Hand-held NIR for cyanide in soil

Gas production plants are often contaminated with solid iron–cyanide complexes as a result of the coal gasification process. During remediation of such soils, knowledge of contaminant concentrations is vital, but laboratory methods are often expensive and time consuming. Researchers at the Brandenburg University of Technology, Cottbus, Germany, have used a Polychromix hand-held NIR spectrometer to determine the feasibbility of using the technique to determine cyanide concentration in soils. Whilst, NIR can detect higher concentrations and, as such, is useful for detecting “hot spots”, laboratory methods are still required for detection of lower concentrations.

The reserach is reported in Water, Air & Soil Pollution (doi: 10.1007/s11270-012-1298-y).

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