ANALYTICAL
10 A
UNUSUAL
APPLICATIONS
OF
SΡECTROGRΑΡΗIC
CHEMISTRY
ANALYSIS...
What made this Boiler Tube fail?
H
ALL LABORATORIES, INC., of Pittsburgh, Pa., can give the answer to a boiler tube failure—often within minutes—by analyzing the boiler tube scale in the spectro graph. T h e spectrograph detects even minute trace elements that may be present in the scale, which, although small, may greatly affect the boiler water-conditioning problem. Since the spectrograph does the job in a fraction of the time needed for conventional chemical analysis and still provides the required accuracy, Hall Laboratories are using it widely to save their clients time and money. Have you considered the spectrograph as a tool in your plant?
Why it pays to use "National"
OTHER ADVANTAGES OF SPECTROGRAPHIC ANALYSIS • Sensitive to 1/10,000,000 of a gram for some elements • Saves time in analysis • Detects unsuspected metals • Accurate testing is possible with very small sample • Provides a permanent record • Differentiates between two ele ments chemically very similar • Analysis can be made in some cases without destroying sample
spectroscopic
electrodes. National Carbon's spectroscopic electrodes are the purest obtainable. Each shipment is accompanied by a "Statement of Purity" which tells your analyst what trace elements are present in the electrodes. As a result, he can assess his plates or film very quickly and accurately without being confused by unexpected spectral lines.
The term "Notional" is a registered trade-mark of NATIONAL CARBON DIVISION UNION CARBIDE AND CARBON CORPORATION
30 East 42nd St., N e w York 17, Ν . Υ. District Sales Offices: Atlanta, Chicago, Dallas, Kansas City, New York, Pittsburgh, San Francisco
