lifetimes count suddenly, you've got the next century's answers!

S -" 0 · ; 1. LIFETIMES COUNT. PRA understands how important fluorescence lifetime measurements are. ... YOU'VE GOT ... 0003-2700/79/0351-063A$01.00/...
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Regulations

Better Environmental Analytical Results

Warren Crummett Dow Chemical Co. U.S.A. Midland, Mich. 48640

In a 1978 report entitled "Cleaning Our Environment: A Chemical Perspective," T h e American Chemical Society Committee on Environmental Improvement stated t h a t " t h e cause of improving our environment cannot be advanced rationally unless the results of environmental measurements are correct and legally defensible." Among the recommendations advanced in support of this position is: "Analytical scientists must take the initiative in developing and promul-

gating standards for individual proficiency and for the determination of precision and accuracy, limits of detection, proof of presence of specific substances in environmental samples, and related aspects of quality assurance." To implement action on its own recommendation the Committee on Environmental Improvement appointed a Subcommittee on Environmental Analytical Chemistry with instructions to develop "Guidelines for Data Acquisition and Data Quality Evaluation in Environmental and Trace Analytical Chemistry." T h e scientists serving on this subcommittee are: Francis Amore, Henkel Corp.; Warren Crummett,

Chairman of the subcommittee, Dow Chemical Co., U.S.A.; Henry Freiser, University of Arizona; David Freeman, University of Maryland; Robert Libby, Procter & Gamble; Herbert Laitinen, University of Florida; Wendell Phillips, Campbell Soup Co.; Michael Reddy, State of N.Y., Dept. of Health; J o h n Taylor, National Bureau of Standards. T h e subcommittee has worked through the ACS Department of P u b lic Affairs and has had considerable help from David Wimert and Robert Smerko of t h a t office. It has also enjoyed special consultation with Lloyd Currie of T h e National Bureau of Standards and Richard Hummel,

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SUDDENLY, YOU'VE GOT THE NEXT CENTURY'S ANSWERS!

LIFETIMES COUNT PRA understands how important fluorescence lifetime measurements are. Use the ONE technique that gives you the highest confidence in your results.

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0003-2700/79/0351-063A$01.00/0 © 1979 A m e r i c a n C h e m i c a l S o c i e t y

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ANALYTICAL CHEMISTRY, VOL. 52, NO. 1, JANUARY 1980 · 63 A