A Handheld Colorimeter .••in a water test kit! Now from Hach—a pocket colorimeter that will give you instant test results—with out the errors of color comparisons. For example, imagine an accurate chlorine test you can do right on site in minutes. The complete test set, including reagents and apparatus in a durable lightweight case, is only $145.00. The new DR-100 pocket colorimeter is also available for 19 additional water parameters, each with direct readout in concentration.
Ammonia Chlorine
HACH COMPANY P.O. Box 389 Loveland, CO 80537
CIRCLE 97 ON READER SERVICE CARD
PCR@U ©gPCR
Pistolpet™ Solvent Unit Handles All Reagents* Autoclavable Unit « Ideal for All / * Sterile f Dispensing I
New precision dispensers mount directly on almost all standard chemical bottles. Unique design gives great stability. Reagent being dispensed comes into contact with only tef lon and glass in Solvent Unit. Autoclavable Unit constructed of polyproplene, glass and silicone. Supplied with 16 oz. 38 mm neck bottle. Available: adapter kit to fit 28 or 33 mm bottles, and undercounter remote dispensing attachment. ·Ε.,Ο»ΙΚ
Use reader service card for more information or call 8 0 0 - 5 2 5 - 5 9 4 0 Available DR 100 Test Kits. Nitrate High Range Nitrate Low Range Nitrite High Range Hexavalent Chromium Nitrite Low Range COD HiRh Range* Phosphate COD Low Range* Silica High Range Copper Silica Low Range Cyanide Sulfate Fluoride Zinc Hydrazine Iron 'reagents separate Manganese
Repeating Dispensers?
PCK KfcStΑΚΟΗ CHEMICALS, INC.
PCR PRODUCTS A general catalog listing physical properties and prices is available, free. This catalog lists: Organofluorine Compounds Crown Ethers Organosilicon Compounds Synthetic Reagents Derivatizing Reagents Fine Organic Intermediates Mass Spec Standards Terpenes N M R Reference Compounds If y o u are interested in any of the above products, y o u should have y o u r o w n copy of our catalog. Write or call for your free copy today.
PCR RESEARCH CHEMICALS, INC. P.O. BOX 1778 GAINESVILLE, FLORIDA 32602 (904) 376-7522 j ^ ^ ^ O R e A N I C C H E M I C A L S DIVISION. S C M C O R P O R A T I O N CIRCLE 170 ON READER SERVICE CARD 1122 A · ANALYTICAL CHEMISTRY, VOL. 53, NO. 9, AUGUST 1981
Pistolpet™ 0.8 ml capacity · 8.5 ml capacity 20 ml capacity
Manostat! For complete bulletin, contact Manostat 519 Eighth Ave., New York, N.Y. 10018 « T e l : (212) 594-6262 Or ask vour dealer CIRCLE 139 ON READER SERVICE CARD
Direct Digital S Readout Pipet? Digipet...
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is c a p a b l e of dispensing as little as 0.0002 μ\ and is the most accurate dispenser available. The newly redesigned case is comfortable for use as a hand held unit or is available mounted on a stand for use as a buret. Both units feature an easy reset digital direct readout.
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Manostat! For complete bulletin, contact Manostat 519 Eighth Avenue New York, N.Y. 10018 Tel: (212) 594-6262 Or ask your Dealer CIRCLE 140 ON READER SERVICE CARD
