Analysis of substituted benzene compounds in groundwater using solid-phase microextraction

Article Abstract:

The presence of the organic contaminants benzene, ethyl benzene, toluene and three xylene isomers in groundwater is analyzed using solid-phase microextraction (SPME). SPME is a simple, fast and inexpensive alternative to such analysis techniques as liquid-liquid extraction and solid-phase extraction. The steps in the SPME process include the insertion of the fiber into the aqueous sample, the establishment of equilibrium, the insertion of the fiber into a gas chromatographic injection port and the desorption and analysis of the organic analytes.

Research, Methods, Water, Underground, Groundwater, Contamination, Organic water pollutants, Organic water pollution, Extraction (Chemistry)

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Analysis of environmental air samples by solid-phase microextraction and gas chromatography ion trap mass spectrometry

Article Abstract:

Volatile organic compounds in air were extracted and concentrated using a new technique called solid-phasemicroextraction (SPME). With the technique, analytes are extracted directly from the air and desorbed into a gas chromatograph for separation and quantification. SPME is capable of detecting analytes at the part per trillion to sub part per billion concentration levels. Tests show that SPME has a precision of 1.5-6% relative standard deviation.

Basic Chemical Manufacturing, Industrial Organic Chemicals, Organic Chemicals, Analysis, Organic compounds, Volatile organic compounds, Air

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Field sampling and determination of formaldehyde in indoor air with solid-phase microextraction and on-fiber derivation

Article Abstract:

A new sampling and analysis method for formaldehyde in indoor air is tested. The method is based on the use of solid-phase microextraction and gas chromatography is tested.

All Other Basic Organic Chemical Manufacturing, Air Pollution Control, Waste Management and Remediation Services, Industrial organic chemicals, not elsewhere classified, Ontario, Formaldehyde, Brief Article, Measurement, Environmental aspects, Air pollution

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