alpha-Endosulfan, 100 µg/ml, Methanol, 1ml

Melamine-13C3,15N3, 1mg

ISO 8165-2 Internal Control Stock Solution 1 S-4355 1 Internal standard, 10 µg/mL, in methanol, 5mL 2,4-Dibromophenol [615-58-7] 2061,6

Trichloromethane, 100 µg/ml, Methanol, 1ml