Storage solution for HILIC-Z column

Question

Hello, 
 What is the best storage solution for an Agilent InfinityLab Poroshell 120 HILIC Column (Zwitterionic)? 
 I know reverse phase columns are typically stored in 100% organic like acetonitrile. But since solvent strength is opposite for HILIC, I was curious if 100% organic still makes sense? Would 95:5 Acetonitrile:Water be better? Also curious if there are additional storage requirements for Zwitterionic. 
 Thank you for your help! 
 -Katie

Andy Wright · Accepted Answer

Hi Katie 
 Check the booklet that came with the column: https://www.agilent.com/cs/library/packageinsert/public/820000-998_LR.pdf 
 According to this, for long-term storage, the HILIC-Z column should be stored in 90:10 acetonitrile:water. 
 /Andy

Storage solution for HILIC-Z column

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