MPT-3 自動滴定装置




  • 材料安定性評価
  • 凝集傾向評価
  • 凝集剤評価 
  • 等電点測定 
  • 保管条件評価
見積依頼 デモ依頼 お問い合わせ

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.


システム構成 Size and zeta potential vs. pH titrations on Zetasizer Advance Series (zeta potential only on Zetasizer Lab model)
溶媒の適合性 Aqueous samples
最小試料量 5 mL
pH 範囲 1 - 13
試料に接触する部分の材質 Silicone tubing, PTFE, Polycarbonate, Polypropylene
電源 100 – 240V 50 – 60Hz 45VA required
サイズ範囲 180 mm x 400 mm x 370 mm (W x D x H)
重量 6.2 kg
含むもの MPT-3 Autotitrator, liquid filled micro pH probe kit, disposable sample cups, magnetic stirrer.