Quantitative Determination of Tris(nonylated Phenyl) Phospite (Polygard) in Synthetic Rubber and Latex

Abstract

The most convenient method of constructing such a calibration curve is to aerate samples of the solution with known air mixtures containing 0.10, 0.20, 0.30, and 0.40% carbon dioxide (Matheson & Co., Inc.). Such solutions have true pC02's of 0.10, 0.20, 0.30, and 0.40% atm., respectively. If SUMMARY Table III, Comparison of Direct Absorption and Colorimetric Methods on Polygard Analysis Polygard Re-Std.

Rubber

“…Tris(nonylphenyl) phosphite was determined by hydrolysis and measurement at 296 µ in alkaline and neutral media (131). This is similar to the method of Nawakowski (108).…”

Determination of additives in polyethylene by absorption spectroscopy

“…The amount of lead in a sample of known volume is determined and the TEL concentration is calculated from this value. Lead may be determined by polarographic (1), chemical (ß, 6), colorimetric (7), x-ray spectrometric (5), and x-ray absorptiometric (8,4) procedures.…”