Desmetryn, 100µg/ml in Acetonitrile, 1ml

Custom Mix of 4-nonyl- and 4-t-octylphenol 2044.15 4-Nonylphenol (mix of isomers) 350 ng/mL 1446.14 4-tert-Octylphenol 300ng/mL

Internal Standard Solution

EPA Method 602/8020