4-Nonylphenol-mono-ethoxylate, 10µg/ml in Acetone, 1ml

Thymolphthalexon, 1g

Ethanol standard in serum,0.2g/L,serum, 1.5mL

BTEX Mixture 1 6 Analytes, each 200 µg/mL in methanol; units:1x1 mL, 1x5mL 1300.6 Benzene [71-43-2] 1267.8 o-Xylene [95-47-6] 1264.7 Toluene [108-88-2] 1266.8m-Xylene [108-38-3] 1268.8 Ethylbenzene [100-4