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- 供应商:
MP
- 规格:
116992006(6each)
The stainless steel lysing matrix tube with cylinder is ideal for grinding, lysis and homogenization your most resistant samples. The cylinder causes the most disruption to all sample types. Constructed from 308 SS, these tubes and grinding cylinder is tough enough to stand up to the most demanding mechanical punishment that can cause traditional thermoplastic tubes to crack. The tubes are machined from premium grade billet and deliver superior strength over less expensive production methods such as deep-drawn aluminum tubes. An oblique angle conical bottom provides a better impact surface than the rounded bottoms of deep-drawn tubes. The stainless steel threaded cap provides a leak-proof closure without the energy-robbing alternatives like plastic flange screw caps or rubber stoppers. A Teflon O-ring prevents leakage, and can be cleaned with detergent and/or autoclaving, or replaced entirely between samples. Machined knurls on the cap provide a firm grip to easy opening and closing.
Sample types include:
Tough seeds such as dried corn, soybeans, wheat, tomato and Chile
Wood, bark, roots, animal claws and hooves
Bone, teeth, hair, fingernails and non-biological substrates
Tough tissues, bone, cartilage, skin
Non-biological, rocks and minerals, plastics and composites, printed circuit boards, wood and building materials
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文献和实验表面硅烷醇、硅酸及金属杂质的影响。在特殊情况下,选择性的差异可由填料制备时使用的键合过程决定的。 通常情况下,色谱工作者选择HPLC色谱柱是通过比较由色谱柱供应商所提供的填料介质的规格来决定的。这些规格内容包括:表面积、末端封尾、含碳量、颗粒形状、颗粒尺寸、孔径、孔容积、装填密度和键合度。含碳量和键合度仅由色谱制造商提供,没有这些规格使用者不可能计算出碳的克数,也不可能计算出一根色谱柱中键合相的微分子数。分析工作者可使用这两个数据来估计一根色谱柱的疏水性质。然而,即使制造商提供所有上述规格
磁珠的细胞会贴附在管壁上,从而可以方便地去除其他成分。 Dynabeads Sterile Epoxy是一种疏水性磁珠,它表面含有活化的环氧基团。这些环氧基团会以共价键的形式与蛋白质或多肽的主要氨基酸序列相结合,而无需进一步的活化过程。该磁珠的直径为4.5μm(C.V. max 5%),浓度为每毫升含磁珠4×108个,在4~37℃、中性pH的条件下可与温敏性抗体进行偶联反应。 Dynabeads Sterile Epoxy是在严格无菌的条件下进行生产的,并已备有相关FDA设备管理文件查阅
x104Pa)高压下蒸气灭菌15min,贮存于4℃。葡萄糖的作用是使悬浮后的大肠杆菌不会很快沉积到管子的底部,增加溶液的粘度,维持渗透压及防止DNA受机械剪切力作用而降解。EDTA是Ca2+ 和Mg2+等二价金属离子的螯合剂,在溶液I中加入EDTA,是要把大肠杆菌细胞中的二价金属离子都螯合掉。从而起到抑制DNase对DNA的降解和抑制微生物生长的作用。2、溶液Ⅱ:0.2mol/LNaOH(内含1%的SDS),这个用的时候需现配。要新配置溶液Ⅱ是为了避免NaOH接触空气中的CO2而减弱了碱性
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