Difference between revisions of "Sample preparation (analytical chemistry)"

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In [[analytical chemistry]], '''sample preparation''' refers to the ways in which a sample is treated prior to its analysis. Preparation is a very important step in most analytical techniques, as the techniques are often not responsive to the analyte in its ''in-situ'' form, or the results are distorted by interfering species.
{{wikipedia::Sample preparation}}
==Notes==
This article is a direct transclusion of [https://en.wikipedia.org/wiki/Sample_preparation the Wikipedia article] and therefore may not meet the same editing standards as LIMSwiki.
 
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Latest revision as of 20:09, 20 September 2022

In analytical chemistry, sample preparation (working-up) refers to the ways in which a sample is treated prior to its analyses. Preparation is a very important step in most analytical techniques, because the techniques are often not responsive to the analyte in its in-situ form, or the results are distorted by interfering species. Sample preparation may involve dissolution, extraction, reaction with some chemical species, pulverizing, treatment with a chelating agent (e.g. EDTA), masking, filtering, dilution, sub-sampling or many other techniques. Treatment is done to prepare the sample into a form ready for analysis by specified analytical equipment. Sample preparation could involve: crushing and dissolution, chemical digestion with acid or alkali, sample extraction, sample clean up and sample pre-concentration.

References

  • "Sample Preparation". Retrieved 2007-11-09.

Notes

This article is a direct transclusion of the Wikipedia article and therefore may not meet the same editing standards as LIMSwiki.