Multi-Element Sol.1, 10µg/mL in 5%HNO3 /H2O, 100ml

1,2-Dichloronaphthalene,50 µg/mL,isooctane,1mL,

1,2,3,4,6,7,8-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

Metsulfuron methyl