Why Sample Prep Affects Measurement Error

Sample preparation affects how accurate a chemical measurement will be. In analytical chemistry, a sample must be treated carefully before analysis so it can serve as a standard or an unknown sample.

Errors in analytical methods are usually grouped as random or systematic. Random errors come from...

Proper sample preparation is a critical first step in all types of chemical analyses.

Suitable sample preparation is essential to reduce the potential for error. Error can be mitigated in several ways: from the selection of proper glassware to attention to significant figures in calculations.

For many analytical instruments a uniform...