Transcribed RNAs or PCR items have been handled, ideally inside a committed laminar flow hood such as a biosafety hood or enclosed PCR workstation, and by utilizing a dedicated set of pipettes and filter tips, if possible. T7 RNA polymerase from other suppliers might be used, next the producer's Guidance, https://www.quora.com/profile/Even-Sa/What-are-the-identification-methods-of-Chinese-herbal-medicines-The-main-methods-of-traditional-Chinese-herbal-medicin