# Variety identification and age prediction of Pu-erh tea using graphene oxide and porphyrin complex based mid-infrared spectroscopy coupled with chemometrics

> Research article (Microchemical Journal, 2020) · cited 18× · AI/ML

**Wikidata**: [openalex:W3041143613](https://www.wikidata.org/wiki/openalex:W3041143613)  
**Source**: https://4ort.xyz/entity/variety-identification-and-age-prediction-of-pu-erh-tea-using-graphene-oxide-and-porphyrin-complex-based-mid-infrared-sp