Then learn the ability to repeat the analysis from ascorbic acid concentrations in the range as a straight duplicate concentration 10% RSD values found in the range of 15.22-22.46 (n = 10) show that the method CUPRAC on the device, there are high-precision developed for analysis of ascorbic acid standards.The threshold value analysis measuring equipment. It was found that the concentration of ascorbic acid the method measuring the paper CUPRAC on the device can be analyzed to 13.15 μ M.
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