Analyst
Sensitive detection of nonfluorescent solutes in small amounts of dilute aqueous solutions through photothermally induced reflectivity modulation at glass/aqueous solution interfaces
Analyst, 2025, 150,819-826DOI: 10.1039/D4AN01247J, PaperShu-hei Urashima, Ryoji KusakaPhotothermal reflectance (PTR) spectroscopy was proposed for detecting weak absorption of light. A limit of detection of 75 nM in a probe volume of 1.7 fL was achieve…