# Effects of data pre-processing methods on classification of ATR-FTIR spectra of pen inks using partial least squares-discriminant analysis (PLS-DA)

> Research article (Chemometrics and Intelligent Laboratory Systems, 2018) · cited 45× · AI/ML

**Wikidata**: [openalex:W2890485159](https://www.wikidata.org/wiki/openalex:W2890485159)  
**Source**: https://4ort.xyz/entity/effects-of-data-pre-processing-methods-on-classification-of-atr-ftir-spectra-of-pen-inks-using-partial-least-squares-dis