Microfluidic Device for Phosphate Detection on Environmental Waters

Abstract

Phosphate levels in ambient waters have traditionally been monitored manually using sampling techniques in which samples are collected in various designated areas or locations and brought to a laboratory for analysis and experimentation using traditional methods. The study's primary goal is to create a microfluidic system that recognizes and detects phosphate in ecological waters. The sample water is mixed with a vanadate-molybdate reagent to generate a yellow color. The absorbance of this resulting solution is analyzed by a spectral sensor integrated into the microfluidic chip to detect phosphate in the sample water. A two-tailed sample t-test was used to evaluate and was categorized to the alternative hypothesis if the resulting data are far from the expected values. After gathering the results and performing the statistical test, the result falls under the confidence level of 0.0521. Therefore, there is no significant difference between the manual collection and the microfluidic system.