text: Yo, check it out, listen up, here's the deal,
  I got a fresh method, gonna make it real.
  I developed a carboxylated multiwall carbon nanotubes,
  Modified that glassy carbon electrode, no time to lose.
  
  We're talkin' methyldopa detection, it's the game,
  Studyin' that modified electrode, it's not the same.
  SEM, stripping voltammetry, impedance spectroscopy,
  Chronocoulometry, we're diggin' deep, come follow me.
  
  MTD's oxidation, it's all goin' down,
  On the surface of that GCE, cast with CMWCNTs, profound.
  Peak current's off the charts, it's amazin' to see,
  Adsorbed on the electrode surface, that's the key.
  
  Catalytic properties, we got that covered too,
  Oxidation onset potential, it's lower, it's true.
  Under optimized conditions, we got it right,
  Linear calibration curve, day and night.
  
  Two concentration ranges, 0.1 to 30, and 30.0 to 300.0 μM,
  Detection limit's 0.08 μM, we're havin' fun.
  R.S.D.%, lower than 3.0%, that's the precision we claim,
  With five samples tested, we're winnin' this game.
  
  This modified electrode, it's a sensor, you see,
  Detectin' MTD in pharmaceuticals and human pee.
  Results are satisfactory, we're makin' the grade,
  So step aside, we got a breakthrough, we ain't afraid.