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• Technical Notes

  EST Purge and Trap

  Purge and Trap is a sample preparation technique widely used in environmental laboratories for the analysis of volatile organic compounds (VOCs) in water, soil and other sample matrices. Purge and Trap is used in regulatory methods such as EPA 524, 624 and
• Technical Notes

  GC-MS Tune Report

  Automatic tuning of a GC-MS is essential for ensuring accurate and reliable results. It involves optimizing various instrument parameters to achieve optimal sensitivity, resolution and mass accuracy. A properly tuned GC-MS system provides confidence that the instrument is performing as expected, which

• Technical Notes

  Thermal Conductivity Detector (TCD) Guide

  A TCD utilizes the differences in thermal conductivity. Thermal conductivity is the measure of how effectively a material transfers heat. Materials with a low thermal conductivity will act as an insulator by resisting heat flow whereas a material with a high thermal
• Technical Notes

  Screening for unknowns using GC-MS

  When a sample contains unknown compounds, the best place to start is with a general GC-MS method. This method should include a slow oven ramp with a long hold at the end, this will ensure that all of the sample is eluted
• Technical Notes

  Backflash: Causes, Impact and Prevention

  There are a variety of libraries available for different applications. SCION Instruments offers various libraries including NIST, Wiley and Pfleger/Maurer/Weber (PMW) with customisable libraries and the ability to automatically search in multiple libraries. The most commonly used library is NIST. For the