Editors' Column
cost of $265.00 (including binders) from the printer, Sadtler Research Laboratories, 3316 Spring Garden Street, Philadelphia, Pa. 19104. For further information, contact Dr. A. Lee Smith, Spectroscopy Labora tory, Dow Corning Corp., Midland, Michigan 48641. Editor in Absentia
"As this is being written, I am beginning a six-months stay in Eu rope on a sabbatical leave of ab sence from the University of Illi nois. There may be some questions as to the changes in procedure and responsibility brought about by this circumstance. During the past few years, we have worked toward increasing the degree of responsibility of the Washington staff, particularly its senior members. The promotions of Dr. John K. Crum to Managing Editor and of Mrs. Virginia Stewart and Mrs. Josephine Pechan to As sociate Editors became effective on January 1, 1969 (see Chem. Eng. News, 4 7 , (1), 64 (January 6, 1969)). With the aid of the Ad visory Board, the file of reviewers in each specialty has been revised and enlarged. Accordingly, it has become possible to handle the ma jority of manuscripts, namely those receiving favorable reviews and re quiring only moderate revision, with only an occasional suggestion by the Editor. For the next several months, a procedure has been worked out to avoid delays and yet to keep me posted on reviewer's comments, and to permit me to exercise my final responsibility for the contents of each issue. I t is hoped thereby that the service to our readers will not be adversely affected by my absence. In return, it is my hope to gain fresh insights into the status of analytical chemistry in other countries, and to pass some of these along." Herbert A. Laitinen Albujeira, Portugal February 8, 1969
Ultra-sensitive analysis has its price.
20 Here's the fast, low-cost way to get an ultra-sensitive analysis for the ele ments present in a sample. It's Gulf General Atomic's ACTIVATION ANALY SIS SERVICE. Take a look. COST: A typical one-element, non-destructive analysis costs $20 per sample, in quantity. Some are as little as $6 per sample. METHOD: Samples are irradiated in one of Gulf General Atomic's TRIGA® reactors (reactor core shown above). The induced radioactivities are then identified and measured quantitatively, and the data are processed in GGA's computer center. SENSITIVITY: Limits of detection for over 70 elements range from lO^g to 10~* μg. Median sensitivity is approximately 1 0 ^ 3 μς (0.001 ppm in a one gram sample). PRECISION & ACCURACY: Typical accuracy in a routine analysis is ±2-4% of the value, with a precision in the range of ±1-3% of the value. SAMPLES: The technique is applicable to the analysis of virtually every con ceivable solid or liquid material, including ores, semiconductors, petroleum, water, polymers, solvents, biological tissues, and agricultural products. Most analyses can be performed without destroying the sample. CAPABILITIES: GGA's Activation Analysis Service is the largest, most com prehensive service of its type in the world. Analyses have been performed for over 600 organizations in the past eight years. Major facilities include three TRIGA reactors, several electron linear accelerators and neutron gen erators, and a UNIVAC 1108 computer. GET SPECIFIC DETAILS in terms of your analytical problem. Write to Acti vation Analysis Service, Dept. 302,Gulf General Atomic, P.O. Box 608, San Diego, California 92112. Or phone 714/453-1000, Ext. 327. Circle No. 45 on Readers' Service Card
General Atomic
