From Protective Film Badges to a complete Nuclear Laboratory... NUCLEAR-CHICAGO instruments provide maximum efficiency and lab performance
There is more than convenience in being able to secure all your nuclear instruments and accessories from a single source . . . Nuclear-Chicago units are matched to give you maximum versatility without un necessary extra equipment or overlapping functions—and accessories have been de-
Scalers for every radiation counting requirement
Β
Complete Automatic Sample Changing System
veloped for perfect integration with the
| C [ Scintillation Well Counters for
instruments. Keeping in step with the swift progress of nuclear research, Nuclear-Chicago has developed standard instruments for just about every radiation counting require ment. For special techniques and unusual applications, our engineers will work directly with you to provide matched Nuclear instrumentation to fit your speci fic requirements.
biological and medical search
re
Count Rate Meters for moni toring and analytical work
I J L I L L I Portable Survey Meters for all types of radiation
Nuclear Instrument and Chemical Corporation, 251 West Erie Street, Chicago 10, Illinois
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INSTRUMENTATION
Now, if Nero fiddled while Rome burned, let us see what is happening in industry. According to Chemical Proc essing [18, No. 1, 17 (1955)], Fairbanks, Morse & Co., 600 South Michigan Ave., Chicago 5, 111., have developed a 10,000 and 5000-pound scale which records in gredient weights on a printed tape locked up inside the scale for the pur pose of protecting this secret informa tion even from the firm's own employees! It was designed to protect the formula of a noted brewing company—whether from duplication, or from lawsuit by the consumers of the product, is not stated. In the absence of definite information we are inclined to the more charitable interpretation. As any well informed reader knows, Fairbanks, Morse & Co. are pioneers in precise industrial weigh ing and have many notable achieve ments to their credit. This one is un doubtedly among them; but is it not curious that although the research ana lyst rarely thinks about automatic weigh ing, industry is not only doing this, but has surrounded the entire operation with precautionary measures over and above the technical difficulties? We may as well admit at this point that in addition to being slightly slow-witted by nature, we do not really understand what is meant by that modern slogan— "Research." At last count, we listed eight possible approaches to automatic weighing, only two of which have been used in previous instruments. Some of these are being studied, but as we have intimated, it must be shown how these things can be used with profit. That is, by far, the larger problem. Instruments
for the
Biologist
Physical and analytical instruments for the biologist and clinician will con tinue to be the concern of the analytical chemist. This is so because the analyst is particularly fitted to exercise his critical faculties in such situations. As we have pointed out on numerous occasions, clinical chemistry is in dire need of ad vanced instrumental techniques. The great advance was made more than a quarter of a century ago by the intro duction of microprocedures for blood analysis, as a consequence of which there was a decided shift in emphasis from urine analysis to blood analysis. However, very few determinations can be carried out without removal of a sample, however small. Furthermore, in many cases, one must be "half-dead" before significant changes show up. The matter of "normal variations" is extremely unsatisfactory and very often one is confronted with three not too clearly delineated choices—recheck the reagents, resort to surgery, or seek ANALYTICAL
CHEMISTRY
