FDA pesticide GC/LC no. 5

S-4394 B[a]P/HCB Recovery Standard (solvent - Nonane) Product Concentration 2,3,3',5,5'-PeCB 100 µg/mL

XLR-11 4-hydroxypentyl metabolite,1000 µg/mL,MeOH,1mL,

2,4-Dinitrophenol