The quantitative determination of some mitragyna oxindole alkaloids after separation by thin-layer chromatography. IV. Comparison of ultra-violet spectrophotometry, colorimetry and densitometry as methods for the quantitative determination of oxindole alkaloids in plant material.
作者信息
Shellard E J, Alam M Z
出版信息
J Chromatogr. 1968 May 21;35(1):72-82. doi: 10.1016/s0021-9673(01)82351-7.