Tuning Solution- Method 200.7 section 7.7

Merphos

Sulfur Calibration Standard Unit: 10mL screw cap bottle or custom-made cylinders Chiron No. Matrix: Methanol Compound Concentration S-4078 0185.2 Dimethyl sulfide 5 ppm (w/w)

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