An Introduction to the National Environmental METHODS Index.

Autor: Keith, Lawrence H., Brass, Herbert J., Sullivan, Daniel J., Boiani, James A., Alben, Katherine T.
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Zdroj: Environmental Science & Technology. 4/15/2005, Vol. 39 Issue 8, p173A-176A. 4p.
Abstrakt: This article presents information related to National Environmental METHODS Index (NEMI). NEMI requires only a modern browser and an Internet connection. Links are provided to the full methods in the public domain or, if they are copy-righted, to their commercial sources. The most pertinent information for comparing the methods is listed. This includes the method identifier (typically a method number), source and descriptive name, detection level with reporting units and the type of detection level, bias (expressed either as percent recovery or as rates of false-positive and false-negative conclusions), precision (as relative standard deviation), spiking level used to generate precision data, major instrumentation and relative cost of the method (expressed as one to four dollar signs).
Databáze: GreenFILE