# Ppb-Level Photoacoustic Detection of Chloroform Using Four-Microphone Array

> Research article (Analytical Chemistry, 2025) · cited 11× · AI/ML

**Wikidata**: [openalex:W4406408695](https://www.wikidata.org/wiki/openalex:W4406408695)  
**Source**: https://4ort.xyz/entity/ppb-level-photoacoustic-detection-of-chloroform-using-four-microphone-array