MSNs	mesoporous silica nanoparticles
Py-MSNs	pyrimethanil-loaded MSNs
CTAB	cetyltrimethylammonium bromide
TEOS	tetraethyl orthosilicate
PSA	primary secondary amine
GCB	graphitized carbon black
SEM	scanning electron microscopy
DAD	diode array detector
HPLC-MS/MS	high performance liquid chromatography tandem mass spectrometry
QuEChERS	quick, easy, cheap, effective, rugged and safe
RSDs	relative standard deviations
LOQs	limits of quantification
MRL	maximum residue limit