5 Analytes in Methyl tert-Butyl ether/MethanolDCAA (2,4-Dichlorophenylacetic acid). 5000 ng/mL Dinoseb . 40 ng/mL4,4'-Dibromooctafluorobiphenyl . 2500 ng/mL 4-Nitrophenol. 16000 ng/mL