Matrix total dissolution concatenated solid phase extraction for determination of phthalate esters in polyester fibers prior to UPLC-MS/MS
Objective An analytical method for triphenyl phosphate and triphenylphosphine oxide in polyester fibers was explored.Methods The sample matrix was dissolved by the complete dissolution method,and then the extracted sample solution was further cleaned up using a commercial solid-phase extraction column PEP-2.UPLC-MS/MS technique was used for the determination of two organophosphate flame retardants in five polyester fiber samples.Results Under the optimized conditions,satisfactory linearity was achieved with the correlation coefficient(r)greater than 0.995 8,and the sensitivity of the method was high.The method limits of detection of triphenyl phosphate and triphenylphosphine oxide were 0.08 ng·g-1 and 0.014 ng·g-1,respectively.The spiked recoveries of triphenyl phosphate and triphenylphosphine oxide ranged from 80.2%to 104.6%,and the RSD of method precision was less than 8.8%.Conclusion The above results indicated that the established analytical method was precise,accurate,without matrix interference,reliable and stable,providing a novel strategy for the analysis of trace contaminants in this type of matrix.
万方数据
维普
