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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?Essentials of LC Troubleshooting, Part II, Continued: More Misbehaving Retention Times Application of Porous Layer Open Tubular Columns: Beyond Permanent Gases

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?Essentials of LC Troubleshooting, Part II, Continued: More Misbehaving Retention TimesApplication of Porous Layer Open Tubular Columns: Beyond Permanent Gases

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All App NotesBiological, Medical, and ClinicalBiopharmaceuticalsCannabisChiralEnvironmentalFood and BeverageGCGC-MSGeneralIndustrialLCLC-MSMedical/BiologicalMisc TechniquesPharmaceuticalsPolymersSample PrepSize-Exclusion Chromatography (SEC)Supercritical Fluid Chromatography (SFC)

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LCGC North America

Variable Retention Times — A Case Study

This troubleshooting study of a problem of retention time variation provides a good example of how to track down the source of a problem and how to speculate on probable cause.