Toxic Compounds Analysis by High Performance Liquid Chromatography

MDA can be produced from the gamma-ray sterilized thermosetting polyurethane (PU) and was found about 0.6 ppm for gammaray, 0.3 ppm for moist heat and 0.10 ppm for EOG, respectively [1]. This amount is from average three specimens. The virtual safe dose (VSD) was mathematically calculated by the one-hit model. Based on the VSD of 10-6 risk, estimation of the increased cancer risk from the highest MDA level of 0.6 ppm indicated a 1x10-7 increase for 50 kg patient exposed to dialysis three times per week for 70 years.