Substances with a low molecular weight (< 900 Da) are classified as small molecules and are ubiquitous in nature and in the human body. Small molecules can be found in the environment where they are produced as secondary ...

Detection of the small molecule 25-hydroxyvitamin D (25(OH)D) as the most relevant marker for vitamin D supply suffers from a high variability of results using the current detection methods, such as high-performance liquid ...