Now! Turn your sulphuric acid
"OBottoGyTH**rER.
instantly into an efficient labware cleaner!
CHROMERGE mixes easily with sulphuric acid to clean safely, speedily. Just pour one pre-measured bottle of Chromerge into a 9-lb. container of sulphuric acid, for a super-efficient chromic-sulphuric acid solution that removes stubborn deposits which resist other cleaners! Chemically and bacteriologically clean ...protects glass surfaces...gives a perfect miniscus for precise volumetric work! 19-089-01 6x25cc $7.98 Case/4 per p a c k a g e — $28.80 Circle No. 71 on Readers' Service Card
new stopped-flow spectrophotometric system
incorporating the Aminco-Morrow Stopped-Flow Apparatus and the New Aminco Grating Monochromator
• Permits reactions to be monitored after only 3 to 5 milliseconds' dead time • Utilizes quantities as small as 100 μ\ from each of the two reservoirs • Allows reactants in reservoirs to be changed quickly and easily without tools Other systems are available which incorporate the very versatile Aminco-Morrow Stopped Flow Apparatus and utilize instrumentation already in your laboratory. For further information about rapidreactions instrumentation write to
AMINCO
AMERICAN INSTRUMENT
COMPANY
A DIVISION OF TRAVENOL LABORATORIES, INC. Silver Spring, Maryland 20910 Circle No. 9 on Readers' Service Card
ANALYTICAL CHEMISTRY, VOL. 43, NO. 1, JANUARY 1971
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95 A
