# internal standard

> chemical analysis method

**Wikidata**: [Q900775](https://www.wikidata.org/wiki/Q900775)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Internal_standard)  
**Source**: https://4ort.xyz/entity/internal-standard


## References

1. [Source](https://lingualibre.fr/wiki/Q214555)
2. Freebase Data Dumps. 2013
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)