A Simple Method of Improving Sensitivity in the Infrared Determination of Sulfate
Abstract:When alkali metal sulfates were ground with a slight excess of lead nitrate before incorporation in potassium bromide discs, the intensity of the S → O stretching frequency of 1115 cm−1 was increased about tenfold. In the determination of alkali metal sulfates by infrared methods in this laboratory, sensitivity had been limited by the fact that their molar absorbances in 13-mm diam. potassium bromide discs were of the order of 103 moles−1.
Document Type: Short Communication
Affiliations: 1: Savannah River Laboratory, E. I. du Pont de Nemours & Co Aiken, South Carolina; present address: U. S Atomic Energy Commission, Oak Ridge Operations Office, Oak Ridge. Tenn. 2: Savannah River Laboratory, E. I. du Pont de Nemours & Co Aiken, South Carolina