RAPID ACID VALUE TEST-KIT DEVELOPMENT FOR OLEOCHEMCIAL PRODUCT QUALITY CONTROL USING MICROFLUIDIC TECHNOLOGY

Pei Xuan Ho, Kai Seng Koh, Billie Yan Zhang Hiew, Chang Nong Lim, Yong Ren

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

This paper describes the design and implementation of a cost effective micro total analytical devices (µTADs) that aims to determine the acid value of oleochemcial product. This device aims to provide a simple and effective acid-base titration technique in an aqueous solution in microscale. The device utilised colorimetry approach to determine the acid value of the oleochemical product by measuring the distance travelled by the colour change from pink to colourless during titration to quantify the molarity of the acid concentration. The µTADs consists of a 3D-printed polymeric design holder and a chemically treated cotton thread. The thread will show color change when different acid sample is dropped onto the thread.The distance of colour change is plainly visible with naked eyes and measured using a ruler scale in 2 minutes. The developed µTADs on acid value for samples from the oleochemical sector demostrated 98% accuracy, as compared to conventional titration process. In addition, the µTADs can improve significantly in terms of chemical used by reducing the reagent requirement by 99.5%, as well as a further cost reduction of 143 folds while maintining the accuracy of acid value measurement.This work provides a great alternative solution to acid value determination at a faster, more portable, and customizable technique that required less technical experience.

Original languageEnglish
Title of host publicationProceedings of ASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2024
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791888155
DOIs
Publication statusPublished - 2024
EventASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2024 - Nottingham, United Kingdom
Duration: 5 Aug 20247 Aug 2024

Publication series

NameProceedings of ASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2024

Conference

ConferenceASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2024
Country/TerritoryUnited Kingdom
CityNottingham
Period5/08/247/08/24

Keywords

  • 3D Printing
  • Acid Value
  • Free Fatty Acid
  • Palm Oil
  • PETG
  • Thread-based Microfluidics

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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