| 摘要 |
Faeces is applied on an absorbing paper impregnated with a solid peroxide-giving compound, here sodiumperborate. To the faeces sample is added a chromogen, 3,3',5,5'-tetramethylbenzidine, dissolved in acetic acid, ethanol and water and stabilized by adding histidine. When blood is present in the faeces sample blue-bluishgreen colour developes on and at the edge of the faeces sample. Coulor development can occur within 5-10 seconds when the sample contains 1 ml blood pr. 100 g faeces. The analytical system thus employs only one single reagent when the assay is performed because the system's peroxide-giving part is impregnated on the same carrier on to which the faeces is applied. |
