# Discrimination and source correspondence of black gel inks using Raman spectroscopy and chemometric analysis with UMAP and PLS-DA

> Research article (Chemometrics and Intelligent Laboratory Systems, 2022) · cited 33× · AI/ML

**Wikidata**: [openalex:W4223424932](https://www.wikidata.org/wiki/openalex:W4223424932)  
**Source**: https://4ort.xyz/entity/discrimination-and-source-correspondence-of-black-gel-inks-using-raman-spectroscopy-and-chemometric-analysis-with-umap-a