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Determining the Ibuprofen Concentration in Liquid-Filled Gelatin Capsules to Practice Collecting and Interpreting Experimental Data, and Evaluating the Methods and Accuracy of Quality Testing
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Wheate, Nial J.; Apps, Michael G.; Khalifa, Hazer; Doughty, Alan; Patel, Alpesh Ramanlal – Journal of Chemical Education, 2017
A laboratory experiment to determine the concentration of the anti-inflammatory drug ibuprofen in liquid gelatin capsule dosage forms, suitable for undergraduate chemistry or pharmacy students, is described. Either individually, or in small teams, the students digest two 200 mg capsules in a KOH solution. While the capsules are digesting the…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
Learning Laboratory Chemistry through Electronic Sensors, a Microprocessor, and Student Enabling Software: A Preliminary Demonstration
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Zhang, Qing; Brode, Ly; Cao, Tingting; Thompson, J. E. – Journal of Chemical Education, 2017
We describe the construction and initial demonstration of a new instructional tool called ROXI (Research Opportunity through eXperimental Instruction). The system interfaces a series of electronic sensors to control software via the Arduino platform. The sensors have been designed to enable low-cost data collection in laboratory courses. Data are…
Descriptors: Science Instruction, Chemistry, College Science, Secondary School Science