Innovative Practice of“Virtual-Pretreatment and Real-Post Detection”Segmented Teaching Mode in Instrumental Analysis Experimental Teaching:Microwave Digestion Virtual-Pretreatment Coupled with ICP-OES Real Detection
Abstract This study innovatively proposes a“virtual-pretreatment and real-post detection”segmented teaching mode.This mode is specifically designed to address the issues of high risk,high cost,and low efficiency associated with microwave digestion pre-processing in the instrumental analysis experiment of“determination of multiple trace elements in food by inductively coupled plasma optical emission spectrometry(ICP-OES)”.Built upon a self-developed virtual platform for microwave digestion,the mode integrates virtual pretreatment with physical detection,thereby establishing a four-dimensional pedagogical framework comprising“learning,operation,assessment,and evaluation”and a three-dimensional assessment system encompassing“virtual experiment,physical operation and outcome output”.Teaching practice demonstrates that,compared with traditional experimental teaching mode,this mode optimizes teaching resources through the integration of virtual and real components.It not only mitigates instructional risks and curtails costs but also enhances students’ safety awareness,experimental skills and digital literacy,thereby markedly improving teaching quality and learning effectiveness.It thus provides valuable implications for the digital transformation of high-risk pretreatment experiments and carries substantial demonstrative significance for advancing experimental teaching reform.
ZHAO Ya-Ming, QI Ju-Rui, ZHENG Hai-Jiao, LI Song-Rui, PENG Yu, LIANG Hong-Wei. Innovative Practice of“Virtual-Pretreatment and Real-Post Detection”Segmented Teaching Mode in Instrumental Analysis Experimental Teaching:Microwave Digestion Virtual-Pretreatment Coupled with ICP-OES Real Detection[J]. Chinese Journal of Chemical Education, 2025, 46(24): 25-31.
