Color wheel standard on the color of glass color be used as a calibration standard color solution for correction.
2
本仪器由标准色盘、观察光学镜头、光源、比色管组成。
The apparatus consists of the standard color plate, optical lens, the light source was observed, colorimetric tube.
3
乌蕨提取物经过聚酰胺柱层析，收集乙醇洗脱部分，以芦丁作标准曲线，用比色法测定总黄酮。
Using polyamide column chromatography, gathering effluent fraction of ethanol, applying rutin as standard curve, we estimated the content of crude flavonoids.
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