4-Hydroxybenzoic acid, 1000mg

Trixylyl phosphate, purified ion m/z 382 (tetramethyl),100 µg/mL,isooctane,1mL,

4-n-Nonylphenol, 100µg/ml in MeOH, 5ml

Labelled-compound Spiking Solution Dioxin-like F-PCBs each in 20ng/mL solution in n-nonane; unit: 1x1mL Chiron No. Dioxin-like IS, FluoroPCBs PCB No. 2863.12 5-F-3,3’,4,4’-TetraCB F-PCB-77 2344.12 3’-F-3,4,4’,5-TetraCB F-P