Tutorial #7: How to Achieve Reproducible Data
This tutorial will help you understand the influence of evaluation parameters on results and provide advice on how to improve your own operations.
Tutorial #6: Calibration in GPC/SEC
Following on from Tutorial #5 we'll move on to approaches that will help you to understand the requirements and procedures for calibrations using reference materials with narrow molar mass distributions, and to get some inspiration on various calibration options.
Tutorial #5: Sample Preparation in GPC/SEC
Following on from Tutorial #4 we'll move on to answer the question, 'how do I prepare samples for successful GPC/SEC analysis'. Here we'll also discover how to avoid typical mistakes when preparing solutions of your samples and calibration standards.
Tutorial #4: Finding the right particle size and pore size in GPC/SEC
Following on from Tutorial #3 we'll move on to discuss in more detail how to avoid strange peak shapes in GPC/SEC and on what criteria correct column selection should be based. If the question 'I have completely new samples and need to identify the best columns to analyze them' sounds familiar then this tutorial will help you out.
Tutorial #3: Unexpected peak shapes
Do you find weird peak shapes in your chromatograms? Not sure if they are real or artifacts? In this tutorial we'll discuss peak shapes and learn how to verify if a GPC / SEC chromatogram is realistic or not. You learn why some peak shapes occur, why this happens and how to address these issues to keep your analyses on track.
Tutorial #2: Pressure problems
In this tutorial you'll discover what strategies can be implemented to overcome pressure problems in your liquid chromatography system. What causes these issues, what high and low pressures might mean, and how to troubleshoot them to ensure your analysis remains optimized.
Tutorial #1: What you need to know before injecting a sample
Before you even start to think about your GPC/SEC analysis there are a few things you need to know. You are introduced to typical components in GPC/SEC and will discover what you need to know about your GPC/SEC system? You will also learn what plate count means and you how can you determine it.
Dr Daniela Held studied chemistry at the University of Mainz. Her PhD work was on the characterization of star-branched polymers using GPC/SEC and hyphenated techniques. She joined PSS in 2000 and is responsible for customer training and support.