This application note demonstrates the excellent inertness performance of an Agilent J&W DB-Wax Ultra Inert GC column in the analysis of glycols in toothpaste. DB-Wax UI columns provide better column durability and more consistent analytical results compared with other PEG stationary phase GC columns. Agilent 5977B 单四极杆气质联用系统GC/MSD
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