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Black boxes in analytical chemistry: University students misconceptions of instrumental analysis
基金项目:The authors wish to thank to the University of Valencia research project "Desarrollo de herramientas para el diagndstico y evaluacion de errores eonceptuales y metodologicos en la ensenanza de la Quimica instrumental" for financial support.
摘    要:Misconceptions of chemistry and chemical engineering university students concerning instrumental analysis have been established from coordinated tests, tutorial interviews and laboratory lessons. Misconceptions can be divided into: (1) formal, involving specific concepts and formulations within the general frame of chemistry; (2) operational/topical, dealing with specific capabilities, problems and operations in chemistry; (3) methodological, associated to peculiar methods of analytical chemistry and data treatment; and (4) social, regarding the relation of analytical data with the social frame. Such misconceptions define a non-structured view of analytical methods, procedures and protocols related with analytical instrumentation. Instruments are frequently viewed as an autonomous, error-free black box providing non-structured data with no need of calibration or control, whereas weak relationships are established between data and aims along the analytical process.

关 键 词:分析化学  仪器分析  大学生  黑匣子  社会结构  非结构性  化学工程  化学制剂
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