(-)-(S)-Levetiracetam,1000 µg/mL,MeOH,1mL

2-(4-Nonylphenoxy)acetic acid isomer mixture,10 µg/mL,isooctane,1mL,

Phosphate (PO43-) as P

2,3-Benzofluorene, 1000µg/ml in methylene chloride, 1ml