Mineral oil (or Hydrocarbon oil) in water samples is determined by liquid-liquid extraction, followed by a clean-up step on Florisil and GC-FID analysis.
Environmental contamination by hydrocarbon index is one of the most important applications in environmental analysis.
The workstation can automatize extraction and clean-up of mineral oil in water samples according with EN ISO 9377-2. The automatic extraction starts from 16 ml of sample, to wich is added 2 ml of hexane; everything is mixed by vortex for 1 minute.
The clean-up procedure uses Tip dispersive SPE instead of classical column chromatography or solid phase extraction. The sample is dried over sodium sulphate and cleaned by passing over Florisil. Florisil permits to remove more polar, co-extracted analytes, such us lipids, chlorinated substances and more.
The mixtures of salts are putted into disposable tips that can guarantee an efficient dispersive solid phase extraction.
The extraction process is faster, more reliable, and easier. This enables time and labor savings, while improving consistency and repeatability of the extraction
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