基于Arduino开源泵的自动滴定仪。
Autotitrator based on an Arduino Open Source Pump.
作者信息
Del Castillo-Santaella Teresa, Maldonado-Valderrama Julia, Fernandez-Rodriguez Miguel Angel
机构信息
Department of Applied Physics, Faculty of Sciences, University of Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain.
Department of Physical Chemistry, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
出版信息
HardwareX. 2023 Aug 7;15:e00464. doi: 10.1016/j.ohx.2023.e00464. eCollection 2023 Sep.
Acid-base titration is a quantitative analysis that enables knowing the quantity of acidic or basic groups present in a solution sample. It consists in the addition of base or acid to the solution sample while monitoring the pH to reach a neutral pH. The titration can be automated and here we present a low cost Arduino based Open Source Pump (OSPump) modified to act as an automated titrator with an obsolete but reliable Metrohm 713 pH meter. Our device is 50 times less expensive than second hand units from the pH meter manufacturer and inherently open to customization. We present two validation cases of study, including the lipolysis of a vegetable olive oil in water emulsion, characterized by the OSPump Titrator.
酸碱滴定是一种定量分析方法，可用于测定溶液样品中酸性或碱性基团的数量。它包括向溶液样品中加入碱或酸，同时监测pH值，直至达到中性pH值。这种滴定可以实现自动化，在此我们展示了一种基于低成本Arduino的开源泵（OSPump），它经过改装后可与一台过时但可靠的万通713型pH计一起用作自动滴定仪。我们的设备比pH计制造商的二手设备便宜50倍，并且本质上易于定制。我们展示了两个验证研究案例，包括以OSPump滴定仪为特征的水包油型植物油乳液的脂解作用。
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