What the measurement provides
- Separation of volatile compounds
- Identification by mass-to-charge ratio
- Quantification of trace organic substances
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Chemical & Physical Analysis
Gas Chromatography–Mass Spectrometry (GC-MS)
Combines gas-chromatography separation with mass-spectrometry identification. The GC separates volatile compounds; the MS identifies them by mass-to-charge ratio. Used to identify unknown components and quantify trace organics.
Sample requirements
- Minimum sample quantity: 1 mL.
- Only organic liquid or gaseous samples with a maximum concentration of 50 ppm are acceptable.
- The sample must be completely free of moisture and submitted in a proper sample container.
- State start temperature, end temperature, hold temperature, hold time, and heating rate (°C/min).
Oven programme fields are printed on each sample row of the proforma.