Compound Target Ion m/z Target Ion m/z tr(min) r2 1,4-dichlorobenzene (IS) 152 150, 115 8.89 N/A Propoxur 110 152 17.49 0.987 Transfluthrin 163 91, 335 20.71 0.988 Bioallethrin 123 79, 136 22.53 0.994 Cyfluthrin 206 226 31.84 0.999 Cypermethrin 181 209 32.99 1.000

Table 2: Target and qualifier ion(s), retention times (tR), and coefficients of determination (r2) for parent pesticides in dust.

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