"A trustworthy partner for the IVD industry and R&D labs seeking premium immunoassay components."Henrik Christensen, CEO and owner of Kem-En-Tec Diagnostics

OPD

OPD Tablets for colorimetric detection of Horseradish Peroxidase activity in ELISAs.

Ortho-Phenylenediamine (OPD) is a water soluble chromogenic substrate that produces a yellow color during the enzymatic degradation of hydrogen peroxide by horseradish peroxidase (HRP) with an absorption maximum at 450 nm. After addition of sulfuric acid a very stable orange end solution is obtained that can be read at 490 nm.

Kem-En-Tec Diagnostics offers:

  • Fizzing OPD tablets: 2 mg tablets are available as fizzing, buffer-containing tablets (#4110-100)

 

Catalog number Tablet type Tablet size Package size
4110-100 Fizzing OPD tablets 2 mg 100 tablets/vial

 

Properties

  • Stable and robust
  • Negligible batch-to-batch variation
  • Development time: 5-30 minutes

Stability

  • At least 18 months at 2-8° C
  • For long term storage OPD tablets should be kept at -20°C

 

All products are available as OEM components or under our own Kem-En-Tec Diagnostics A/S label.