YALEPIC® cfRNA Isolation Kit(No DNase I) is suitable for the extraction of cell free RNAs (miRNA, <200 nt) from Serum, Plasma, and Urine. The obtained cfRNAs are of high purity without large RNAs or genomic DNA contamination, can be directly used for Microarrarys, Northern blot, RT-PCR. Based on a combination of high performance RNA Isolater extraction reagent and silica gel column purification technology, the extraction of cfRNAs can be completed within 1 h with this kit. This kit can also be used to isolate and extract large RNAs (>200 nt) or total RNA (including miRNAs) to meet different needs.