Operational Guidebook Development for FTIR Spectrum Two and Rotavapor R-300 Instruments in the Chemistry Research Laboratory, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya
Keywords:
Laboratory Instruments, Research and Development, Validity, PracticalityAbstract
The advancement of modern laboratory instruments has a significant impact on the quality of research in the field of chemistry. The Chemistry Research Laboratory of the Faculty of Mathematics and Natural Sciences (FMNS), Universitas Negeri Surabaya (UNESA), has important instruments, such as the PerkinElmer FTIR Spectrum Two and the Buchi Rotavapor R-300, but their use still faces obstacles due to the lack of practical guidance that suits the needs of learning and research. This study aims to develop a structured, contextual, and easy-to- understand internal operational guidebook to support the use of both instruments. The research method employed is Research and Development (R&D), adapted from the Borg & Gall model, which consists of five stages: product analysis, initial product development, expert validation, small-scale trials, and large-scale trials. Three expert lecturers conducted validation, while trials were conducted with laboratory assistants and chemistry students. The validation results showed an average score of 4.90 (very valid category). Small-scale trials conducted with laboratory assistants yielded a 100% positive response, while large-scale trials involving students achieved an average of 96% (classified as very practical). practicality observations showed a percentage of 100% for laboratory assistants and 98% for students in the very effective category. Thus, the developed operational guidebook has proven to be valid, practical, and effective, and can support occupational safety, enhance research quality, and strengthen UNESA's role as a leading center for the development of chemical science.
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