If you had to choose just one publication... - ACS Publications

other major journal in the world. You'll welcome its biweekly offering of both defini- tive articles and concise, timely communications. You'll get pr...
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Spectrofluorometric Determination of Tetrahydro-6oxo-3-Pyridazine Carboxylic Acid (PCA) with o-Nitrobenzaldehyde PCA reacts with o-nitrobenzaldehyde in alcoholic KOH to form a product which fluoresces in acid. The reaction permits the determination of PCA in a microbial medium. THOMAS A. LaRUE, Prairie Regional Laboratory, National Research Council, Saskatoon, Saskatchewan, Canada

Anal. Chem., 42, 541 (1970)

naturally, it would be the Journal of the American Chemical Society...

Correspondence Gas Chromatographic Determination of Plasticizers in Propellant Compositions

This internationally respected biweekly journal ranks number one in the field of chemistry .

F. I. H. TUNSTALL, Explosives Research and Development Establishment, Waltham Abbey, Essex, England

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Since 1879 It has been presenting significant original research that cuts across ALL chemical research areas. It Is the only ACS research journal designed to appeal across the board. Despite the highest manuscript rejection rate among ACS journals, JACS published 8100 pages in 1969 alone. The JACS subscriber pays less per page than for any other major journal in the world. You'll welcome its biweekly offering of both definitive articles and concise, timely communications. You'll get prompt reports on important results. To order the Journal of the American Chemical Society, just complete and return the form below.

Anal. Chem., 42, 542 (1970)

Effects of Micropores on Peak Shape and Retention Volume in Gas-Solid Chromatography H. W. HABGOOD and W. R. MacDONALD, Research Council of Alberta, 11315—87th Avenue, Edmonton 7, Alberta, Canada Anal. Chem., 42, 543 (1970)

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Aids for Analytical Chemists

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An Automatic Gas Sampling Device DAVID C. WEBER and EDWARD J. SPANIER, Department of Chemistry, Seton Hall University, South Orange, N. J.

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Please send me the Journal of the American Chemical Society at the following subscription rates: ASC members: U.S. $22 Canada, PUAS $26.50 Other nations $27.50

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07079 Anal. Chem., 42, 546 (1970)

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The Tubular Carbon Electrode W. D. MASON and CARTER L. OLSON, College of Phar-

macy, The Ohio State University, Columbus, Ohio 43210 Anal. Chem., 42, 548 (1970)

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Optical Ring-Disk Electrode System J. E. McCLURE, Research Service Department, American Cyanamid Co., Stamford, Conn.

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Anal. Chem., 42, 551 (1970) ANALYTICAL CHEMISTRY, VOL. 42, NO. 4, APRIL 1970

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