Gas-Liquid Partition Chromatography. Determination of 2,6-Di-tert-butyl-p-cresol on Antioxidant-Treated Paperboard

Determination of 2,6-Di-tert-butyl-p-Cresol in Turbine Oils.

“…Total internal reflection spectrometry has found numerous applications since the technique was first proposed (8,4,6,8). In many of these applications distinct advantages are found over conventional techniques.…”

“…It was considered that an essential preliminary to the successful determination of 4M26B was a satisfactory method of separating it from the matrix, and to this end various separation techniques were tried including extraction (9), chromatography (10) and steam distillation (8,7,12). None proved adequate, but the observation that methanol added to the boiler before steam distillation gave improved recoveries led to the development of a very effective procedure, and the fact that the antioxidant was quantitatively transferred to an aqueous methanol medium considerably simplified its subsequent determination.…”

Food Antioxidants, Determination of Butylated Hydroxyanisole and Butylated Hydroxytoluene in Potato Granules by Gas-Liquid Chromatography

“…BHA (2-and 3-<ert-butyl-4-hydroxyanisole) and BHT (3,5-dikrt-butyl-4-hydroxytoluene) are used at low levels (<10 p.p.m. of both) in commercial dehydrated potato granules to protect the natural fat of the potato from oxidative deterioration.…”