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- W2053208548 abstract "Simple and sensitive determination of chromium (III) ions (Cr3+) has potential applications for detecting trace contamination in environment. Here, the assay is based on the enhancement of resonance Rayleigh scattering (RRS) by Cr3+-induced aggregation of citrate-capped gold nanoparticles (AuNPs). Transmission electron microscopy (TEM) and UV–vis absorption spectroscopy were employed to characterize the nanostructures and spectroscopic properties of the Cr3+–AuNP system. The experiment conditions, such as reaction time, pH value, salt concentration and interfering ions, were investigated. The combination of signal amplification of Cr3+–citrate chelation with high sensitivity of RRS technique allow a selective assay of Cr3+ ions with a detection limit of up to 1.0 pM. The overall assay can be carried out at room temperature within only twenty minutes, making it suitable for high-throughput routine applications in environment and food samples." @default.
- W2053208548 created "2016-06-24" @default.
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- W2053208548 date "2014-01-01" @default.
- W2053208548 modified "2023-10-06" @default.
- W2053208548 title "Highly sensitive detection of chromium (III) ions by resonance Rayleigh scattering enhanced by gold nanoparticles" @default.
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- W2053208548 doi "https://doi.org/10.1016/j.saa.2013.09.058" @default.
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