- This method was an improvement on acid dye direct titration.
- METHODS A solvent extraction acid dye spectrophotometry method was used with the detection wavelength at 412 nm.
方法 采用溶剂萃取酸性染料比色法测定含量 ,检测波长4 12nm。
- An acid dye colorimetry method was developed for the determination of cyclovirobuxine D and its tablets .
- Methods The total alkaloids were tested at 420 nm with acid dye colorimetry in which atropine sulfate was used as standard reference.
- Methods:Using the ultrasonic cleaner to extract the herbs, the alkaloid was tested at 416 nm with the spectroscopy by acid dye.
方法 :对半夏药材采用超声提取 ,依据酸性染料比色法的原理 ,在 4 16nm波长下进行比色测定药材中总生物碱。