เคมี
เอกสารมาตรฐาน
สหรัฐอเมริกา
AOCS
Cd 25a-00
Thermal Heating Fluids in Edible Oils and Oleochemicals—Dowtherm A by HPLC Coupled with Fluorescence Detector
2017
5
665.0288 AOCS 7th ed. 2017-2019 rev. Ref. (Loose-Leaves FL2)
DEFINITION This method describes a procedure for the determination of Dowtherm A™ in edible oils and oleochemicals by HPLC. The procedure does not require a pre-treatment step. SCOPE Applicable to edible oils and oleochemicals which have no interfering components that fluoresce in the same region as Dowtherm A™. The method is also applicable to other thermal heating fluids based on mixture of biphenyl and diphenyl oxide, e.g., Therminol VP-1™ (see References, 1). The method may be used either semi-quantitatively or quantitatively.