Profenofos, 10.0 µg/ml, Cyclohexane, 10ml

Internal Std., 4000µg/ml Methylene Chloride, 1ml

25-Hydroxyvitamin D2 (95%)

Multicomponent Stock Solution of native reference substances (§ 5.8) 8 Analytes, each 50µg/mL in isooctane; unit: 1x1mL