PlfkAIt ...any number, and well shoot you the facts on: Nanograde" Solvents—Special ly purified solvents for pesticide residue analyses, and other microanalytical applications where extremely low levels of non-volatile impurities are important. SpectrAR* Solvents — Spectrophotometry solvents that satisfy the need for extremely high purity in spectrophotometric and chromatographic techniques. ScintillAR Chemicals—Proprie tary solutions and cocktails, as well as solvents and fluors for preparing counting mixtures. Prepared and use-tested to assure properties of low background, optical transparency, and freedom from quenching for efficient counting of 14 C and 3H. Solvents in AR-CAN™ Containers Meet OSHA Requirements — Includes ARR grade solvents as well as general laboratory solvents.
Liquid Chromatography Solvents— Mallinckrodt's new line of ChromAR" solvents are especially purified for use in liquid chromatography. Chem-SolV—Heavy-duty glassware cleaner. Provides the effectiveness of chromic acid mixtures without the acid hazard. ChromAR R S h e e t — Remarkably v e r s a t i l e TLC medium c o n t a i n s 70% silicic acid matted with microglass fibers and white 254 nm UV phosphor which does not interfere with d e t e c t i o n of c o m p o u n d s fluorescing under long-wave UV. Self-Indicating Gas Absorbents — Superior, indicating moisture and CO2 absorbents. High absorpLABORATORY
GUIDE
tive capacity and efficient vapor removal from gases: Aquasorb" for moisture; Mallcosorb R for CO2. Amberlite* Ion Exchange Resins — Twenty-six Amberlites to choose from, including t h r e e nonionic polymeric absorbents and a liquid ion exchanger. •Track:
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General Laboratory Solvents— A new line for use where the demanding specifications of ARR purity are not necessary, but where a favorable balance of economy and quality is the primary consideration. Packaged in AR-CAN™ c o n t a i n e r s to meet OSHA requirements.
Plasticware Catalog—Thirty-two page illustrated catalog covers the complete line of Mallinckrodt's expanded line of laboratory plast i c w a r e items. All are rust and corrosion proof. All items made of polypropylene are also autoclavable. Current Lab Chemicals Catalog —New AR* Laboratory Chemicals Catalog gives full information on Mallinckrodt's greatly expanded lines of organic chemicals, spectrophotometric solvents and scintillation grade chemicals. Includes up-to-date safety section covering over 175 hazardous chemicals.
The label you can trust... Mallinckrodt SCIENCE PRODUCTS DIVISION St. Louis, M o . 63160 AUGUST 1973 131 LG
