Internal & Surrogate Standard 8260B

Fensulfothion, 100 µg/ml, Toluene, 1ml

2,4,6-Tribromoanisole-d5,100 µg/mL,MeOH,1mL

2,3',4,5,5'-Pentachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane