Nitrite (NO2-) as N

2H,3H-Perfluorohex-2-enoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 37759-76-5

Atrazine desethyl, 100µg/mL in MeOH, 1ml

2,3,4,5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,