Manostat Divisionof Greiner Scientific Corporation
1
PRODUCT CAPSULES Short "refreshers" on last month's ads. Obtain free information on any of the products or services described by writing in the appropriate key numbers in the "Product Capsules" portion of the reply card preceding this section. Absorption cells. Catalog on cuvettes, storage racks, mixers. Ρ 148 Absorbents. Technical paper on purification of solvents by active alumina. Ρ 193 Analyzers. 19 different plug-ins for high and input medium resolution, sig- nal averaging. Brochure. Ρ 61 Analyzers. Electrophoretic mass transport unit measures suspensions of particles up to 1,000 microns. Ρ 127 Analyzers. Pushbutton operation de- termines x-ray energies, stores pro- gram for continuous, repetitive analy- sis. Ρ 155 Analyzers. Instant qualitative analy- sis of metallic and non-metallic ele- ments. Ρ 178 Atomic absorption. Bulletins on units for routine, multi-element, simul- taneous analyses. Ρ 63 Balances. Catalog on 18 top-loading units with high load-to-precision ratio. Ρ 122 Balances. Catalog on 11 digital read- out, high-speed, top-loading units. Ρ 123 Balances. Arrestment and beam re- lease mechanism are fully automatic in line of 3 new units. Ρ 168 Balances. New top-loading unit has 160 g capacity, 1 mg accuracy. Ρ 175 Bombs. Specs on oxygen bomb com- bustion apparatus to determine sulfur values. Ρ 144 Books. Advances in magnetic reso- nance, ρ 3 Books. Chemistry of nonaqueous sol- vents, ρ 3 Books. Equilibrium: a chemistry of solutions. ρ 83 Books. Fundamentals of analytical chemistry. ρ 83 Books. Introduction to gas-liquid chromatography. Ρ 3 Books. Introduction to molecular spectroscopy. ρ 3 Books. Paper chromatography and electrophoresis. ρ 3 Books. Physical principles and tech- niques of protein chemistry. Ρ 3 Books. Principles of instrumeintal analysis. Ρ 83 Books. Research techniques in non- destructive testing. Ρ 3 Books. Spectroscopy in inorganic chemistry. Ρ 3 Books. Standard methods of clinical chemistry. Ρ 3 Cameras. Brochure on rotating prism unit which stops action at 5,000 pictures per second. Ρ 158 Centrifuges. Accommodates over 50 combinations of tubes with a range to 5500 rpm. Ρ 40 Chemicals. Data on reagent acids and electronic-grade chemicals. Ρ 37 Chloride equipment. Unit determines serum chloride in 40 seconds, has direct readout. Ρ 24 Choppers. Designed for photo- and radiometric applications with lock-in amplifier. Specs. Ρ 94 Chromatography. Bulletin on TLC analysis of toxic drugs. Ρ 56 Chromatography. Bulletin on chro- matogram sheet and development ap- paratus for TLC. Ρ 56 Chromatography. Bibliography on use of chromatography sheet in TLC. Ρ 56 Chromatography. Bulletin on sol- vents and reagents for TLC. Ρ 56 Chromatography, gas. Pretested mo- lecular sieves available in all mesh sizes. Ρ 7 (Continued on page 136 A) now... for applications where cool, noiseless operation... uniform flow rates, reproducibility, and simple reversibility are important... ADVANCED MODEL varistaltic pump WITH SOLID STATE CONTROLS This versatile, foolproof model produces peristaltic effect to pump acids, bases, toxic and sterile liquids and gases — safely and quietly through flexible tubing — without the liquid coming in contact with pumping mechanism. Single control knob regulates uniformly variable speed control of gearless direct-drive perma- nent-magnet motor by solid-state circuitry ... for reproducibly adjusted speeds from 24 to 400 R.P.M. with ± 3% stability... and a delivery volume range from 30 ml. to 5,000 ml. per minute. Switch action re- versibility; fingertip control of forward and reverse speed. Maximum head—25 PSI gauge or 57 feet of water. Any soft, flexible tubing (from 45 to 70 durometer Shore) with Vu' wall up to %" inside diameter can be used. Unit weighs approx. 18 lbs.; is housed in handsome 2-tone lightweight metal cabinet—12 1 /2" long χ 9Vz" deep χ IVz" high. Available in 115-volt or 220-volt A.C. models. 72-895-05 Advanced Model Varistaltic Pump (115-volt A.C.) $275.00 72-895-05-22 Same Model, but 220-volt A.C $325.00 For information on our lull line of VARISTALTIC Pumps and VERSATUBE (Chemically inert tubing) write lor Bulletin P-1. Available from your laboratory supply dealer Manostat Division of Greiner Scientific Corporation Dept. 521A, 20 North Moore Street, New York, New York 10013 (212) 966-1190 SEE US AT THE FASΕΒ SHOW- BOOTH T-10. ANALYTICAL CHEMISTRY, VOL. 43, NO. 4, APRIL 1971 · 135 A Circle Να. 64 on Readers' Service Card
Transcript of Manostat Divisionof Greiner Scientific Corporation
PRODUCT CAPSULES Short "refreshers" on last month's ads. Obtain free information on any of the products or services described by writing in the appropriate key numbers in the "Product Capsules" portion of the reply card preceding this section.
Absorption cells. Catalog on cuvettes, storage racks, mixers. Ρ 148
Absorbents. Technical paper on purification of solvents by active alumina. Ρ 193
Analyzers. 19 different plug-ins for high and input medium resolution, signal averaging. Brochure. Ρ 61
Analyzers. Electrophoretic mass transport unit measures suspensions of particles up to 1,000 microns. Ρ 127 Analyzers. Pushbutton operation determines x-ray energies, stores program for continuous, repetitive analysis. Ρ 155
Analyzers. Instant qualitative analysis of metallic and non-metallic elements. Ρ 178
Atomic absorption. Bulletins on units for routine, multi-element, simultaneous analyses. Ρ 63
Balances. Catalog on 18 top-loading units with high load-to-precision ratio.
Ρ 122
Balances. Catalog on 11 digital readout, high-speed, top-loading units.
Ρ 123
Balances. Arrestment and beam release mechanism are fully automatic in line of 3 new units. Ρ 168
Balances. New top-loading unit has 160 g capacity, 1 mg accuracy. Ρ 175
Bombs. Specs on oxygen bomb combustion apparatus to determine sulfur values. Ρ 144
Books. Advances in magnetic resonance, ρ 3
Books. Chemistry of nonaqueous solvents, ρ 3
Books. Equilibrium: a chemistry of solutions. ρ 83
Books. Fundamentals of analytical chemistry. ρ 83
Books. Introduction to gas-liquid chromatography. Ρ 3
Books. Introduction to molecular spectroscopy. ρ 3
Books. Paper chromatography and electrophoresis. ρ 3
Books. Physical principles and techniques of protein chemistry. Ρ 3
Books. Principles of instrumeintal analysis. Ρ 83
Books. Research techniques in nondestructive testing. Ρ 3
Books. Spectroscopy in inorganic chemistry. Ρ 3
Books. Standard methods of clinical chemistry. Ρ 3
Cameras. Brochure on rotating prism unit which stops action at 5,000 pictures per second. Ρ 158
Centrifuges. Accommodates over 50 combinations of tubes with a range to 5500 rpm. Ρ 40
Chemicals. Data on reagent acids and electronic-grade chemicals. Ρ 37
Chloride equipment. Unit determines serum chloride in 40 seconds, has direct readout. Ρ 24
Choppers. Designed for photo- and radiometric applications with lock-in amplifier. Specs. Ρ 94
Chromatography. Bulletin on TLC analysis of toxic drugs. Ρ 56 Chromatography. Bulletin on chro-matogram sheet and development apparatus for TLC. Ρ 56 Chromatography. Bibliography on use of chromatography sheet in TLC.
Ρ 56
Chromatography. Bulletin on solvents and reagents for TLC. Ρ 56 Chromatography, gas. Pretested molecular sieves available in all mesh sizes.
Ρ 7 (Continued on page 136 A)
now... for applications where cool, noiseless operation... uniform flow rates, reproducibility, and simple reversibility are important...
ADVANCED MODEL
v a r i s t a l t i c p u m p WITH SOLID STATE CONTROLS
This versatile, foolproof model produces peristaltic effect to pump acids, bases, toxic and sterile liquids and gases — safely and quietly through flexible tubing — without the liquid coming in contact with pumping mechanism. Single control knob regulates uniformly variable speed control of gearless direct-drive permanent-magnet motor by solid-state circuitry . . . for reproducibly adjusted speeds from 24 to 400 R.P.M. with ± 3% stabi l i ty. . . and a delivery volume range from 30 ml. to 5,000 ml. per minute. Switch action reversibility; fingertip control of forward
and reverse speed. Maximum head—25 PSI gauge or 57 feet of water.
Any soft, flexible tubing (from 45 to 70 durometer Shore) with Vu' wall up to %" inside diameter can be used.
Unit weighs approx. 18 lbs.; is housed in handsome 2-tone lightweight metal cabinet—121/2" long χ 9Vz" deep χ IVz" high. Available in 115-volt or 220-volt A.C. models. 72-895-05 Advanced Model Varistaltic
Pump (115-volt A.C.) $275.00 72-895-05-22 Same Model,
but 220-volt A.C $325.00 For information on our lull line of VARISTALTIC Pumps and VERSATUBE (Chemically inert tubing) write lor Bulletin P-1.
Available from your laboratory supply dealer
Manostat Division of Greiner Scientific Corporation Dept. 521A, 20 North Moore Street, New York, New York 10013 (212) 966-1190
SEE US AT THE FASΕΒ SHOW-
BOOTH T-10.
ANALYTICAL CHEMISTRY, VOL. 43, NO. 4, APRIL 1971 · 135 A Circle Να. 64 on Readers' Service Card
