Shamis Khaleel Ibraheem’s scientific contributions

... Each extract spectrum reflects the retention time in the column, and the peaks detected correspond to the relative abundance (%) of bioactive compounds found in specific regions. By comparing the mass spectra of the detected components with the mass spectra of known components available in the National Institute of Standards and Technology library, the bioactive phytochemical compounds of V. negundo were identified [6]. Compound concentrations were determined from the GC peak area of the total ion current. ...

Reference:

Chemical profiling of bioactive compounds in the methanolic extract of wild leaf and callus of Vitex negundo using gas chromatography-mass spectrometry