Table 1: Calibration curves and goodness of fit values.

ResidueRange (μg/mL)Raw plant material matrixGlass pipe smoke matrixWater pipe smoke matrix

Diazinon0.737–36.90.99940.99940.9997
Paclobutrazol0.437–21.90.99940.99820.9999
Bifenthrin0.072–3.620.98110.99980.9971
Permethrin 0.607–30.40.99150.99990.9999