RECYCLE SOLVENTS
A New
Double Beam Concave Grating Spectrophotometer by Hitachi
with a 6025 solvent recovery still
THESTILLISA12LITER SPINNING
BAND
COL
UMN USED TO RECOVER CONTAMINATED
SOL
VENTS IN PURE FORM ANDINQUANTITY.PARTICULARLY
USEFUL
FOR THE PREPARATION OF
HPLC
PURE
SOL
VENTS. 6025 SOLVENT RECOV
NSI, Inc. proudly introduces a new, low cost Double Beam addition to the popular 100 Series family of Spectrophotometers. The entire 100 Series, Single Beam and now the Double Beam, features the latest in optical technology...the Concave Grating. This significant optical achievement, combined with the latest in electronic design, places the Model 60 Double Beam far ahead of its competitors. The Model 60, in terms of resolution, accuracy and available accessories, is the most practical, reliable and useful double beam spectrophoto meter available on the market today. This is truly an all-around spectrophotometer for all your quantitative and qualitative needs. Here are just a few of the accessories available: • • • • • • •
Scanning Derivatives Printers Automatic Enzyme Rate Calculators Micro Temperature Controlled Sampler Flow Cells... Low and High Pressure Automatic Cell Positioner
Please call or write for our new brochure or a free demonstration on our Model 60 Double Beam Spectrophotometer.
S e e us at the Pittsburgh Conference, Booth 2 0 2 .
NSI
ERY
STILL:
91cm,
25 PLATES, 1.8ml
21mm
HOLDUP, WITH
THER
MOMETERS,
LITER
12
POT FLASK A N D HEAT ING MANTLE
$1285.00.
other unique B/R Glass products: MICRO S T I L L : A little 7mm X 8 " long gem that puts out 25 plates and only has 0.1ml holdup. Perfect for analy tical samples. CONVERTIBLE STILLS: Our super stills that go up to 200 theoretical plates and can separate samples only 0.5°C. apart. These stills can be used with either fluorocarbon or metal bands. MOTOR SPEED CONTROLLER: Dial in any motor rota tion speed from 1Κ RPM to 8K RPM and maintain absolute control. Perfect for critical applications with a solid state device. STILL CONSOLES: Digital temperature readout of head and pot flask temperatures, calibrated pot temperature controller, automatic reflux ratio control and a sonic alarm (calibrated in °C.) to maintain product purity during unattended operation. MOLECULAR STILLS: For those demanding separations of high molecular weight samples that cannot be separa ted by conventional means. VACUUM SUBLIMERS: Very efficient separation of drugs and other sublimable samples, plus easy recovery of the pure sublimate. SEND FOR A DESCRIPTIVE CATALOG OF THE ENTIRE B/R GLASS LINE UP OF Q U A L I T Y SEPARA TIONS EQUIPMENT.
HITACHI
SCIENTIFIC I N S T R U M E N T S
NSI, Incorporated 2672 Bayshore Frontage Road Mountain View, California 94043 Phone: (415) 961-4235
B / R GLASS INC. P. O. B O X 1 0 4 0 , P A S A D E N A , M D . 2 1 1 2 2 (301)437-0453
CIRCLE 99 ON READER SERVICE CARD 158 A · ANALYTICAL CHEMISTRY, VOL. 48, NO. 2, FEBRUARY 1976
X
CIRCLE 25 ON READER SERVICE CARD
