在新课程改革的背景下，中学化学实验必须依据现代新课程理念进行全方位、跨越式的改革。在保留传统的基础性、验证性实验的前提下，亟需增设一部分探究性、设计性实验，渗透绿色化学思想，为学生科学探究思维的生长提供更肥沃的土壤。本论文以生活污水的测定为例，旨在研究现代传感技术在中学化学实验中的应用，其中主要以紫外可见分光光度法为理论依据，以教学用手持传感技术色度计为实验仪器，给出探究性中学实验可行性方案。实验结果表明，采用该法进行生活污水的部分项目的检测有一定的准确度，具有可行性，并据此做出了相应的课堂教学设计。

Under the new curriculum reformation, a completely revolutionary reform of chemistry experiments in middle school is demanded on basis of modern educational concepts. It is high time that exploring and designing experiments guided by the idea of green chemistry be added into traditional experimental system in order to benefit the growth of students’ scientific research ability. This paper cites domestic sewage detection as an example, aiming at studying the application of modern sense technology in chemistry experiments of middle school. It works out exploring experimental scheme adapted for current situation in middle school by theoretical guidance of ultraviolet spectrophotometry and instrumental support of handheld colorimeter based on sense technology for teaching use. The experimental result suggests that there exists a certain degree of accuracy and practicability in applying the method in some sewage detection items. In view of the above, corresponding instructional design is proposed.