A testing apparatus
10
having an absorbent matrix
12
, including a membrane
14
which contains a plurality of counter-ions
16.
Chromionophore (or fluorionophore)s
18
and affinophores
22
compete to carry ions into the membrane
14
and neutralize the charge of the counterions
16.
Biological recognition molecules
42
bind to a portion of the affinophores
22
and prevent them from entering the membrane
14,
thereby allowing more chromionophore (or fluorionophore)s
18
to enter the membrane
14.
The portion of affinophores
22
bound to the biological recognition molecules
42
is inversely proportional to the amount or concentration of analyte
40
occurring within the solution or medium
30.
The result of this is that the color of the membrane-covered matrix changes in a manner related to the concentration of the analyte. One application of this apparatus is a strip test for prediction of ovulation.
测试仪器
10
具有吸收基质
12
包括一层薄膜
14
其中包含多个反离子
16.
发色团(或荧光团)18
18
和 affinophores
22
竞争携带离子进入膜
14
并中和反离子的电荷
16.
生物识别分子
42
与部分亲和分子结合
22
并阻止它们进入膜
14,
从而使更多的发色团(或荧光团)18
18
进入膜
14.
亲和荧光团
22
与
生物识别分子结合的部分
42
与分析物的量或浓度成反比。
40
的量或浓度成反比。
30.
其结果是,膜覆盖基质的颜色以与分析物浓度相关的方式发生变化。这种仪器的一种应用是预测排卵的条带测试。