A Fast Colourimetric Assay for Lead Detection Using Label-Free Gold Nanoparticles (AuNPs)
نویسندگان
چکیده
A sensitive colourimetric method for lead (PbII) detection is reported in this paper using a common tripeptide, glutathione (GSH), and label-free gold nanoparticles (AuNPs). A limit of detection of 6.0 ppb in water was achieved and the dynamic linear range was up to 500 ppb. Selectivity over fourteen potential interfering metal ions was tested and most of these metal ions do not interfere with the method.
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ورودعنوان ژورنال:
- Micromachines
دوره 6 شماره
صفحات -
تاریخ انتشار 2015