色谱2026，Vol.44Issue(5)：597-604,8.DOI:10.3724/SP.J.1123.2025.09027
开放性实验:二氧化硫的微萃取及智能手机比色法辅助的快速定量分析
Open-ended experiment:microextraction and smartphone-assisted colorimetric quantification of sulfur dioxide
摘要
Abstract
Open-ended experiment courses play a crucial role in cultivating practical skills,in-novative thinking and scientific literacy of undergraduate students.In this project,an open-ended experiment was designed and implemented with the theme of quantitative detection of sulfur dioxide(SO2)gas pollutants using smartphone-based colorimetry.During the experiment,volatile SO₂ in samples was enriched using headspace single-drop microextraction.In the single-drop system,SO2 reacted with silver nanoparticles,inducing a distinct color change.SO2 concentration was quantified through colorimetric analysis using a smartphone as a portable detection platform.This experiment guided students to employ smartphones as a novel portable detection platform,inspiring the in-novative application of diverse scientific tools.The design covered fundamental analytical chemistry skills,including calibration curve construction,sample quantification and colorimetric analysis.Advanced techniques,such as microextraction and nanoparticle-mediated color reactions,were also introduced.This open-ended experiment course enables undergraduates to understand the core principles of colorimetric analysis in environmental monitoring,fostering a comprehension of the close link between theory and practical techniques in real research contexts.Throughout the ex-periment,students experience both the rigor and creativity of scientific exploration,while rec-ognizing the broader significance of scientific experimentation in environmental protection,societal development and national technological advancement.Consequently,the course facilitates the internalization of scientific spirit,social responsibility and professional mission,achieving a deep integration of professional competence with values-based education.关键词
智能手机比色法/单滴微萃取/二氧化硫/光信号/开放性实验Key words
smartphone-based colorimetry/single-drop microextraction/sulfur dioxide/optical signal/open-ended experiment分类
化学化工引用本文复制引用
张亮,刘畅,朱佳,张景慧,沈薇,唐盛..开放性实验:二氧化硫的微萃取及智能手机比色法辅助的快速定量分析[J].色谱,2026,44(5):597-604,8.基金项目
国家自然科学基金(22276080,22574067) （22276080,22574067）
江苏省自然科学基金(BK20211340,BK20241025) （BK20211340,BK20241025）
江苏省高等教育教改研究立项课题(2023JSJG271) （2023JSJG271）
江苏科技大学本科教育教学改革研究课题(XJG2022039). National Natural Science Foundation of China(Nos.22276080,22574067) （XJG2022039）
Natural Science Foundation of Jiangsu Province,China(Nos.BK20211340,BK20241025) （Nos.BK20211340,BK20241025）
Jiangsu Higher Education Teaching Re-form Research Project(No.2023JSJG271) （No.2023JSJG271）
Undergraduate Teaching Reform Research Project,Jiangsu University of Science and Technology(No.XJG2022039). （No.XJG2022039）
