Nicotinic acid, Stock solution system check EN12260

Performance Control Mixture 4 Analytes each Wt.% as listed; units: 1x1mL, 5x1mL neat Name Wt. % Name Wt. % n-Hexadecane 75.0 Tetralin 3.0 Naphthalene 2.0

bis(4-Chlorophenyl)acetic acid

S-Metolachlor Metabolite CGA 368208, 50mg