The PFA ion exchange column has a Teflon sieve plate and is more durable without welding. This storage turntable effectively solves the placement problem. #Isotopeanalysis #ICPMS#resinseparation #teflon Mobile: +86-153 6614 0844 Wechat/Whatsapp: +86-153 6614 0844 Mail: ClairBZH@gmail.com