【摘要】 环境水样、某些水产品和蔬菜等食品中残留的甲醛（FA）对环境安全和人类健康构成了严重的威胁，因此，发展快速、灵敏、高选择性和低成本的FA检测方法对食品安全和环境保护至关重要。本研究合成了一种以1,8-萘酰亚胺为荧光团、酰肼基为FA特异性识别位点的新型荧光探针NIPh。此探针利用FA与识别位点反应前后光诱导电子转移（Photoinduced electron transfer, PET）过程的激活与抑制作用，实现了对FA的高效检测。实验结果表明，NIPh探针响应迅速，4 min内即可完成检测，对FA的检出限低至0.16μmol/L。将此探针用于大白菜和金针菇等农产品以及池塘水和自来水等水样中FA含量的测定，回收率>96%，相对标准偏差<4%，展现出良好的实际应用价值。更多还原

【Abstract】 Residual formaldehyde(FA) in environmental water samples, certain aquatic products, vegetables, and other food items poses a severe threat to environmental safety and human health. Therefore, the rapid, sensitive and selective detection of FA is very essential for food safety and environmental protection. In this work, a new 1,8-naphthalimide-based fluorescent probe NIPh for FA detection was synthesized by using hydrazide group as a reactive site for FA and naphthalimide as a fluorophore. Based on the photoinduced electron transfer(PET)process, the prepared probe NIPh showed a remarkable fluorescence lighting-up response towards FA in aqueous medium with high selectivity, fast response(within 4 min) and a low limit of detection(0.16μmol/L). Further, the probe NIPh was also successfully applied as optical probe to detection of FA in cabbage, enoki mushroom, pond and tap water samples, with recoveries over 96%, and relative standard deviations less than 4%, demonstrating tremendous potential in FA monitoring in the field of food industry and environment.更多还原