Then learn the ability to repeat the analysis from gallic acid at concentrations in the range of concentrations as a straight 10% RSD values found repeated in the range of-7.31 15.12 (n = 10) show that the method CUPRAC on the device, there are high-precision developed for analysis of gallic acid standards.The threshold value analysis measuring equipment. It was found that the concentration of gallic acid the method CUPRAC on the paper measuring devices can be analyzed to 5.70 μ M.
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