MPT-3 自动电位滴定仪


MPT-3是Zetasizer Advance 系列的一款性价比高的配件,用于自动测定Zeta电位和/或尺寸与pH的比值,帮助您了解材料随pH值的变化规律。 


  • 材料的稳定性
  • 团聚
  • 絮凝
  • 零净电荷点(等电点)
  • 储存条件
索取报价 要求演示 联系销售部门

Features and benefits

pH is one of the main influences on the zeta potential of materials. Understanding how your samples behave over a range of pH conditions is important in determining when they are most, or least, electrostatically stable, or even if their particle size will change (for instance, by agglomeration or dispersion) over a specific pH range. 

The titration method step built into our ZS Xplorer software allows users to quickly and easily perform even complex multi-step titrations, increasing productivity by automating the whole titration process. 

MPT-3 Method NEW.png

Results can be evaluated from within the ZS Xplorer software and any iso-electric points are automatically calculated for you. 

How it works

The MPT-3 Autotitrator incorporates a pump to carry the sample from the reaction vessel to the Zetasizer, pH probe and measurement electronics, and three syringes for three titrants.

The syringes have low volume displacement and well-characterized plunger diameters. This allows the accurate addition of very small amounts of titrant, as low as 0.28 µL, which enables precise targeting of the desired pH value. This is particularly important at pH values close to neutrality.

The Autotitrator supports the use of two concentrations of acid or base in order to generate a very wide pH range. The system will automatically use the appropriate titrant to provide the minimum amount of additive with the maximum accuracy.

The whole measurement sequence can be stored as a method for subsequent re-use, allowing you to standardize your methods for specific materials. 

Use of a degasser for titrants is recommended to prevent air-locks forming in the titrant lines.


系统兼容性 Size and zeta potential vs. pH titrations on Zetasizer Advance Series (zeta potential only on Zetasizer Lab model)
溶剂兼容性 Aqueous samples
最小样品容积: 5 mL
pH范围 1 - 13
与样品接触的材料 Silicone tubing, PTFE, Polycarbonate, Polypropylene
电源功率 100 – 240V 50 – 60Hz 45VA required
尺寸 180 mm x 400 mm x 370 mm (W x D x H)
重量 6.2 kg
包括 MPT-3 Autotitrator, liquid filled micro pH probe kit, disposable sample cups, magnetic stirrer.