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Gendepot/DAB Chromogen (High Contrast), D3226/20ml/D3226-002

价格
¥1640.00
货号:D3226-002
浏览量:127
品牌:Gendepot
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商品描述
High Contrast This product has been developed for applications that require high contrast between the chromogen and Hematoxylin counterstain
Stain ColorThe resulting stain is a darker brown than standard DAB and somewhat more sensitive.
This product has been developed for applications that require high contrast between the chromogen and Hematoxylin counterstain. The resulting stain isa darker brown than standard DAB and somewhat more sensitive. GenDEPOT recommends using Hematoxyling for Automation for optimal contrast. 3,3"Diaminobenzidine (DAB) is a widely used chromogen for immunohistochemical staining and immunoblotting.
When in the presence of peroxidase enzyme,DAB produces a brown precipitate that is insoluble in alcohol. This product is available in a two component form consisting of a liquid, refrigerator stable DAB Chromogen and DAB Substrate (High Contrast). The standard working dilution is 50ul (0.9mg) of DAB Chromogen per 1ml of DAB Substrate (High Contrast), although the ratio can be adjusted as desired.
The use of liquid components reduces some risks associated with handling powders (ie. dust inhalation), and eliminates waste which often results from using tablets that require a predetermined final volume. Once the two components are combined, the reagent can be used for up to six hours, making it ideal for automated stainers.
Gendepot的T4 DNA连接酶是最通用的DNA克隆连接酶。这种ATP依赖性酶将5'-磷酸与3'-羟基化的末端共价连接,这些末端是通过限制性酶消化或其他酶促过程产生的双链DNA片段的平末端或相容的内聚末端。T4 DNA连接酶对单链核酸无活性。连接反应后,可通过在65℃温育10分钟使T4 DNA连接酶失活。