Standardbezug

Standardbezug, also known as reference standard or standard sample, is a highly purified chemical substance of known identity and purity. It serves as a benchmark for analytical testing. Standardbezüge are essential for calibrating analytical instruments, validating analytical methods, and quantifying the concentration of analytes in unknown samples. The purity and characterization of a standardbezug are critical, and they are typically accompanied by a certificate of analysis detailing their properties and assigned values.

These standards are used across various fields, including pharmaceuticals, environmental testing, food safety, and forensics. For example, in pharmaceutical quality control, a standardbezug of an active pharmaceutical ingredient (API) is used to ensure that manufactured batches meet the required purity and potency specifications. In environmental monitoring, standardbezüge of pollutants are used to accurately measure their levels in air, water, or soil samples.

The preparation and certification of standardbezüge involve rigorous procedures to ensure their reliability. This often includes multiple purification steps, extensive analytical characterization using techniques such as spectroscopy and chromatography, and stability testing. Traceability to national or international measurement standards is also a key aspect, ensuring that results obtained using a particular standardbezug are comparable across different laboratories and over time. The proper use and handling of standardbezüge are crucial for obtaining accurate and reliable analytical data.