Qiagen has just released two protocols for use with the company's RNeasy kits.
The first protocol provides microRNA purification from a range of sample types, including total RNA, cultured cells, soft animal tissues, and plant tissues, said Qiagen. The protocol is for use with the RNeasy mini-kit in combination with the RNeasy MinElute Cleanup kit, and allows either co-purification or separate purification of microRNA and total RNA greater than 200 nucleotides.