Abstract

We used laser polarimetry for measuring glucose concentrations in buffd saline. The ratio of output voltages were heady related over the 25-250 mg/dl range when plotted by a least squares fit When L-alanine (15 mg/dl), an optically active amino acid. was added to the glucose solutions over the same 25-250 mg/dl range, it caused a near castant shift in optical rotation of linearly polarized light when compared to glucose alone. We determined the optical rotation of a sample by measuring changes in the system output voltage. To calibrate the voltage output voltage, we determined the ratios of a reference signal to different test signals. The lam were measured by using reference samples of glucose over the test range.

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