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Principle
Bisphenol A (BPA) ELISA Test Kit is a competitive enzyme immunoassay for the quantitative analysis of Bisphenol A in tissue,honey, milk, urine and Serum.
The coupling antigens are coated on the micro-well stripes. The Bisphenol A in the sample and the coupling antigens coated on the micro-well stripes compete for the anti-Bisphenol A 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 Bisphenol A in it. The measurement is made photometrically at 450 nm. The absorption is inversely proportional to the Bisphenol A concentration in the sample.
Technical specification:
Sensitivity: 5 ppb Detect time: Approx.75 min
Detect limit
Urine,serum.................................. 10 ppb
Liver,tissue..................................... 7.5 ppb
Recovery rate
Urine,serum...............................70 ± 10%
Liver,tissue..................................80 ± 10%
Cross-reaction rate
Bisphenol A .......................100%
Thiamphenicol........................< 0.1%
Florfenicol...............................< 0.1%