Carl Schleicher & Schuell Co.

Post on 07-Feb-2017

212 views 0 download

transcript

REPORT FOR ANALYSTS

The radioisotope storage room at the University of Michigan is seen through a 3 foot thick window. The facilities and equipment at Michigan are relatively extensive compared to most universities

courses where given or by apprent ic ing himself to someone working in the field. The" apprent ice t ra ining, how­ever, is generally limited to work with a few tracers such as C14 r a the r t han an acqua in tance with the over-all field.

There has been lit t le progress in establishing univers i ty l abora tory courses in the pas t decade. T h e Oak Ridge Ins t i tu t e , with i ts one-mon th handl ing course, has been t h e largest producer of t ra ined personnel . Labora to ry courses are being given a t the Massachuse t t s In s t i t u t e of Tech­nology, Rensselaer Polytechnic I n ­s t i tu te , t he Univers i ty of Illinois, Univers i ty of Michigan, and a few other places. Some universit ies have specialized g radua t e courses for nu­clear chemists.

In m a n y cases re luctance to es­tablish a labora tory course m a y be based on the idea t h a t there is a lot of work involved.

If t racer work were incorporated a t the advanced underg radua te level, s tuden ts would accept this technique as a rout ine me thod ra ther t h a n a "freak." Assay of v i t amin B12 by the isotope dilution me thod is a good example. Complete coverage of t h e field of t racer work could be given to g radua te s tuden ts and some seniors. At this stage it is important t ha t the s tuden t be in t roduced to a var i ­e ty of techniques. Overemphasis on easily set up experiments, such as measurements , should be avoided. The nuclear aspects are sometimes overemphasized a t the expense of appreciat ion for t racer problems.

Typical Course. At the Univers i ty of Michigan a nuclear chemical tech­

niques course has been given for six years . One object is to give s tuden ts a sufficiently broad background in nuclear and t racer techniques so t h a t they can get radioisotopes from the Atomic Energy Commission. I t is designed to serve not only chemists, bu t · biochemists, zoologists, pha rma­cologists, chemical engineers, nuclear engineers, physicists, and others . Of the 80 s tuden ts who have t aken the course, only a small percentage have been nuclear chemists .

T h e course consists of one hour of lecture and four hours of l abora tory a week. The schedule consists of roughly five p a r t s : th ree weeks each on counting experiments , weak β-emit t ing mater ia ls such as C14, inor­ganic separat ions such as precipita­tion, ion exchange, and solvent ex­t ract ion, t racer experiments such as exchange ra tes and solubility product de terminat ion , and high level experi­ments including act ivat ion analysis with por table neu t ron sources, work with por table lead " c a v e s " in a hood, and work in glove boxes. P lans are

Argonne National Laboratory has ex­tensive facilities for training in the field of radiochemistry

You get these added advantages

with S&S Analytical Filter Papers

• Lower Ash Content than any filter paper we have tested—less than 0.007% for quantitative grades. • Higher Alpha Cellulose Con­tent than any filter paper we have tested—97-98% for quantitative and qualitative grades. m No Price Premium. Your com­pany purchasing agent pays no more for the finest. For the chemist who can specify his brand of filter papers. S & S Analyti­cal Filter Papers offer outstanding advantages. These advantages are possible because of the skill, care and quality control methods used by S & S from selection of raws through to the finished product.

Every Lot Pre-lested A substantial test portion of each batch of S & S Analytical Filter Papers is used for quality control determinations in our laboratories. This helps assure that you receive fil­ter papers uniform physically and chemically—lot after lot, month after month, year after year. Specify S & S Analytical Filter Papers for extra advantages to you in your work at no extra cost. Get the "mar­gin of safety" in your analyses that comes with using what many chem­ists believe to be the finest analytical filter paper in the world.

FREE SAMPLER Contains assortment of quantitative and qualitative glades. Also, S & S Filtra­tion Chart, Quick Reference Catalog, table of compara­tive filter paper grades.

Carl Schleicher & Schuell Co. Keene, New Hampshire · Dept. A-97

Circle No. 21 A on Readers' Service Card, page 99 A

V O L . 29, NO. 9, SEPTEMBER 1957 · 2 1 A