| 摘要 |
An alcohol retainer cartridge and method for using same are disclosed herein comprising calcium sulfate as an adsorbent for alcohol. The cartridge includes calcium sulfate contained within a tube between pieces of filter paper. At one end of the tube is a disc having a central aperture smaller than the interior of the tube, the disc resting against an inwardly extending lip of the tube. A spring clip bearing against the interior wall of the tube retains the filter paper at the other end. A sample of the alcohol in a person's breath is obtained by passing an amount of the person's breath, preferably about 52 milliliters, through the calcium sulfate, preferably in the amount of about 0.5 grams. The alcohol is adsorbed by the calcium sulfate and may be subsequently assayed. |
