NEWS
MERCURY • • •
FOR Y O U R
Electroanalytical Chemistry
INSTRUMENTS
Scheduling an informal session to dis cuss electroanalytical chemistry was an innovation for the division. It was felt that such a program would encourage informal discussion of pending work not ready for publica tion, unsolved problem.-, and in gen eral the type of exchange of ideas which often takes place in the corridors at meetings. Those responsible for the program, including L. B. Rogers of Massachu setts Institute of Technology and Wil liam X. Reinmuth of Columbia Uni versity, did not set any time limit to the discvission. The result : discussions were still in progress three hours after starting. The session ended only be cause the. hotel management needed the room for other scheduled events. Success of this program is expected to lead to such discussions at future meetings.
PUREST Quality BEST in Packaging PROMPT Delivery
Our INSTRUMENT MERCURY is PURE to better than one part per ten million (Certificate of Analysis with every order). Our TRIPLE DISTILLED QUALITY MERCURY meets A.C.S., N.F., and A.D.A. specifications. Both are PACKAGED in handy "squeeze" bottle with dispensing tip. SHIPPED from stock in 9 02. and 1, 6, 16 and 65-lb. polyethylene bottles. Write for Bulletin I. M. and current prices on new Mercury. MERCURY CLEANING SERVICE
Send for Form 1155 giving details oi our Cleaning Service. We make it e simple matter to send us your contami nated mercury and have it cleaned anc returned to you as either Instrumem or Triple Distilled Quality.
Trends in Clinical Chemistry
BETHLEHEM Apparatus Company, Inc. HELLERTOwN, PENNSYLVANIA
Circle No. 33 on Readers' Service Card
Portable Chil-er Recirculating Units I
FOR
Cooling and Recirculation of Liquids j At The Temperature and Volume Desired τ
MODEL L-l
WHAT THEY DO FOR THE LABORATORY OR PILOT OPERATION • • • • • • • • •
MODEL L-7
Saves lost time in set up. Saves lost time in getting on condition. Saves lost time in handling ice and dry ice. Saves cost of ice and dry ice. Saves cost of expensive auxiliary control equipment. Eliminates wasting o f materials. Eliminates duplicate runs due t o temperature fluctuation. Conserves time of highly skilled technical personnel. Can be connected to any apparatus such as stills, stabilizing condensers, condensers, fractionating columns, open and closed ! baths, jacketed kettles, dies, moulds, cold boxes, etc. 12 STANDARD MODELS
Capacity Range 'Λ H.P. to 3 H.P. Temperature Range — 1 0 ° F t o + 1 4 0 ° F . Temperature Control =b2°F or d = % ° F . W e Also Manufacture Units For Specific Low Temperatures Down to — 1 5 0 ° F Bath Standard and Explosion Proof Operations. FOR ADDITIONAL
MODEL J-2
INFORMATION,
Mayer Refrigerating Engineers, Inc. LINCOLN PARK 1 . NEW JERSEY Circle No. 8 on Readers' Service Card
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ANALYTICAL CHEMISTRY
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There are seven distinct trends in clinical chemistry, stated William B. Mason, divisional dinner speaker. Ma son, a Ph.D. analytical chemist and holder of an M.D. degree, divides his time between the schools of medicine and biochemistry at the University of Rochester. Mason noted that analytical chemists show little interest in clinical chem istry, although this is a field which is essentially analytical in nature. The seven major trends Mason noted in clinical chemistry are: 1. More determinations. Results of a wide variety of clinical tests are of great assistance to doctors in diagnos ing and treating a host of diseases, thus leading doctors to request more and more tests. 2. Faster determinations. Determi nations are made much more rapidly than in the past and thus are of greater value to the doctors. 3. Automation. The demand for more clinical tests and rapid results has encouraged development of auto matic procedures. Streamlined pro duction-line determinations are becom ing more commonplace. 4. Greater reliability. Progress is be ing made in standardizing existing pro cedures and developing good standards. New instrumentation is helpful in this regard. Agreement on results and quality control, at least on an interlaboratory basis, has been miserable, he said. 5. Low concentration work. The most exciting trend and one of the most challenging in this field is the development of methods for determin ing materials present in body fluids in extremely minute amounts—for ex-
