Development and validation of a multi-residue method for the analysis of brominated and organophosphate flame retardants in indoor dust

• PBDEs and OPFRs were analysed in dust samples by one injection only, except for BDE 209.
• The most efficient sorbent for OPFRs purification was found to be Envi-Carb cartridge.
• LORs were 6.2–1000 ng/g and 0.14 −1100 ng/g for OPFRs and PBDEs, respectively.
• Validation studies showed the good accuracy and reproducibility of the method.
• SRM and real dust samples were analysed, with >50 detection frequency for most compounds.