本文件给出了液态分散体系(如悬浊液、乳浊液、泡沫以及其混合物)稳定性表征应用的指导原则,包括:稳定性原理、分散体系状态变化的表征和预测分散体系货架期等内容。
本文件适用于液相分散体系不稳定性的排序、鉴别和量化等方法的选择。
本文件可应用于新产品设计、现有产品优化、产品生产及使用过程中的质量控制。本文件中分散体系稳定性用一定时间内一个或多个物理性质的变化来定义。稳定性可以实时观测和测定,也可以通过稳定性相关的物理量变化来预测。对于特别稳定的分散体系,可用合理地加速物理变化或加速老化的方法来缩短测定时间。估算产品的货架期,既要观测产品物理性质的变化速率,还要考虑用户对产品的要求。
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This standards specifies a guidance for physicochemical characterization of silver nanomaterials (AgNMs) prior to the biological effect evaluation,including of test methods of particle size,size distribution,Zeta potential,pH value,absorption peak in UV-Vis range,total Ag content and Ag chemical state.
This standard is applicable to characterize physicochemical properties of AgNMs,and those properties are related to biological effects of AgNMs powder or AgNMs solution.
定价: 432元 / 折扣价: 368 元 加购物车
This part of GB/T 24369 specifies characterization methods of the main optical properties for gold nanorods.
This part is applicable to the calculations of surface plasmon resonance peak dielectric sensitivity,relative fluorescence quantum yield and enhancement factor of surface enhanced Raman scattering.
The related properties of other noble metal nanostructures can also refer to the implementation.
定价: 600元 / 折扣价: 510 元 加购物车