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Sample preparation in analytical chemistry the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special importance when applied to the field of analytical chemistry.

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@article{osti_5504409 title = {Sample collection and preparation methods affecting mutagenicity and cytotoxicity of coal fly ash} author = {Mumford J. and Lewtas J.} abstractNote = {Reports by several investigators describing the biological activity of coal fly ash have presented a variety of results which in some cases are conflicting.

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