2,2'-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane

Glufosinate ammonium, 10µg/mL in Water, 10ml

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K

Oxytetracycline, 96%,1000 µg/mL,acetonitrile,1mL,