Microdistillation method

Details Microdistillation method Microdistillation method

1991-02-07

1994-04-19

Manoharan, Virginia

Distillation: processes, separatory

With measuring, testing or inspecting

159DIG27, 159DIG28, 203 12, 203 99, 203DIG2, 436158, 436178, B01D 300

Patent

active

053042875

ABSTRACT:
A microdistillation method for the quantitative steam distillation of cyanide, phenolic compounds, hydrogen fluoride, ammonia, sulfites and other volatile analyte compounds from samples of environmental waters and sludge for their subsequent analysis involves volatilizing the water in the sample tube of a microdistillation column. The pressure which develops due to the water vapor forces all volatile compounds from the water sample, including the water itself, through a hydrophobic membrane and into the collector tube of the microdistillation column. The volatile compounds and the water vapor condense in the cooler collector tube and are quantitatively trapped and retained over the membrane. Relatively small samples may be distilled.

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