38A
ANALYTICAL
if Itoôê\Anûif!is
is important
spectroscopy is essential
CHEMISTRY
Metui I TEFLON FLEXIBLE SEAL CAGES
Designed especially f o r l o w concen t r a t i o n w o r k — the n e w 3.4 Meter Stigmatic (shown
Grating
here
with
Spectrograph the JAco
Vari-
USES
source, the a l l - i n - o n e e x c i t a t i o n unit). High
resolution
a n d dispersion are
CHEMICAL & POWER PRODUCTS have developed a one piece, flexible Teflon seal which may be snapped over the shaft for easy installation or may be easily removed in the same manner.
the keys to successful trace analyses —
a n d this o u t s t a n d i n g
is unsurpassed in
instrument
both.
In any analysis problem, the tougher an element is to detect and measure, the more important the spectrograph becomes. Here are just ADVANTAGES a few examples of trace analyses that are made possible through ) spectroscopy: j Teflon seal cases will not score if ; they should contact the shaft or electronics — elements in concentrations as low as 0.0001% sleeve during operation. Pump manuare important in the germanium used in those electronic marvels, facturers have found that they can transitors . . . JAco Equipment, with its outstanding resolution be more easily installed than metal and dispersion, does the analyses with ease. seal cages and do not get lost during shipment. Being flexible and in one m e t a l l u r g y — 0.0006% boron makes the tougher steel now demanded by industry . . . an exacting analytical problem — but piece, they can be snapped over the shaft prior to shipment. Their cona JAco Spectrograph does it quickly and accurately. struction provides a seal cage that nutrition — O.OOl ppm of cobalt, boron, copper, iodine, iron, will not bend or collapse under exmagnesium, manganese, molybdenum and zinc have lately been treme gland pressure. found of dietary importance . . . difficult analyses and only the spectrograph can do them!
H O W TO ORDER
. . . and so the story goes . . . in medical research . . . atomic energy . . . dozens of manufacturing industries . . . JAco Spectrochemical Equipment is on the job wherever quicker, easier and more precise trace analyses are required.
Specify Pump manufacturer's name, model and size. If intended for a reactor, agitator or other type of process equipment, give shaft diameter and bore of stuffing box.
How much time and money can JAco Spectrochemical Equipment save for you in the detection and measurement of trace elements ? Your JAco Technologist has the answer — write, wire or phone for his help today.
JAco
JARRELL-ASH
COMPANY
CHEMICAL & POWER PRODUCTS, Inc.
165 NEWBURY ST., BOSTON 16, MASS.
BRANCH OFFICES: DETROIT 13680 Capitol Avenue
EL CERRITO, CAL. 1344 Devonshire
Drive
CHATTANOOGA
QUEENS VILL., N.Y.
1431 Brood St.
8056 - 230th St.
I I B r o a d w a y , N e w York 4, Ν . Υ . I
