Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
The 10 mM dNTP Mix is a ready-to-use preparation of ultrapure dATP, dCTP, dGTP, and dTTP (monosodium salts) at a concentration of 10 mM each in sterile deionized water at pH 7.0. The dNTP Mix is free of RNase and DNase and is qualified for any application that requires pure deoxynucleotides, such as PCR, cDNA synthesis, and fill-in reactions.