Analytical method and apparatus using diffusion across a boundary between liquids
Abstract
Abstract A METHOD OF, AND APPARATUS FOR, OBTAINING A QUANTITATIVE INDICATION OF A CONSTITUENT IN A LIQUID, FOR EXAMPLE, A CRYSTALLODIAL CONSTITUENT SUCH AS GLUCOSE IN BLOOD, IN ITS MIXTURE WITH OTHER MATERIALS, WHICH INVOLVES BRINGING A CONSTITUENT CARRYING LIQUID INTO CONTACT WITH ANOTHER LIQUID TO FORM A RELATIVELY STABLE BOUNDARY BETWEEN THE LIQUIDS, ALLOWING DIFFUSION TO OCCUR ACROSS THE BOUNDARY, AND WITHOUT DISRUPTING THE BOUNDARY, CONVEYING THE THE BOUNDARY TO AN ANALYZING ZONE WHERE A MEASUREMENT IS OBTAINED WHICH IS INDICATIVE OF THE CONCENTRATION OF THE CONSTIUTENT IN THE CONSTITUENT CARRYING LIQUID. COLORIMETRIC OR PHOTOMERTRIC TECHNIQUES ADVANTAGEOUSLY ARE EMPLOYED IN MAKING THE MEASUREMENT, AND THE TRANSMITTANCE CHANGE AT, OR PROXIMAL TO, THE BOUNDARY DESIRABLY IS REGISTERED BY AN ELECTRICAL SIGNAL WHICH CAN BE USED TO ENERGIZE SUITABLE RECORDING DEVICES TO PROVIDE VISUAL DATA RELATIVE TO THE CONCENTRATION OF THE CONSTITUENT IN THE CONSTITUENT CARRYING LIQUID.
Inventors
- 👤 Ronald Trcka
- 👤 Paul H Sherrick
Bibliographic Details
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