please help me with this

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please help me with this

Postby Patrizia » Fri Mar 10, 2006 8:09 pm


i need to make up a 3000 ml bag with 400 ppb of methanol for a calibration. I know the methanol density is 0.792 (at 20 Celsius) g cm-3.

I ill use Nitrogen to fill up the bag. Pleas tell me how many micro liters of liquid Methanol i need to inject into the bag to reach a final c% of 400 ppb Methanol. Working temperature = 20 Celsius (constant).



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