LABEL-IT™ 3' Biotin End Labeling Kit: The LABEL-IT 3' Biotin End Labeling Kit provides an effective and easy to use system for the rapid labeling of any oligonucleotide (including PCR and sequencing primers), as well as other DNA molecules at the 3' end with biotin-14-dCTP. The 60 minute protocol uses terminal deoxynucleotidyl transferase and labels > than 90% of DNA. SPIN-Pure™ COLUMNS SPIN-Pure™ COLUMNS are specifically designed for the quick and easy removal of unincorporated label. These columns are economical, easy to use, fast and non-toxic. SPIN-Pure™ COLUMNS come pre-packaged in a variety of pre-hydrated and dry formats.   © 2004-2019 PureBiotech LLC All rights reserved.