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Separation type: Bridge Ion Separation Technology, or BIST™ by SIELC Technologies m-Xylylenediamine (MXDA) is a popular curing agent used on epoxy resins. Using SIELC’s newly introduced BIST™ method, MXDA, which protonates in water, can be retained on a positively-charged anion-exchange BIST™ B column. There are two keys to this retention method: 1) a multi-charged, negative […]
Separation type: Bridge Ion Separation Technology, or BIST™ by SIELC Technologies High Performance Liquid Chromatography (HPLC) Method for Analysis of PEI Large multi-charged molecules such as polyethyleneimine (PEI) can be very difficult to separate and retain on standard columns. PEI is a complex mixture of the molecules of different sizes and geometry with various biological and […]