概述
Zetasizer Ultra 融合了功能强大的 DLS 与 ELS 系统,它采用了非侵入背散射 (NIBS) 和独特的多角动态光散射 (MADLS) 技术来测量颗粒与分子大小。
NIBS 的多用性和灵敏度可适用广泛的浓度范围,而 MADLS 则能让您在这些关键测量当中更精细地了解样品粒度分布。
Zetasizer Ultra Red Label 的 MADLS 扩展功能可直接分析颗粒浓度。 颗粒浓度的测量适合于广泛的材料,无需或只需很少稀释,并且使用快捷,这一切使其成为一种理想的筛选技术。 这是 Zetasizer Ultra 的一项独特功能,甚至可以运用于以前非常难测量的病毒和类病毒颗粒 (VLP) 等样品。
一系列可抛弃和可重复使用的样品池可优化不同样品体积和浓度的测量,其中包括新的低容量可抛弃粒度测量池套件,由于它可以抑制对流,所以既能进行样品量小到 3 µL 的粒度测量,也扩展了DLS 测量的粒度上限范围
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特征
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具有恒流模式的M3-PALS可以在高导电介质中测量Zeta电位和电泳迁移率
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“自适应相关”算法能生成可靠且可重复的数据,同时计算速度超过以往的两倍,可在减少样品制备的情况下更快速地执行更多可重现的粒度测量,实现更具代表性的样品视图
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以样品为中心的ZS Xplorer软件可以实现灵活的指导式使用,并可轻松构建复杂的模型
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可选的 MPT-3 自动滴定仪可帮助研究 pH 值变化的影响
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通过深度学习实现的数据质量系统可以评估粒度数据质量问题,并针对如何改进结果提供明确的建议
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新的样品助手附件减少了手动更换样品的时间,而不影响数据质量
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滤光片转盘提供荧光滤光片以及垂直和水平偏振片,以实现分析灵活性
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可抛弃型毛细管粒度测量样品池提供了无损、低容量(最低 3 µL)分析,并且粒度上限范围可达到 15 μm
Dive deeper with these free resources
Adaptive Correlation: How to get better DLS data with less time and effort.
Drug Delivery Vector Characterization Using Zetasizer Advance
Key applications
Zetasizer Ultra is ideal for a wide range of applications across many industries, including pharmaceuticals and mining. Find out more below about the key applications for Zetasizer Ultra.
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- Lipid nanoparticles
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Zetasizer Ultra provides rapid, reliable characterization of lipid nanoparticles and viral vectors.
Measure particle size, concentration, polydispersity, and zeta potential to assess stability, yield, and surface charge across formulation development and manufacturing workflows to refine processes and ensure batch-to-batch reproducibility.
- Viruses
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Speed up analysis of viruses with fast size and concentration measurements. MADLS® technology enables simultaneous size and concentration measurement, determining viral titer and distribution in minutes.
Monitoring these key parameters with Zetasizer Ultra helps you optimize processes, maintain quality, and reduce development time.
- Ceramics
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The strength of ceramics is linked to particle size, and the Zetasizer Ultra is ideally placed to measure this. Al2O3 samples are often made of differently-sized particles which can easily be identified using MADLS.
In this 0.1% w/v sample, the two particle size populations would not be distinguishable with a single angle DLS measurement.
Resources
Improved component resolution with Multi-Angle DLS (MADLS)
Drug Delivery Vector Characterization Using Zetasizer Advance
Excellent system for characterizing nanoparticles in terms of their Physicochemical properties (size, concentration, polydispersity, and zeta potential). I like the system because it consumes only a few microliters of precious samples to determine and analyze all the properties mentioned above. I highly recommend this system for particle analysis."
Ashwini Mishra — AAVinue Inc.