TEMPERATURE CONTROL FOR LC COLUMNS

Proved analytical system, e.g. IR. Photometer BINOS® · Automatic weight correction ... variety of laboratory appli- cations. bas BIOANALYTICAL. SYST...
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CS: Quick, reliable and accurate determination of the carbon and sulphur contents of metals! LEYBOLDHERAEUS has the best solution for you: Automatic Analyzers that rapidly and reliably determine C and S as well as N2,02, and H2. The analyzers are provided with adequate physical and electronic capability for use in laboratories and quality control centers of metal industries. CSA 2002 - the approved solution!

omitted again in this edition. Supercritical fluid chromatography is a recently reported method that should be covered in a future edition. However, these shortcomings are balanced by thoroughness in other areas. The dictionary should be valuable for beginners in the field and for students of analytical chemistry.

Books Received Mass Spectrometry Advances 1982. Parts A and B; Parts C and D. E. R. Schmid, K. Varmuza, I. Fogy, Eds. xli + 544 pp.; xvii + 461 pp. Elsevier North-Holland, Inc., 52 Vanderbilt Ave., New York, N.Y. 10017. 1983. $361.75/set

TEMPERATURE CONTROL FOR LC COLUMNS Temperature control in liquid chromatography has generally been neglected. Improved resolution, efficiency, and precision often result from operation of LC columns at controlled temperatures above ambient.

Encyclopedia of Chemistry. Sybil Parker, Ed. viii + 1195 pp. McGraw-Hill Book Co., 1131 Avenue of the Americas, New York, N.Y. 10020. 1983. $49.50 Advances in Magnetic Resonance. Vol. 10. John Waugh, Ed. xi + 223 pp. Academic Press, Inc., 111 Fifth Ave., New York, N.Y. 10003. 1983. $35 Biologie De L'Action Des Rayonnements Ionisants. Christiane Ferradini, Jacques Pucheault. ix + 213 pp. Masson, 120 Bd. St-Germain, 75280 Paris Cedex 06. 1983. 150 F L'Analyse Biochimique Quantitative Par Nanochromatographie En Couche Mince. Michel Bounias. 198 pp. Masson, 120 Bd. St-Germain, 75280 Paris Cedex 06. 1983. 160 F Synthesis and Applications of Isotopically Labeled Compounds. William Duncan, Alexander Susan, Eds. xxviii + 508 pp. Elsevier Scientific Publishing Co., 52 Vanderbilt Ave., New York, N.Y. 10017. 1983. $110.75 CSA 2002 features & specifications: • Proved analytical system, e.g. IR Photometer BINOS® · Automatic weight correction · Simple operation • Compact construction • Measurement range [%]: 0.0001 - 6.0 (C); 0.0001 - 0.4 (S) • Accuracy [%]: ± 0.0002 abs. (C), ± 1 rel. (C) ± 0.0003 abs. (S), ± 3 rel. (S) • Analysis time [s]: 40 ALPHA RESOURCES INC. 3090 Johnson Road - Stevensville - Mich. 49127 - USA

LEYBOLD-HERAEUS GMBH P.O.Box 1555 • D-6450 Hanau

Gas and Liquid Analyzers. Jaroslav Vana. 742 pp. Elsevier Science Publishing Co., Inc., 52 Vanderbilt Ave., New York, N.Y. 10017. 1982. $170.25 Chromatography and Mass Spectrometry in Biomedical Sciences, 2. Alberto Frigerio, Ed. xi + 506 pp. Elsevier Scientific Publishing Co., Inc., 52 Vanderbilt Ave., New York, N.Y. 10017. 1983. $106.50 Biological and Environmental Aspects of Chromium. Sverre Langard, Ed. ix + 285 pp. Elsevier Scientific Publishing Co., Inc., 52 Vanderbilt Ave., New York, N.Y. 10017. 1982. $85

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774 A · ANALYTICAL CHEMISTRY, VOL. 55, NO. 7, JUNE 1983

Bioanalytical Systems offers a low cost column heating system based on a metal block heater and solid state controller. The versatile controller can be used with other heating elements and probes for a variety of laboratory applications.

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Purdue Research Park 1205 Kent Avenue West Lafayette, IN 47906 (317) 463-2505 >> CIRCLE 31 ON READER SERVICE CARD