Analysis of pesticide residues using the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) pesticide multiresidue method in traditional Chinese medicine by gas chromatography with electron capture detection

► For sample preparation, QuEChERS was used. ► The present work shows the results to quantify fifteen organochlorine pesticides. ► This is a report about the application of the QuEChERS method in traditional Chinese medicine.