Acenaphthene-d10 has been used as internal standard in the determination of pesticides in rice samples using a suitable multi-residue method such as quick, easy, cheap, effective, rugged and safe (QuEChERS) sample preparation method combined with gas chromatography coupled with mass spectrometry analysis. It can also find applications as a polycyclic aromatic hydrocarbon surrogate in the analysis of polycyclic aromatic hydrocarbons in soil, river water and sediments using gas chromatography coupled with mass spectrometry (GC-MS).