Formaldehyde (2 ppm)

Carbaryl, 10.0 µg/ml, Acetonitrile, 10ml

o-Cresol

EPA 528 rev. 1.0 Sample Fortification Solution 1 100µg/mL in methanol; unit: 1x5mL 2420.6 2-Chlorophenol-3,4,5,6-d4 [93951-73-6]