【摘 要】
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Metal nanoparticles (NPs) have been widely used in various fields due to the unique properties.The accurate and fast characterization of the concentration of me
【机 构】
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StateKeyLaboratoryofPrecisionMeasurementTechnologyandInstruments,TsinghuaUniversity,Beijing,100084
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Metal nanoparticles (NPs) have been widely used in various fields due to the unique properties.The accurate and fast characterization of the concentration of metal NPs colloid is highly demanded for the synthesis, metrology, and applications of NPs.The mass concentration (MC) and the number concentration (NC) of NP colloid are often demanded to determine.However, the commonly used inductively coupled plasma mass spectrometry (ICP-MS) can only measure the MC of NPs, which is also time-consuming and destructive to NPs.Although some spectroscopic methods [1,2] have been developed for the characterization of NPs, they can only deal with monodisperse spherical NPs or very short nanorods (NRs).
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