NOVA Automated ISE Analyzers • R e d u c e t h e c o s t of ISE a n a l y s e s by 5 0 % - 9 0 % • A s s u r e consistently accurate analytical performance
The Available Parameters: Ammonia, Calcium, Chloride, Cyanide, Fluoride, pH/Conductivity, Nitrate, Sodium/Potassium, Water Hardness One, two, three or four channel combinations are available The Instrument: NOVA chemistry analyzers completely automate ISE (ion selective electrode) methods. These instruments are extremely simple to operate, produce results up to 10 times faster than ISE analyses d o n e manually and dramatically decrease costs. In addition, a microcomputer monitors and controls total instrument operation, eliminating all operator errors and operator-tooperator variations. There is a continuing d e m a n d on today's chemistry laboratory to increase productivity and improve analytical results while ! simultaneously reducing costs. NOVA chemistry analyzers \ are designed specifically to meet these objectives. \ Contact NOVA for more information on this next evolution in ISE instrumentation.
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CIRCLE 152 ON READER SERVICE CARD
Petroleum in the Marine Environment
A carefully balanced presentation of analytical methodology and application that will be of major interest to environmentalists and energy c o n s e r v a t i o n i s t s .
Particulates in Water Characterization, Fate, Effects, and Removal ^ Μ Β Β Η Μ Β Η Β Η Η Η Β Η Η Η Μ Β Β Μ
In this volume prominent chemists, marine ecologists, microbiologists, and toxicologists bring together for the first time the most important and most pertinent analytical techniques for the complex issues involved in this field.
ftaii·**-" Advances in Chemistry Series No. 185 Leonidas Petrakis, Editor Gulf Research & Development Fred T. Weiss, Editor Shell Development Company A symposium jointly sponsored by the Divisions of Petroleum and Analytical Chemistry of the American Chemical Society.
CONTENTS The Biogeochemistry of Fossil Fuel Hydrocarbons · Analytical Chemistry of Petroleum · Oil Spill Identification and Remote Sensing · Determination of Aromatic Hydrocarbons in Zooplankton and Macrofauna « High Resolution Gas Chromatography · Polynuclear Aromatic Hydrocarbons in Environmental Samples · Solubility Behavior of Polycyclic Aromatic Hydrocarbons · Multiple Gas-Phase Equilibration Method · Nonhydrocarbons in the Analysis of Virgin and Biodegraded Petroleum · Application of Trace Analytical Techniques · Analysis of Oily Water • Hydrocarbons in the Sediments of the Elermuda Region · Polycyclic Aromatic Hydrocarbons in Marine/Aquatic Sediments · Ambient-Temperature Extraction of Hydrocarbons from Marine Sediment · Distribution of Aromatic Hydrocarbons in Sediments from Selected Areas · Comparison of Methods for Analysis of Hydrocarbons in Marine Sédiments 371 pages (1980) Clothbound $49.95 LC 79-25524 ISBN 0-8412-0475-6 Order from: American Chemical Society Distribution Office — 07 1155 Sixteenth St., N.W. Washington, D.C. 20036 or CALL TOLL FREE 800-424-6747 and use your credit card.
This 16-chapter volume provides an ex cellent forum for various specialists to exchange ideas, methods, and models used to investigate the fate and effects of particulates and their associated materi als in various aqueous environments.
A d v a n c e s in Chemistry Series N o . 189 Michael C. Kavanaugh, Editor James M. Montgomery, Consulting Engineers, Inc. James O. Leckie, Editor Stanford University Based on a symposium sponsored by the Division of Environmental Chemistry of the American Chemical Society.
CONTENTS Topics include the characterization of surface chemical properties of oxides in natural waters; redox coprecipitation mechanisms of man ganese oxides; adsorption reactions of nickel species at oxide surfaces; and poliovirus ad sorption on oxide surfaces. A mathematical model for simulation of the fate of copper in a marine environment and a review of interac tions between marine zooplankton and sus pended particles are included. Prediction of oceanic particle size distributions from coagu lation and sedimentation mechanisms, charac terization of particles in digested sewage sludge, and an integral water treatment plant design are discussed. 401 pages (1980) LC 80-19663
Clothbound $59.95 ISBN 0-8412-0499-3
Order from: American Chemical Society Distribution Office — 36 1155 Sixteenth St., N.W. Washington, D.C. 20036 or CALL TOLL FREE 800-424-6747 and use your credit card.
ANALYTICAL CHEMISTRY, VOL. 55, NO. 7, JUNE 1983 · 775 A
