Apparatus for measuring concentration of test substance in liquid
First Claim
1. An assistant apparatus for measuring a concentration of a test substance in a liquid comprising:
- a thin plate having a plurality of openings through which a test substance to be measured is penetrated, and a diffusion limiting membrane covering each of said plurality of openings such that a separate diffusion limiting membrane covers each of said plurality of openings;
or, alternatively, a plurality of thin plates, each thin plate having an opening through which a test substance to be measured is penetrated, and a diffusion limiting membrane covering said opening;
wherein the diffusion-limiting membrane limits diffusion of said test substance,a casing for housing said thin plate or plates, anda driving mechanism for moving said thin plate or plates by a predetermined distance,whereby said assistant apparatus is removably installed in a predetermined position of a test apparatus having a concentration measuring electrode therein such that the concentration measuring electrode can contact said diffusion limiting membrane covering one of said openings.
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Accused Products
Abstract
A disk-shaped thin plate or a long-sized thin plate having a roll appearance housed in a casing in which openings for penetration of test substance are formed and on which diffusion-limiting membranes are adhered to cover each openings. Also a driving mechanism for moving the thin plate is provided with the casing. The casing thus houses the thin plate and is provided with the driving mechanism and is positioned in a test apparatus body having a concentration measuring electrode therein. Multiple measurments of concentration of a test substance are carried out by moving the thin plate by the driving mechanism to position the diffusion-limiting membrane having the test solution deposited thereon to the position available to contact with the concentration measuring electrode, while keeping the casing placed in the test apparatus body. As a result, a plurality of measurements of concentration of the test substance is carried out easily.
221 Citations
18 Claims
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1. An assistant apparatus for measuring a concentration of a test substance in a liquid comprising:
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a thin plate having a plurality of openings through which a test substance to be measured is penetrated, and a diffusion limiting membrane covering each of said plurality of openings such that a separate diffusion limiting membrane covers each of said plurality of openings;
or, alternatively, a plurality of thin plates, each thin plate having an opening through which a test substance to be measured is penetrated, and a diffusion limiting membrane covering said opening;wherein the diffusion-limiting membrane limits diffusion of said test substance, a casing for housing said thin plate or plates, and a driving mechanism for moving said thin plate or plates by a predetermined distance, whereby said assistant apparatus is removably installed in a predetermined position of a test apparatus having a concentration measuring electrode therein such that the concentration measuring electrode can contact said diffusion limiting membrane covering one of said openings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An assistant apparatus for measuring a concentration of a test substance in a liquid comprising:
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a plurality of thin plates, each having one opening through which a test substance to be measured is penetrated, a diffusion limiting membrane for limiting diffusion of said test substance adhered to each of said thin plates for covering said opening on the thin plates, such that each thin plate has one diffusion limiting membrane, a casing for housing said thin plates, and a driving mechanism for moving said thin plates by a predetermined distance, whereby said assistant apparatus is removably installed in a predetermined position of a test apparatus having a concentration measuring electrode therein such that the concentration measuring electrode can contact said diffusion limiting membrane, wherein the thin plates are strips, the opening on each plate being formed at a predetermined position on each thin plate, wherein the casing houses the thin plates therein in a piled up state, said casing further including an opening for sending out one strip of thin plate, and wherein the driving mechanism slides only one sheet of thin plate outwardly through the opening.
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18. A test apparatus for measuring a concentration of a test substance in a liquid comprising:
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an assistant apparatus having a thin plate with a plurality of openings through which a test substance to be measured is penetrated, and a diffusion limiting membrane covering each of said plurality of openings such that a separate diffusion limiting membrane covers each of said plurality of openings;
or alternatively, said assistant apparatus having a plurality of thin plates, each thin plate having an opening through which a test substance to be measured is penetrated, and a diffusion limiting membrane covering said opening;wherein the diffusion-limiting membrane limits diffusion of said test substance, a casing for housing said plate or plates; a driving mechanism for moving said plate or plates, wherein said driving mechanism is provided at least partially with said casing; a test apparatus body for positioning said assistant apparatus removably therein, and a concentration measuring electrode provided with said test apparatus body, whereby said assistant apparatus is positioned in said test apparatus body and said thin plate or plates are moved by said driving mechanism to a position where one of said diffusion-limiting membranes can contact said concentration measuring electrode.
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Specification