Anongnad Teprek, Vincentia Poetri Artono, Weerawan Waiyawat, Aujchara Limsakul, Juwadee Shiowatana, and Atitaya Siripinyanond* The use of spot counting on an origami paper analytical device (SC-PAD) was proposed for end point detection in titrimetric analysis. The device was designed to contain several paper layers by folding the paper into multi-layers. Each layer contained reaction zone, … Continue reading Semi-quantitative Analysis by Spot Counting on Origami Paper-Based Device for Endpoint Detection in Titrimetric Analysis