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High-Throughput Analysis of Volatile Impurities in Sustainable Packaging using SIFT-MS Automated Sample Prep in Regulated and Nonregulated Labs Just Got Easier What is Chemical Composition Distribution in Polyolefins, and Why Should It Be Part of Your HT GPC Analysis?How Well Do You Pipette?Probe Electrospray Ionization-Mass Spectrometry and Isotope Dilution Approaches

High-Throughput Analysis of Volatile Impurities in Sustainable Packaging using SIFT-MSAutomated Sample Prep in Regulated and Nonregulated Labs Just Got EasierWhat is Chemical Composition Distribution in Polyolefins, and Why Should It Be Part of Your HT GPC Analysis?How Well Do You Pipette?Probe Electrospray Ionization-Mass Spectrometry and Isotope Dilution Approaches

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The Application Notebook

Separation of Quaternary Ammonium Compounds Using a Bonded Polymeric Zwitterionic Stationary Phase

Using a bonded polymeric zwitterionic stationary phase, in HILIC mode, polar quaternary herbicides like Diquat can easily be retained, with good peak symmetry. The impact of ionic strength and organic content in the mobile phase is discussed.