Books
With the new
PIPETMAN You're all set
Model No. P-20D P-200D P-1000D P-5000D
ι
Now Available from Stock
Built-in Tip Ejector (Models P-20, 200, 1000) permits safe, non-contact disposal.
Recommended Ranges 0 20 200 500
-
can your integrator do this?
Advances in Chromatography, Vol. 14. J. Calvin Giddings, Eli Grushka, Jack Cazes, and Phyllis R. Brown, Eds. xiii + 459 pages. Marcel Dekker, Inc., 270 Madison Ave., New York, N.Y. 10016. 1976. $34.50
. . . DIGITALLY Set ANY VOLUME (even odd volumes like 11.5μΙ, 113.6μΙ, or 2,254 μ I) with mi crometer precision and pipette with consistent accuracy — better than 0.2 to 1.0% of full range. Four digital mi croliter pipettes, continuously ad justable over their entire range, permit optimal accuracy and reproducibility in critical pipetting. Each model can replace 30 or more fixed range units. Comfort-con toured body of high impact plas tic has low ther mal coefficient insuring excel lent repeatabil ity even with long-term, hand-held operation.
matrix-isolation spectroscopy; molec ular spectroscopy with coherent radia tion sources; recent studies of the cir cular dichroism and optical rotatory dispersion of biopolymers; and use of hexafluoroacetone as an analytical tool for NMR. Each chapter presents a discussion on the latest techniques introduced as well as a brief but perti nent discussion on the underlying principles of these techniques.
20 μΙ 200 μΙ 1000 μΙ 5000 μΙ
Price $ 99.50 99.50 99.50 125.00
All models supplied with 10 disposable tips.
RΑIΝΙΝ
INSTRUMENT CO., I N C . 94 Lincoln Street · Brighton, MA 02135 (617) 787-5050 · TELEX 94-0687
Eleven international experts discuss the latest developments and applica tions of various chromatographic tech niques. This book includes articles on nutrition as an inviting field to highperformance liquid chromatography, polyelectrolyte effects in gel chroma tography, chemically bonded phases in chromatography, physicochemical measurements using chromatography, gas-liquid chromatography in drug analysis, the investigation of complex association by gas chromatography and related chromatographic and electrophoretic techniques, gas-liquidsolid chromatography, and retention indices in gas chromatography. The extensive literature citations provided at the end of each of 11 chapters in clude some as recent as 1976. Advances in Infrared and Raman Spectroscopy, Vol. 2. R.J.H. Clark and R. E. Hester, Eds. xv - f 343 pages. Heyden & Son Ltd., Spectrum House, Alderton Crescent, London NW4 3XX, En gland. 1976. $35
This volume contains six up-to-date review articles written by 11 interna tional experts on a wide range of top ics in infrared and Raman spectrosco py. Titles of these articles are vibra tional energy levels in matrix isolated species; vibrational information from the electronic spectra of transition metal coordination compounds; indus trial plant applications of infrared and Raman spectroscopy; time-resolved and space-resolved Raman spectrosco py; the vibrational spectra of ionic va pours, liquids, and glasses; and Raman and infrared spectral studies of elec trolytes.
U.S. Government Publications Copies of the following are available PREPAID at the price shown and by stock no. from Superintendent of
CIRCLE 181 O N READER SERVICE CARD
242 A · ANALYTICAL CHEMISTRY, VOL. 49, NO. 2, FEBRUARY 1977
Peak Area and Height Readout
flie SUPERCRATOR can! M o s t i n t e g r a t o r s are c a p a b l e of g i v i n g y o u only peak area. T h e S u p e r g r a t o r p r o v i d e s y o u with a r e a d o u t of peak area a n d / o r height—with corrections made for b a s e l i n e on b o t h . R e a d o u t of peak area a n d h e i g h t is o n l y o n e of the d o z e n s of r e a s o n s the S u p e r g r a t o r s s h o u l d be in y o u r lab. W h y not call CSI t o d a y for a demonstration?
SEE US AT BOOTHS 1 0 4 5 - 1 0 4 8 AT THE PITTSBURGH CONFERENCE
COLUMBIA SCIENTIFIC I N D U S T R I E S CORP. P.O. Box 9908, Austin, Texas 78766 (512) 258-51 9 1 , TWX 910-874-1 364 Outside Texas call Toll Free (800) 531-5003 CIRCLE 39 ON READER SERVICE CARD
