# Unsupervised Pharmaceutical Polymorph Identification and Multicomponent Particle Mapping of ToF-SIMS Data by Non-Negative Matrix Factorization

> Research article (Analytical Chemistry, 2022) · cited 13× · AI/ML

**Wikidata**: [openalex:W4309095618](https://www.wikidata.org/wiki/openalex:W4309095618)  
**Source**: https://4ort.xyz/entity/unsupervised-pharmaceutical-polymorph-identification-and-multicomponent-particle-mapping-of-tof-sims-data-by-non-negativ