INFRARED SPECTROPHOTOMETER
ACCESSORIES DISPOSABLE WINDOWS AND HOLDER
W I C K - S T I C K ™ is a simple, easy method for infrared analysis of TLC samples. It is a prepressed KBr triangular shaped element which fil ters silica gel from the TLC sample and concentrates the sample on the "Wick-Stick" tip, which is then removed, pressed into a micro-pellet and analyzed on an IR spectrophotometer. "Wick-Sticks" are available from stock. Kit contains vials, "Wick-Stick" holders, vial rack and tweezers.
Potassium Bromide Micro-Pellet Die is forthose laboratories that already have a hydraulic press. This die presses pellets approximately 4 mm in diameter. Pellet remains in a portion of the die for convenient infrared analysis. Pressed Pellet Micro Press is for those laboratories without a hy draulic press. Ideal for work with "Wick-Sticks" and other pressed pellet powders. Presses pellet approximately 1.5 mm in diameter into a Vz" diameter washer for immediate infrared analysis.
are ideal for infrared anal ysis of hard-to-clean sam ples. These AgCI windows measure 25 mm χ 12.7 mm χ 0.5 mm. Inexpensive, unbreakable, resistant to thermal shock.
MULL PLATES AND HOLDER Sodium chloride mull plate kit is now available. Kit contains mull plate holder and one dozen %" diameter χ 4 mm thick mull plates.
Pressed Pellet Powders, available from stock, include Potassium Bromide, Thallium Bromide and Cesium Iodide.
INFRARED W I N D O W S are a Harshaw specialty. All the crystals now being used as cell windows in infrared spectro photometers were developed in the Harshaw Research Labora tories. For any portion of the spectrum covered by your instru ment, you have a choice of several different infrared crystals. Available as polished windows or as unpolished blanks. Windows for standard IR spectrophotometer cells are in stock and can be shipped within 3 days after the receipt of your order.
HARSHAW
The Harshaw Chemical Company · Division of Kewanee Oil Company Crystal-Solid State Department 1945 East 97th Street · Cleveland, Ohio 4 4 1 0 6 · Phone 216-721-8300
CIRCLE 112 ON READER SERVICE CARD 18 LG AUGUST 1973
LABORATORY GUIDE
