Field (Matrix) Spike

Field (Matrix) Spike - A sample prepared at the sampling point (i.e., in the field) by adding a known mass of the target analyte to a specified amount of the sample. Field matrix spikes are used, for example, to determine the effect of the sample preservation, shipment, storage, and preparation on analyte recovery efficiency (the analytical bias).

[Category=Quality Assurance ]

Source: Massachusetts Department of Environmental Protection, 20 March 2011 09:37:23, http://www.mass.gov/dep/cleanup/laws/glossa01.htm

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Matrix Spike - A sample prepared by adding a known mass of a target analyte to a specified amount of matrix sample for which an independent estimate of the target analyte concentration is available. Spiked samples are used, for example, to determine the effect of the matrix on a method's recovery efficiency.

[Category=Quality Assurance ]

Source: Massachusetts Department of Environmental Protection, 22 March 2011 09:39:33, http://www.mass.gov/dep/cleanup/laws/glossa01.htm