ANTEK INSTRUMENTS, INC. | Analytical Chemistry

Journal of Agricultural and Food Chemistry. Antioxidant Activities and Xanthine Oxidase Inhibitory Effects of Phenolic Phytochemicals from Acacia conf...
4 downloads 0 Views 1MB Size
A FAST, EFFICIENT ALTERNATIVE TO KJELDAHL...

polyelectron systems, transition-metal complexes, and examples from biolog­ ical systems. At the end there are four appendices on experimental hints, ex­ tracting data, electron-nuclear double resonance spectroscopy, and hyperfine coupling constants (G) for unit popu­ lation of atomic orbitals calculated from Hartree-Fock atomic wave func­ tions. Close to 200 references are cited; most of them are before 1975.

The Microprocessor Controlled MODEL 707 Provides Nitrogen/ Protein Analysis... In as Little as 30 Seconds! Uses prdven chemiluminescent detection principle Microprocessor controlled for greater stability and repeatability Programmed temperature parameters Handles from 5 to 120 samples per hour

MODEL 707 Accomodates up to 1g sample size 1 nanogram sensitivity with dynamic range of 106 Extended range accessory (Model 732) allows combined nitrogen in percentage range

ANTEK® INSTRUMENTS, INC. 6005 North Freeway Houston, Texas 77076 TELEPHONE (713) 691-2265

Visit us at the Pittsburgh Conference booths 413 & 415

TWX: 910-881-1792

CIRCLE 12 O N READER SERVICE CARD

THERMOLYNE's Stir-Light is doubly useful as both a stirrer and a light source. Full stirring speed range from 60 to 1200 rpm plus evenly diffused cool light for positive end point determination. Also available as stirrer only. Contact your Lab Supply Dealer

SYBRON "mermolyne

Here's a dependable B f tway V / « νΆ to I>I^^^^BM^^^B HU^gfl^M^^^B

stir, observe and analyze.

Ik. *~"~

J^^Hgga ^Ê

BE*.

Hfcw

^B

—-·β|

JHp1*- .i."^K

It

^IBK|

9 |^l· I I

CIRCLE 2 0 4 O N READER SERVICE CARD

268 A · ANALYTICAL CHEMISTRY, VOL. 51, NO. 2, FEBRUARY 1979

Blood Drugs and Other Analytical Challenges. Eric Reid, Ed. xi + 355 pages. John Wiley & Sons, Inc., 605 Third Ave., New York, N.Y. 10016. 1978. $47.50 Evolved from the Bioanalytical Forum held in Sept. 1977 at the Uni­ versity of Surrey, this book empha­ sizes chromatography with sample preparation as an underlying theme. The contents include gas chromatog­ raphy—capillary and packed columns, detectors, and derivatization; mass spectrometric methods—GC-MS, negative-ion MS, and H P L C - M S ; and HPLC, TLC, and nonchromatographic methods—ion pair operation, electrochemical detection, sample handling, derivatization, and choice of approach. A special feature is a section on notes and comments related to the foregoing topics made at the Forum on which this book is based, together with supplementary material. T h e upto-date references include some pub­ lished in 1978.

Statistics. R. F. Hirsch, Ed. viii + 308 pages. Franklin Institute Press, Box 2266, Philadelphia, Pa. 19103. 1978. $21 Eleven authors contributed to this 1977 Eastern Analytical Symposium series monograph, which offers guid­ ance in the application of modern techniques of experimental design and statistical analysis. T h e book's four parts deal, respectively, with experi­ mental design; basic statistical analy­ sis; techniques for analyzing larger quantities of chemical data—factor analysis, pattern recognition, and cluster analysis; and the ultimate dis­ position of analytical data.

B H

Thermolyne Corp., a subsidiary of Sybron Corp., 2555 Korper Blvd., Dubuque, IA 52001

Books

' .ai™ j

Applications of Inductively Coupled Plasmas to Emission Spectroscopy. R. M. Barnes. Ed. vii + 1 8 8 pages. Frank­ lin Institute Press, Box 2266, Philadel­ phia, Pa. 19103. 1978. $18.95 This 1977 Eastern Analytical Sym­ posium series monograph, contributed to by 16 chemists, contains eight invit­ ed application papers. Topics covered