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Concentration calculation: comparing gas phase and liquid phase??

Concentration calculation: comparing gas phase and liquid phase?? - Organic Chemistry Forum

Concentration calculation: comparing gas phase and liquid phase?? - Organic Chemistry Forum


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Old 10-09-2009, 09:26 PM
Pipette Filler
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Post Concentration calculation: comparing gas phase and liquid phase??



I have a calibration curve for methyl salicylate (MeS) from Gas Chromatography (GC).
Calibration curve point taken into account are 1ppm , 10ppm, 100ppm vs. respective area from GC .
I am trying to bubble MeS gas into impinger in known solution at known amount of quantity.
From this solution I can get area from GC.
Question is how I can calculate concentration of MeS bubbled in inpinger.
Points to be noted:
1) MeS used for calibration is in liquid state
2) Concentration of MeS stream to be calculated is in vapor phase
3) Molecular weight of MeS 152.1494 g/mol
4) Same solution used as a solvent for preparing calibration curve and solvent in impinge
Things I can’t Do: Considering weight of impinge before and after bubbling (too many removable parts )
Some Reference:
1ppm = 0.001gm/Lit = 1mg/L
10ppm = 0.01gm/Lit = 10mg/L
100ppm = 0.1gm/Lit = 100mg/L
Below conversion useful if quantity is in gases state
The conversion equation is based on 25 ºC and 1 atmosphere:
X ppm = (Y mg/m3)(24.45)/(molecular weight)


Pls Help !!
Thank you in advance

Last edited by sweet_chemical; 10-09-2009 at 09:47 PM.
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Old 10-10-2009, 02:15 AM
Pipette Filler
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Default Re: Concentration calculation: comparing gas phase and liquid phase??

Thankiossk Cool!
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calculation , comparing , concentration , gas , liquid , liquid to gas , phase




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