ULTRA PURE ACIDS • Double sub-boiling distilled in Quartz.
Uncompromising Quality for Pesticide Residue Analysis
• Produced under CLASS 100 clean room conditions. • Certificate of Analysis. • The world's highest purity acids available commercially.
B&J Brand High Purity Petroleum Ether meets the most demanding standards for pesticide residue analysis and gas chromatography. Consistent, reliable purity eliminates interfering background peaks, assures accurate results. Call or write for details on B&J Brand Petroleum Ether and other high purity solvents for trace analysis.
• Ultra cleaned TEFLON acid containers are returnable. Low cost refills.
SEASTAR CHEMICALS
BURDICK& JACKSON
(A Division of Seastar Instruments) MANUFACTURERS OF ULTRA PURE ACIDS 2045 MILLS R O A D , SIDNEY. B.C., C A N A D A V8L 3S1 (604)656-0891 · TELEX 049-7526
LABORATORIES, INC. 1953 South Harvey Street, Muskegon, Michigan U.S.A. 49442 616-726-3171 Subsidiary of American Hospital Supoly Corporation
CIRCLE 13 ON READER SERVICE CARD
CIRCLE 189 ON READER SERVICE CARD
RAPID FLOW ANALYZER
The Third Generation of Continuous Flow Analyzers • • • • •
Process up to 240 samples per hour Fiber optic photometer FIA or CFA operation Ultra low maintenance Low reagent usage
THIS IS IT
A L R E A D Y IN G R E A T D E M A N D ! Reserve your system now: 800-547-6275
THE ONLY STOPPERWITH ITS O W N EXTRACTOR, A TEFLON STOPPER FROM SAFE LAB 9
ALPKEM Corporation Clackamas, Oregon 97015
ALPKEM®
Phone(619)448 9100
SAFE LAB Inc. 10020 Prospect Ave. -A15- Santee.CA 92071 (& S a f e Lab Inc.1984
CIRCLE 2 ON READER SERVICE CARD
-TEFLON
Regd.TM.of E.I.DuPont
CIRCLE 187 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 56, NO. 13, NOVEMBER 1984 · 1487 A
