SEDL / STP / STP949-EB / STP19438S

Specimen Preparation for Microinfrared Analysis

Humecki, HJ
Senior research chemist, McCrone Associates, Inc., Westmont, IL

Pages: 10    Published: Jan 1987

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Abstract

Improved sensitivity of detectors and more powerful computers have extended the useful limits of infrared spectroscopy downward to the nanogram level. The analyst must adopt the techniques of the microscopist in preparing these tiny specimens for analysis if he is to take full advantage of these advances. Some techniques are described for dealing with small specimens, including transferring nanolitre quantities of liquids to a salt window and preparing spectra pyrolyzates from filled and pigmented polymer specimens of less than 1 µg.