AuNP-based colorimetric sensor for As3+ tested in rice and water

Overview

A gold nanoparticle (AuNP)-based colorimetric sensor for As3+ detection was developed and tested in rice extract and water matrices. The paper reports spike-recovery experiments in rice samples to validate the method; no unspiked occurrence measurements of As in rice are provided.

Key numbers

• LOD, linear range, and recovery in rice extract and water in full paper.
• No occurrence data for As in rice; all rice tests are spiked spike-recovery validations.

Methods (brief)

AuNP colorimetric detection of As3+ (arsenite). Speciation-sensitive: detects As(III) specifically. Rice matrix spike-recovery validation. Not equivalent to LC-ICP-MS iAs occurrence measurement.

Implications

Certification: Method development; rice matrix validation but no occurrence data contribution. Courses: Demonstrates AuNP-based colorimetric sensors for arsenic; note As(III)-specific detection vs. regulatory iAs measurement.

Wiki pages updated on ingest

• Arsenic
• Rice

Update history

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