m-Xylene, certified, 5ml

3,4-Dichlorobenzyl chloride,1000 µg/mL,isooctane,1mL,

2,2',4,4',5,6'-Hexabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Imidacloprid-d4, 100µg/ml in Acetonitrile, 1ml