Internal calibration personnel must have the necessary technical knowledge, practical skills, training, and authorization to perform calibration accurately and reliably. Competence should be verified through training, practical assessment, and periodic reassessment to ensure traceable results and compliance with ISO/IEC 17025.
Optimize your GC performance with proper gas management. Using high-purity gases, maintaining purifiers, and preventing leaks improves accuracy, extends column life, and reduces downtime.
Need help with your GC system or carrier gas conversion? Contact Applied Analytical Systems Ltd. (AASL) at aas@aasnig.com.
Gas chromatography (GC) detectors are classified as general or selective. General detectors include the thermal conductivity detector (TCD), which detects both organic and inorganic compounds by measuring changes in thermal conductivity, and the flame ionization detector (FID), which is highly sensitive to organic compounds but destroys analytes during detection. Selective detectors include the nitrogen–phosphorus detector (NPD) for nitrogen- and phosphorus-containing compounds and the electron capture detector (ECD) for compounds with electronegative groups, such as halogens. Gas chromatography–mass spectrometry (GC/MS) combines separation and mass analysis, providing both compound identification and highly sensitive detection.
The Adam Luna Series combines elegant design with exceptional weighing performance, offering the accuracy, reliability, and versatility required in modern laboratories. Featuring a high-contrast backlit display, intuitive colour-coded controls, and multiple weighing applications, Luna balances deliver fast, precise, and user-friendly operation. Backed by robust construction, seamless USB/RS-232 connectivity, and a 5-year warranty, the Luna Series is an ideal solution for quality control, research, education, and industrial laboratories.
A Gas Chromatography (GC) column is a critical component that directly impacts analytical performance and separation efficiency. To maximize its lifespan and maintain optimal results, proper installation, column conditioning, effective sample preparation, the use of column guards, and regular bake-out procedures are essential. These practices help prevent contamination, reduce column damage, and ensure consistent, precise chromatographic analysis.
The Flame Ionization Detector (FID) is a highly sensitive and widely used detector in gas chromatography for measuring organic compounds in gas streams. It operates by detecting ions produced when hydrocarbons are burned in a hydrogen flame, providing accurate and reliable analysis of volatile organic compounds. Due to its sensitivity, low maintenance, and broad detection range, the FID remains a preferred choice for environmental monitoring, emissions testing, and laboratory applications.