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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
低温
- 保质期:
详见说明
- 库存:
99
- 供应商:
上海圻明生物
- 规格:
50次
榛子源性成分PCR检测试剂盒上海圻明生物优势供应。更多产品资料欢迎免费咨询。
One of the many important uses of PCR technology is that it can be used to label DNA probes with high specific activity. PCR technology has high specificity, and can synthesize probe DNA fragments in quantities within 1~2h if [α-32P]dNTP or other markers are added to the substrate
dNTPs, the probe DNA can be well labeled during DNA synthesis, and the incorporation rate of the marker can be as high as 70%~80%. Therefore, PCR labeling technology is particularly suitable for large-scale detection and non-radiolabeling. The disadvantage of this method is that a specific pair of PCR primers is synthesized.
Labeling can also be achieved by using small fragments prepared from probe DNA as primers.
Solution preparation
1. Prepare a stock solution
Unless otherwise stated, all unused stock solutions should be divided into disposable aliquots and stored at -20 °C after preparation. Avoid repeated freeze-thaw cycles.
1.1* Acid Stock Solution (125X):
Add 20 μL DMSO to *ate (component B) to make a 125X* acid stock solution.
2. Prepare standard solutions
*Salt standard solution
Add 50 μL of 1 mM KH2PO4 (Component C) to 950 μL of deionized water or enzyme reaction buffer to give a 50 μM * saline standard solution (PS7). A 50 μM * saline standard solution (PS7) was taken and serially diluted 1:2 to obtain a serially diluted phosphate standard with deionized water or enzyme reaction buffer.
3. Prepare a working solution
Add 20 μL of 125X* stock solution to 2.5 mL of sterile H2O and mix well to make a working solution of *salt. Avoid potential Pi contamination. Note: Avoid direct exposure of *salts (component B) to light. Due to the high sensitivity of this assay to Pi, it is extremely important to use Pi-free labware and reagents.
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文献和实验或存放不当:质粒提取试剂盒成分复杂且保存条件不同,有的试剂还容易出现浑浊。在使用之前需要检查试剂是否保存得当,如果出现浑浊,可参考试剂盒说明书,进行 37℃ 温浴至溶液澄清,再冷却至室温使用。 ⑦洗脱液体积不合适:洗脱液使用体积过大会导致提取浓度偏低,过小会导致洗脱不充分,产量过低。建议参考试剂盒说明书来确定洗脱体积,如果洗脱浓度偏低,可以重复洗脱一次; ⑧洗脱液未添加到硅胶膜中心:可能会导致洗脱液覆盖不完全,导致洗脱效率降低。此外洗脱液可以使用碱性洗脱缓冲液或者无核酸酶的水,避免使用 PH<
,支原体DNA会显示为特异性条带,以此指示支原体的存在。PCR法可以检测大多数支原体,但谨慎起见最好同时使用另一种检测方法来进行验证。 普健生物生产的支原体PCR检测试剂盒(Mycoplasma PCR Test Kit)是一款具有快速、灵敏、特异性高等特点的支原体检测试剂盒,可用于细胞、培养基、动物血清等的支原体检测。本产品通过聚合酶链式反应技术(PCR)特异扩增支原体16s-rRNA 基因保守区域片段进行支原体检测,能够检测包括M. arthritidis, M
。 将修复盒从微波炉中拿出,自然冷却降温,当修复液降至室温后取出玻片,PBS(pH 7.4)冲洗3遍,每次3 min(冲洗过程中切勿对着组织冲洗,以免弄破组织)。 灭活 将配制好的 3 %的过氧化氢(去离子水稀释30%过氧化氢)滴加于切片组织上以阻断内源性过氧化物酶,室温孵育15 min,PBS 冲洗 3 次,每次 3 min。 抗体孵育 吸水纸吸干 PBS,在玻片上滴加 5%的正常血清(与二抗种属来源一致或相似),37 ℃封闭 30 min。 用吸水纸擦干玻片组织周围的液体,用油
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