Text this: A simple high-performance liquid chromatography coupled to fluorescence detection method using column-switching technique for measuring urinary 1-hydroxypyrene from environmental exposure

 __   __   __   __  __    __   _    _             
 \ \\/ //  \ \\/ // \ \\ / // | || | ||     ___   
  \   //    \ ` //   \ \/ //  | || | ||    /   || 
  / . \\     | ||     \  //   | \\_/ ||   | [] || 
 /_//\_\\    |_||      \//     \____//     \__ || 
 `-`  --`    `-`'       `       `---`       -|_|| 
                                             `-`