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ANALYST'S COLUMN meetings. At present there are too many meetings per year containing very short sessions of infrared papers. Means will be considered for concentrating these into fewer and larger sessions.

N-M-R-

2. A search will be made for a suitable means of publishing infrared analytical methods applied to specific mixtures. There is now a reluctance to publish such methods on the ground that they are known techniques applied to new cases. On the other hand, analytical journals are full of papers on classical "wet" methods applied to mixtures on which often infrared could do a better job. A start has already been made on this prob­ lem through conversations with Walter Murphy, editor of ANALYTICAL CHEMISTRY.

3. Promotion of programs for collecting and disseminating infrared spectra of chem­ ical compounds. Cooperation with com­ mittees and companies now doing such work. 4. Establishment of a cooperative study of the problem of variations in absorption coefficients as obtained on different infrared spectrometers. 5. Consideration of a system or exchange of pure chemical compounds for calibration standards. 6. Active participation in the recom­ mending of standards relating to infrared, such as formats for presenting spectra, data for characterizing performance of individual spectrometers, etc. Cooperation with com­ mittees now engaged on such work. 7. The Coblentz Society will undertake to solicit opinions and keep its membership posted on plans or decisions relating to the field of infrared. Basically, the reason for the existence of the Coblentz Society has been the realiza­ tion of a large number of workers in t h e field of infrared t h a t progress in applica­ tion of t h e method t o chemistry has n o t come up to expectations during the past several years. This was evident in t h e chemical literature through t h e prepon­ derance of papers failing to use, or failing to cite t h e use of, this powerful method of research and analysis. One phase of this lack of publicity for t h e infrared method of analysis is stated in item 2 above. Also, the attitude of some editors regarding printing of spectra, as earlier quoted, was additional evidence. A further warning was t h e widespread lack of emphasis in the college chemistry departments, par­ ticularly t h e failure t o give proper recog­ nition to t h e infrared method in t h e analytical courses. Another piece of evidence, of a more material sort b u t quite arresting, was t h e following: There are now in use in the United States some 15,000 ultraviolet spectrophotometers, and there are only about 1500 infrared spectro­ photometers. There is no shadow of a doubt t h a t wherever a UV instrument is useful, an I R is likely to be even more useful. This would indicate t h a t t h e use of I R is only a tenth (or less) of what it should b e : Our answer is t h e Coblentz Society. I t is to be less rigidly organized and administered than t h e usual scientific society, and will "in no way compete with existing formal societies for chemists, physicists, etc., b u t will cut across t h e boundaries which separate these funda­ mental fields so as to provide an informal mechanism by which t h e people who use infrared can make joint efforts on common problems." VOLUME

2 7, N O . 3, M A R C H

1955

Completes Your Spectroscopy Team Perplexing chemical problems which resist solution by other methods may often be solved by applying the revolutionary High Resolution n-m-r (nuclear magnetic resonance) technique — a powerful new member of the spectroscopy team. Varian n-m-r Spectrometers are being used daily in many laboratories for detailed functional-group analyses of organic and petrochemical mixtures. And in such rapidly expanding fields as silicon, boron and fluorine chemistry, n-m-r is providing penetrating insight into molecular structures. The newly-styled Model V-4300A High Resolution n-m-r Spectrometer now incorporates an exclusive Varian "sample spinner." By mechanically rotat­ ing the sample during signal observation, tiny magnetic field inhomogeneities can be averaged out. Result: the "resolving power" of the Spec­ trometer is extended to a higher degree than ever before.

FOR

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INFORMATION...

On Varion's V-4300A High Resolution n-m-r Spectrometer, as well as the Model V-4200 Variable Frequency n - m - r Spectrometer, and associated magnet systems, contact the Special Products Division for:

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