Perchlorate Level 2

2,3,4-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL,

Ametoctradin, 50mg

1,1,1-Trichloro-2,2-bis[4-chloro(13C6)phenyl]ethane, 1.2mL x 100ug/mL, nonane