4楼: Originally posted by xstarsky at 2012-03-19 17:29:28:
Spectrophotometry and fluorometry are commonly used to measure DNA concentration. Spectrophotometrycan be used to measure microgram quantities of pure DNA samples (i.e., DNA that is not contaminate ...

5楼: Originally posted by gaoyang636 at 2012-03-20 09:01:30:
DNA浓度范围大约多少？你是要确定一种方法来测定浓度，还是测了浓度好定量，进行下面的实验？
问个问题，要尽量把背景描述清楚啊，要不然俺们想帮你也有心无力

6楼: Originally posted by lys6827 at 2012-03-20 09:03:59:
DNA浓度测定的方法多了，有仪器可以测，最简单的就是紫外分光光度计，还有eppendorf分光光度计，其他的荧光定量之类的要贵一些
对了最便宜的是跑电泳根据与marker亮度相比较大致测定浓度，这是最早的相对定量，不 ...

7楼: Originally posted by 小小鸽飞 at 2012-03-21 10:08:53:
你DNA用什么方法提取的呢？给你推荐个好方法吧，中国磁珠法提取DNA方法第一品牌——河南惠尔纳米科技公司，提取纯度高，操作简便，节省时间

10楼: Originally posted by wanglinlin9870 at 2012-03-21 21:31:58:
DNA的浓度以碱基对的摩尔浓度计，用紫外可见分光度计测量DNA在260 nm的吸光度值A260。