Casein ELISA kit is a competitive enzyme immunoassay for the quantitative analysis of Casein in milk, milk powder samples.
The coupling antigens are coated on the micro-well stripes. The Casein in the sample and the coupling antigens coated on the micro-well stripes compete for the anti-Casein antibodies. After the addition of the enzyme conjugate, the TMB substrate is added for coloration.
The optical density (OD) value of the sample has a negative correlation with the Casein in it. The measurement is made photometrically at 450 nm. The absorption is inversely proportional to the Casein concentration in the sample.
Detect Limit: 1.0 ppb
Specification: 96 tests/kit
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