Nicotinic acid, Stock solution system check EN12260

Diflubenzuron, 100 µg/ml, Acetonitrile, 5ml

p-Quaterphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 135-70-6

EPA 8270C - Multiple Component Solution 1 38 Analytes, each 100µg/mL in methanol; unit: 5x1mL 0732.12 Acenaphthene [83-32-9] 0002.12 Acenaphthylene [208-96-8] 2751.8 Acetophenone [98-86-2] 2169.6 Aniline [62-53-3] 1049.14 Anthracene [120-12-7] 2130.