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. Author manuscript; available in PMC: 2013 Aug 21.
Published in final edited form as: Anal Chem. 2012 Aug 8;84(16):7172–7178. doi: 10.1021/ac301542j

Table 1.

Simulated values of back pressure in cm H2O generated in the desiccant mouthpiece for varying porosities and particle sizes. Simulation is for 5 grams of calcium chloride.

Particle size Porosity
0.25 0.35 0.45 0.55 0.65
0.35 mm 243.50 66.68 22.46 8.23 3.01
0.70 mm 60.91 16.67 5.61 2.05 0.75
1.05 mm 27.07 7.41 2.49 0.91 0.33
1.40 mm 15.22 4.17 1.40 0.52 0.18