2A2-L04 半導体センサISFETを用いた多検体自動pH測定の検討

概要

論文の詳細を見る
Automatic pH measurement sensor system was developed using a flow-through type differential ISFET sensor. Measuring conditions such as suctioning of sample, washing, and measuring time were investigated, and was operated 90 sec consisting of 60 sec of washing period, 10 sec of waiting/moving period, 20 sec of measruing period. In measuring period, about 35 μl of sample solution was withdrawn to the space around a measurement ISFET, and the change of differential source potential was measured. Absolute values of error for four sample solutions with weak buffering ability were less than 0.098 pH. Through these experiments, high-speed and automated pH measurement will be possible by using ISFET sensors even for sample solutions of weak buffer ability.
一般社団法人日本機械学会の論文
2009-05-25