Isoproturon-desmethyl, 100µg/ml in ACN, 5ml

2,6,7-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene

L-PFHxS with branched isomers (Potassium Salt), 50µg/ml in MeOH, 1,2ml

25-Hydroxy Vitamin D2-d6, 1mg