Metabolomics has emerged as a powerful tool for addressing biological questions. Liquid chromatography coupled with mass spectrometry (LC-MS) is widely used for metabolic characterization, including ...

The pre-module is a quick reference guide, focusing on the practical steps for conducting a SENS survey. It is not meant to replace already existing survey manuals. To avoid duplication, the user is ...

Cochran (1977) outlines eleven steps in the planning of a survey. Good sampling methods must exist in the environment of all of these steps. These steps are (1) a statement of the survey objectives, ...