Close
  Indian J Med Microbiol
 

Figure 3: Ultraviolet-visible spectroscopy of the marker compounds in Orthosiphon stamineus extracts: Rosmarinic acid (a), 3'-hydroxy-5,6,7,4'- tetramethoxyflavone (b), sinensetin (c) and eupatorin (d). The spectra were collected by scanning the peaks at their start, apex and end

Figure 3: Ultraviolet-visible spectroscopy of the marker compounds in <i>Orthosiphon stamineus</i> extracts: Rosmarinic acid (a), 3'-hydroxy-5,6,7,4'- tetramethoxyflavone (b), sinensetin (c) and eupatorin (d). The spectra were collected by scanning the peaks at their start, apex and end