National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Triorthocresyl phosphate may be a minor component in a product containing numerous isomeric tricresyl phosphates. When dealing with such products, it must be verified that the chromatographic parameters employed result in separation of the triorthocresyl phosphate isomer from the other tricresyl phosphate isomers. ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Use of an internal standard is recommended to minimize errors caused by sample solvent evaporation and FPD response variations. d. Prepare a calibration graph of area vs. μg of triorthocresyl phosphate per 10 mL of sample. Determine recovery in the concentration range of interest for each lot of filters used for sampling. Prepare three filters at each of five levels plus three media blanks. a. Spike aliquot of calibration solution onto each filter. b. After air-drying, extract filters with 10 mL diethyl ether (steps 5 through 7) . c. Analyze together with working standards (steps 11 and 12) . ”
National Institute for Occupational Safety and Health, NIOSH Manual of Analytical Methods… (1994)
“ Willis, T., Optimizing the Quantitative Gas Chromatographic Analysis of Aryl Phosphate Isomers, LC-GC, 11 (7) :510 (1993) . [4] Willis, T., and Hathaway, R., Structural Influences on the Separation of Aryl Phosphate Isomers Using Wide-Bore Capillary Gas Chromatography, LC-GC, 9 (3) :220 (1991) . [5] Krishnamurthy, M., Rajalakshmi, S., and Kapur, O., Detection of Tricresyl Phosphates and Determination of Tri-o-Cresyl Phosphate in Edible Oils, J. Assoc. Off. Anal. Chem., 68 (6) : 1074 (1985) . ”
