box of 100 Tablets-$5.00
LIQUI-NOX THE PERFECT LIQUID DETERGENT! , / *
Refractive index flow monitor meas ures changes of sample components as they elute from a liquid column, re action vessel, or distilling column. Model 4 0 4 provides a continuous readout (and strip-chart recording) of refractive index. Sensitivity is within 0.0005 refractive index unit full scale on a 1-mv. recorder. Two measurement ranges are offered: 1.30 to 1.45 units and 1.45 to 1.60 units. The detector is dual dif ferential with measurement of two streams or one stream and a captive reference. Internal volume is 1.1 m l . Nester/Faust Mfg. Corp., 2 4 0 1 Ogletown Rd., Newark, Del. 1 9 7 1 1 4 1 1
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For manual cleaning. Mild (neutral p H ) . Non-toxic. Contains no phosphates. Equally effective in hard or soft water. Outstanding blood and fat solvent. In quarts, gallons, & 15 gallon drums.
PERQUART-$2.15 Case of 12 Quarts—$19.92 PER GALLON-$7.00 Case of 4 Gallons—$24.00 All prices slightly hisher West of Rockies.
E. H . S A R G E N T & C O . Scientific Laboratory Instruments Apparatus · Chemicals Chicago · Detroit · Dallas * Birmingham Anaheim · Springfield, N.J. Baltimore · Houston · Cleveland inquire about bulk prices for additional savings. Circle No. 151 on Readers' Service Card
