2,4’-DDE, 1000µg/ml in Hexane, 1ml

Nitenpyram, 100 µg/ml, Acetonitrile, 5ml

Hafnium (Hf)

Petrochemical Qualitative Standard C5-C9 5 Analytes, equal Wt.%; unit: 1x1mL neat Use in combination with Petrochemical Quantitative Standard (S-4144) to prepare a calibration mixture covering C5 to C44 for calibrating retention times for boiling po