Sampling and Subsampling

Overview

How often do samples just appear unannounced in your analytical laboratory? There is a general belief that the role of the analyst is to become involved at the sample preparation phase of the measurement process which, in reality, is the third phase, following planning and sampling. This confusion is not an intentional act of neglect, but rather a misunderstanding about the role of the trace analyst.

In addition, the analytical literature is not rich in information or direction. Therefore, the trace analyst has little to go on during the sampling process. The fact is that sampling is critical to the effort in achieving reliable results and forming a sound foundation for the decision making process. The purpose of this chapter is to present the fundamentals of sampling and subsampling in a way that will inform and educate.

Much of this information was taken from the references, as well as the titles in the next section. On a personal note, I am truly grateful to the authors of these publications for taking the time and care to produce books containing information so vital to the analytical process.

Was this helpful?  Tell a Friend | Let us know