Objective To study the influence of different DNA extraction methods combined different PCR cycle Numbers on STR analysis from trace bloodstain on various carrier often seen in forensic area.
目的探讨常见载体上的微量血痕dna的提取方法、PCR循环次数对STR扩增成功率的影响。
Conclusion: The optimum extraction process is achieved, which is stable, feasible, energy-saving, short production cycle, high extraction efficiency, suitable for industrialization.
结论：该工艺稳定、可行、节能，生产周期短，提取效率高，适于工业化生产。
As the pump rotor continuous rotation, the above cycle of suction and exhaust process and the achievement of the purpose of the pump continuous extraction.
随着泵转子的连续旋转，以上吸气和排气过程循环进行，实现了泵的连续抽气目的。
This review summarized the recently research process of Sq RT-PCR. It including extraction of total RNA, primer design, definition of cycle count, selection of inner reference and so on.
该文就半定量RT-PCR法的检测步骤及技术的关键因素（总RNA提取、引物设计、循环数的确定和内参的选择等）进行综述。
A novel extraction approach based on partitioning PCA for extracting cell cycle-regulation genes was established.
为了克服这一方法的弱点，提出分块pca，并以此为基础形成一种提取细胞周期调控基因的新方法。
A novel extraction approach based on partitioning PCA for extracting cell cycle-regulation genes was established.
为了克服这一方法的弱点，提出分块pca，并以此为基础形成一种提取细胞周期调控基因的新方法。
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