An important improvement in Ferron-timed spectrophotometry
Related Experiment Video
Updated: May 9, 2026

Determination of the Photoisomerization Quantum Yield of a Hydrazone Photoswitch
Published on: February 7, 2022
Jing Zhang1, Fang Chang, Yijin Ren
1Department of Biology and Food, Zhejiang Pharmaceutical College, Ningbo 315100, China. 13777064842@163.com
Abstract:
Ferron dosage ([Ferron]) is key to ferron-timed spectrophotometry (ferron assay). In order to clarify some important questions, the following studies were conducted: (1) The effect of [Ferron] on the sensitivity of total aluminum (AlT) determination was experimentally investigated and ²⁷Al nuclear magnetic resonance (²⁷Al NMR) spectroscopy was used to verify our developed Ferron assay; (2) the chemical equilibrium calculation was employed to analyze the effect of [Ferron] on the determination of AlT; and (3) the main reason for insufficient [Ferron] was further analyzed. This is the first study to standardize a ferron assay operating procedure.
Related Concept Videos
Spectrophotometry: Introduction
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
IR Spectrometers
UV–Vis Spectrometers
Fluorescence and Phosphorescence: Instrumentation

