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The CHROMacademy Essential Guide Webcast:
Choosing the Correct Sample Preparation Technique

Thursday 22th May 2014, 8:00AM PDT/ 11:00AM EDT/ 15:00 GMT/ 16:00 CET

“Before anything else, preparation is the key to success” Alexander Graham Bell. This is certainly true in analytical chemistry. The correct choice of sample preparation method for a sample prior to analysis can have a myriad of benefits; properly prepared samples will produce simpler chromatograms free from interfering peaks, instrument parts will be protected from harmful contaminants which could result in break downs and the need for increased maintenance, and the sample will be compatible with the analysis method (correct pH, solvent etc.) minimizing deleterious chromatographic effects. This Essential Guide webcast will provide details of sample preparation techniques and guide you to the correct method for your sample; whether it is a simple liquid/liquid extraction or a more complex solid phase extraction.

Topics covered include:

  • What sample preparation techniques are available
  • What are the underlying chemical mechanisms which lead to selectivity within sample preparation
  • Which sample preparation techniques are applicable to particular sample types and applications
  • What are the relative merits and drawbacks of each commonly employed technique
  • How to choose the correct sample preparation technique

Who Should Attend:

  • Anyone working with HPLC stationary phases in use
  • Anyone working with GC
  • Anyone working with hyphenated techniques
  • Anyone who wishes to develop robust chromatographic methods
 
GC-MS Ionization Processes

 

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Thermo
Choosing the Correct Sample Preparation Technique
- Tutorial

“Before anything else, preparation is the key to success” Alexander Graham Bell. 

This is certainly true in analytical chemistry.  The correct choice of sample preparation method for a sample prior to analysis can have a myriad of benefits; properly prepared samples will produce simpler chromatograms free from interfering peaks, instrument parts will be protected from harmful contaminants which could result in break downs and the need for increased maintenance, and the sample will be compatible with the analysis method (correct pH, solvent etc.) minimizing deleterious chromatographic effects. 

The following CHROMacademy material will provide an in depth knowledge and understanding of key sample preparation techniques so that the most appropriate technique can be chosen for a particular sample.  Furthermore, a good fundamental knowledge of the science behind each technique will allow for improved method development and the ability to recognize and solve problems if and when they arise.

 
SPE Meth Dev - interactive learning tool

SPE Method Development Tool - interactive learning from CHROMacademy
This tool gives a simple and structured approach to developing a reversed phase Solid Phase Extraction (SPE) method.  The interactive learning tool allows for the evaluation of different sets of conditions and demonstrates what effect they have on the resulting chromatogram.
http://www.chromacademy.com/chromatography-SPE-Meth-Dev.html

 
5min - SPE

What can you learn in 5 minutes - SPE
This clear and concise 5 minute guide will explain the fundamental concepts of SPE and how to avoid common errors.
http://www.chromacademy.com/chromatography-SPE-sample-preparation.html

 
5min - SPE

Primary Sample Preparation Techniques
From the simple to the complex sample preparation techniques; this interactive e-learning module gives a brief overview of some of the most commonly used sample preparation techniques.  The fundamental theory of each technique is described in order to understand how the techniques work and, therefore, when they will be most applicable to your sample preparation needs.
The Partition Coefficient » | Liquid / liquid Extraction »
Support-Assisted Liquid/Liquid Extraction » | Solid Phase Extraction »

 
5min - SPE Liquid-liquid extraction techniques
Learn about the fundamental science behind liquid-liquid and solid supported liquid-liquid extraction.  Furthermore, learn how to manipulate an extraction using parameters such as pH to affect analyte solubility and ultimately produce more efficient extractions.
Liquid / liquid Extraction II » | Liquid / liquid Extraction III » | Emulsions »
 
5min - SPE SPE Mechanisms
A comprehensive guide to solid phase extraction (SPE) which covers the different modes of SPE (i.e. polar, non-polar, ion exchange etc.), as well as, discussing each of the protocol steps involved in an SPE extraction.  This elearning module will furnish you with the knowledge required to choose the correct SPE mode, phase, and conditions resulting in highly efficient analyte extraction procedures.
Non-Polar SPE » | Polar SPE » | Cation-Exchange SPE » | Anion-Exchange SPE » |
Mixed-Mode SPE »
 
5min - SPE GC Sampling Techniques / SPME Solid Phase Microextraction
Solid phase microextraction (SPME) is a sample preparation technique that can be used to extract analytes from liquid matrices or headspace gas.  Microextraction techniques are becoming particularly amenable due to their eco-friendly nature.  These CHROMacademy pages will provide an understanding on how SPME works and which parameters require optimization for successful implementation.
Solid Phase Microextraction » | Important SPME Parameters »
 
5min - SPE The CHROMacademy Essential Guide Tutorial - 7 Key Secrets to Understanding Solid Phase Extraction
This webcast and tutorial provide a highly concentrated primer that will help you to understand all of the key stages in SPE protocol development.  This understanding is crucial for improving your SPE technique and ultimately to develop better solid phase extraction methods.
open Tutorial » | open Webcast »

 
 

 
 

 

 

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“Before anything else, preparation is the key to success” Alexander Graham Bell. This is certainly true in analytical chemistry. The correct choice of sample preparation method for a sample prior to analysis can have a myriad of benefits; properly prepared samples will produce simpler chromatograms free from interfering peaks, instrument parts will be protected from harmful contaminants which could result in break downs and the need for increased maintenance, and the sample will be compatible with the analysis method (correct pH, solvent etc.) minimizing deleterious chromatographic effects. This Essential Guide webcast will provide details of sample preparation techniques and guide you to the correct method for your sample; whether it is a simple liquid/liquid extraction or a more complex solid phase extraction.

Topics covered include:

  • What sample preparation techniques are available
  • What are the underlying chemical mechanisms which lead to selectivity within sample preparation
  • Which sample preparation techniques are applicable to particular sample types and applications
  • What are the relative merits and drawbacks of each commonly employed technique
  • How to choose the correct sample preparation technique

Key Learning Objectives:

  • Understand which sample preparation techniques are available
  • Learn how to select the appropriate sample preparation technique
  • Develop knowledge of the underlying chemistry that controls selectivity in sample preparation
  • Identify the advantages and disadvantages of a particular separation technique in relation to your sample

Who Should Attend:

  • Anyone working with HPLC stationary phases in use
  • Anyone working with GC
  • Anyone working with hyphenated techniques
  • Anyone who wishes to develop robust chromatographic methods

Dr. Douglas Raynie
Associate Research Professor,
Department of Chemistry and Biochemistry, South Dakota State University

Scott Fletcher
Business Development Manager
Crawford Scientific