Immunochromatography is a testing method for detecting a disease by dropping the sample containing an analyte onto a test strip. This is a speedy and simple technique that produces diagnostic results in 10 to 15 minutes after dropping the sample. An allergic reaction indicating a positive test result appears as a colored line.
Tests results from using immunochromatography are usually judged by a visual check, but using a high-sensitivity reader can find a disease with good accuracy even when the colored line is very thin. Since the intensity of the colored line is proportional to the amount of analyte in the sample, increasing the reader’s sensitivity gives good test results from just a small amount of sample which lowers the burden on the person being tested.
Ordinary measurement technique by immunochromatography
Typical measurement technique when using a reader.
Technique ideal for even small amounts of virus since detection sensitivity is high compared to absorption method.
|Visual inspection||Testing by reader|
|Absorption method||Fluorescence method|
|Easy to handle||Easy||Not so easy|
|Reagent error detection||Not detectable||Reader can detect|
|Digitizing of reaction results||Judgment by color chart||Judgment by reader|
|Recording judgment results||Requires a scanner or camera||Auto|
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