Figure 1: (A) Broad-spectrum drug screening by high-performance liquid chromatography; (B) Organic acid profiling by gas chromatography mass spectrometry

A. Broad-spectrum drug screening by HPLC-DAD
   
Blood:
T : Toluene
I : Internal Standard
B : Benzoic Acid
     
  Urine:
  H : Hippuric Acid
  U : Unknown
  B : Benzoic Acid
  I : Internal Standard
       
B. Organic Acid Profiling by GC-MS
 
  Blood:
  B : Benzoic Acid
  H : Hippuric Acid
     
     
  Urine:
  B : Benzoic Acid
  H : Hippuric Acid