GC-MS (Gas Chromatography-Mass Spectrometry) is an advanced analytical tool used for the detection, identification, and quantification of volatile and semi-volatile organic compounds. It is extensively applied in environmental monitoring, forensic toxicology, food safety, pharmaceutical analysis, and chemical manufacturing for its unmatched sensitivity and selectivity in complex sample matrices.
In GC-MS workflows, a sample is vaporized and separated through a gas chromatography column based on compound volatility and polarity. The separated components are then ionized and analyzed by a mass spectrometer, which identifies compounds based on their mass-to-charge ratio (m/z) and generates a unique spectral fingerprint for each.
GC-MS is ideal for analyzing volatile organic compounds (VOCs), pesticides, industrial solvents, drugs of abuse, contaminants, and residual solvents in pharmaceuticals. In forensic science, it’s the gold standard for drug screening, arson investigation, toxicology assessments, and identification of unknown substances. In environmental applications, GC-MS is used to monitor air, water, and soil pollutants with high precision.
Modern GC-MS systems may feature single quadrupole, triple quadrupole (GC-MS/MS), or TOF mass analyzers, offering varying levels of resolution and detection limits. Systems are often paired with autosamplers, headspace analyzers, and thermal desorption units to accommodate a wide range of sample types. Data acquisition and analysis software enable rapid peak identification, quantification, and spectral library matching.
At Wasteless Bio, we supply high-quality, pre-owned GC-MS systems from leading manufacturers. Each listing includes full details such as column compatibility, ionization method (EI/CI), scan speed, sensitivity thresholds, and software packages. Buying GC-MS instruments through Wasteless Bio empowers laboratories to run sophisticated analytical workflows affordably while promoting circular lab sustainability by extending the lifecycle of precision equipment.
GC-MS (Gas Chromatography-Mass Spectrometry) is an advanced analytical tool used for the detection, identification, and quantification of volatile and semi-volatile organic compounds. It is extensively applied in environmental monitoring, forensic toxicology, food safety, pharmaceutical analysis, and chemical manufacturing for its unmatched sensitivity and selectivity in complex sample matrices.
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