RNA isolation / purification Cells primary

Get tips on using PAXgene Tissue RNA/miRNA Kit to perform RNA isolation / purification Tissue - Rat Liver

Get tips on using PAXgene Tissue RNA/miRNA Kit to perform RNA isolation / purification Tissue - Rat Kidney

Get tips on using PAXgene Tissue RNA/miRNA Kit to perform RNA isolation / purification Tissue - Rat Intestine

Get tips on using PAXgene Tissue RNA/miRNA Kit to perform RNA isolation / purification Tissue - Rat Heart

Get tips on using Isolate II RNA Mini Kit to perform RNA isolation / purification Tissue - Rat Gut

Get tips on using PAXgene Tissue RNA/miRNA Kit to perform RNA isolation / purification Tissue - Rat Brain

Get tips on using FastLane Cell Probe Kit (200) to perform RNA isolation / purification Cells - immortalized A549

Get tips on using miRNeasy Mini kit to perform RNA isolation / purification Cells - immortalized OS-RC-2

Get tips on using NucleoSpin® RNA to perform RNA isolation / purification Bacteria - Gram negative Bordetella pertussis

How do I extract RNA from animal tissue without using liquid nitrogen? I tried the RNA extraction by using the TRIzol reagent and I homogenize the tissue using polytron homogenizer at room temperature for 30secs is this correct?