Publications by authors named "Kangcong Li"
Article Synopsis
- - Tripropyl phosphate (TnPP) is a widely used flame retardant found in textiles, plastics, and coatings, with its residues often detected in environmental and food samples.
- - A study evaluated a certified reference material (CRM) for TnPP's purity using mass balance (MB) and quantitative nuclear magnetic resonance spectroscopy (qNMR), revealing structural impurities and determining its purity to be approximately 994.1 mg/g.
- - The verified CRM has an expanded uncertainty of 3.4 mg/g, making it suitable for preparing calibration solutions to monitor TnPP levels in plastics and food, ensuring accuracy in testing.
Organophosphorus flame retardants (OPFRs) have been widely used in polymeric materials owing to their flame retardant and plasticizing effects. Investigating the fragmentation pathway of OPFRs is of great necessity for further discovering and identifying novel pollutants using orbitrap-based high-resolution mass spectrometry (HRMS). A total of 25 OPFRs, including alkyl, halogenated, and aromatic types, were analyzed in this study.
View Article and Find Full Text PDFOrganophosphorus flame retardants (OPFRs) have emerged as good alternatives to brominated flame retardants, the use of which is globally restricted. In this study, a screening method based on QuEChERS-gas chromatography-quadrupole time-of-flight mass spectrometry (GC-Q-TOF/MS) was established for the determination of 21 OPFRs in rice. First, full scan (scanning range, 50-450) was performed with a mixed standard solution of the 21 OPFRs (0.
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