From the leaf of lotus (Nelumbo nucifera), total alcaloids were extracted and purified in using chloroform in alcaline medium and 3% phosphoric acid solution.In mixing with bromothymol blue in buffer solution at pH=7, the complex was measured at λ =615± 1nm on spectrophotometer. For UV spectrophotometry, total alcaloids in solution were measured at λ=270nm
alkaloids ; Plant Leaves ; Lotus ; Spectrophotometry ; Colorimetry ;

Extract of Panacrine is material of preparing Panacrin drug that inhibited tumor in cancer treatment. Study on standardization of extract of Panacrine was carried out in order to stabilize Panacrin production process. Qualitative criteria were humidity <10%, total ash <9%, total content of extract in ethanol 50% should be more than 80%, and extract should have positive reaction with saponin of Panax notoginseng Burk., alcaloid of Carica papaya L. and Crinum latifolium L
Danazol ; Therapeutics ; neoplasms ; Pharmaceutical Preparations ;