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无内毒素质粒DNA大量提取试剂盒

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上海莱枫生物科技有限公司
18012236082 021-64810180
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  • Brand  lifefeng
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  • Main Business:PCR,核酸纯化,核酸电泳
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Last Updated 2025-08-12 18:07

无内毒素质粒DNA大量提取试剂盒

无内毒素质粒DNA大量提取试剂盒采用SDS/碱裂解法释放质粒DNA,选择性吸附质粒DNA去除绝大部分内毒素,高盐离子洗脱,进一步分相去除残留的内毒素,异丙醇沉淀回收质粒DNA,可根据实验需要决定DNA溶解体积。
DNA吸附柱-扩容管在负压装置上完成吸附DNA过程,实现了大体积溶液转小管操作,即后续步骤使用1.5-2 ml离心管操作;以平行处理4个样品为例,操作时间约150 min。
处理菌液体积与产量:100-200 ml 含高拷贝质粒的LB菌液,产量为1-2 mg质粒DNA。
200-400 ml 含低拷贝质粒的LB菌液,产量50-200 μg质粒DNA。
质量与应用:内毒素含量低于6 EU/mg质粒DNA,以超螺旋构型为主,无RNA与基因组DNA残留,可用于细胞转染与DNA疫苗。

产品使用说明书:无内毒素质粒DNA大量提取试剂盒
更多产品信息请关注:www.lifefeng.com

附:鲎试剂凝胶法检测内毒素
规格:0.1 ml 灵敏度:0.06 EU/ml 检测下限:0.006 EU/支(购自厦门市鲎试剂实验厂有限公司)
检测组 37℃正立放置1小时,观察凝胶形态
1. 阴性对照:100 μl无内毒素水 液态:材料与操作过程无内毒素污染
固态:材料或操作过程有内毒素污染,实验数据无效
2. 阳性对照:用无内毒素水配制标准品至0.25 λ(0.06 EU/ml),100 μl 液态:鲎试剂失效,实验数据无效
固态:鲎试剂有效,达到预期灵敏度
3. 干扰测试:1-2 μg 质粒DNA与0.25λ标准品混合,100 μl 液态:鲎试剂失效或检测样品干扰凝胶反应,实验数据无效
固态:检测样品不影响凝胶反应
4. 检测样品:1-2 μg 质粒DNA加无内毒素水至100 μl 液态:内毒素含量<0.006 EU/μg DNA (6 EU/mg DNA)
固态:内毒素含量>0.006 EU/μg DNA (6 EU/mg DNA)

通常使用本试剂盒提取的质粒DNA检测量为1-4 μg,无凝集反应。
Company Name 上海莱枫生物科技有限公司
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Business Scope PCR,核酸纯化,核酸电泳
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