- 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。
- In this paper, the author have proved that the rare earth auxiliary can be used to improve the dyeing abilily of acid dye on the polyamide fabric.
- 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.