| 產(chǎn)品詳情 |
| Edit |   |
| Product Name | Vitamin B12 ELISA |
| Description | The Eagle Biosciences Vitamin B12 quantitative test is based on the principle of the enzyme linked immuno sorbent assay. An antibody directed against vitamin B12 is bound on the surface of a microtiter plate. Vitamin B12 containing samples or standards and a vitamin B12-peroxidase conjugate are given into the wells of the microtiter plate. Enzyme labelled and free vitamin B12 compete for the antibody binding sites. After one hour incubation at room temperature, the wells are washed with diluted washing solution to remove un bound material. A substrate solution is added and incubated for 20 minutes, resulting in the develop ment of a blue colour. The colour development is inhibited by the addition of a stop solution, and the colour turns yellow. The yellow colour is measured photometrically at 450 nm. The concentration of vi tamin B12 is indirectly proportional to the colour inten sity of the test sample. Sample Types: food products. Range: 0.4 - 40 ng/ml. Sensitivity: 0.3 ng/ml. Time: 1.5 hours ? Vitamin B12 as a trace element belongs to the biologi cally important chelate formers. The basic unit con sists of a corrin ring with cobalt as a central atom. Cobalt is six fold coordinated by four nitrogen atoms, one cyanide and a dimethylbenzimidazol group. Vi tamin B12 forms a stable complex, which is absorbed in the lower part of the small intestine, with the so-called intrinsic factor present in the gastric juice. A lack of vitamin B12 can lead among other things to pernicious anemia. This disease is not generated by an insufficient supply of vitamin B12, but by the ab sence of intrinsic factor. A pernicious anemia can be treated by a high dosage of vitamin B12. |
| Size | 1 x 96 well |
| Concentration | n/a |
| Applications | RUO |
| Other Names | Cobalamin, Vitamin B12, B12 |
| Gene, Accession, CAS # | n/a |
| Catalog # | B1206-K01 |
| Price | |
| Order / More Info | Vitamin B12 ELISA from EAGLE BIOSCIENCES INC. |
| Product Specific References | n/a |
| 產(chǎn)品資料 |
|
亚洲成人黄色,伦理片大全免费理伦片,处一女一级a一片视频
|
亚洲中文字幕观看,色偷偷av一区二区三区乱无码,国产人妻国产毛片
|
黄色视频中国,日韩电影无码,欧美特级视频
|
暴操美女网站,视频一区自拍偷拍,午夜免费性爱视频
|
男生把困困放入女生坤坤里,黄在线免费观看,99久久人妻无码精品系列
|
成人毛片18女人毛片免费视频未,美女被摸胸视频,极品嫩逼
|
黄色片免费视频网站,色欧美一区二区三区,五月丁香婷中文字幕
|
高清不卡一区二区,日韩日逼,暗网幼女
|
日本人妻中文字幕,少妇又爽又紧又舒服又爽,精品国产伦子伦免费看
|
国产高清激情,麻豆av在线播放,国内综合在线
|
|