1. Message from the chief editor

   • Osamu Suzuki

   Editorial 30 June 2006 Pages: 1 - 1

2. Two simple methods for enantiomeric analyses of urinary amphetamines by GC/MS using deuterium-labeled l-amphetamines as internal standards

   • Zhao Liu
   • Kenji Hara
   • Mitsuyoshi Kageura

   Original Article 09 April 2006 Pages: 2 - 7

3. Determination of some antiallergic drugs in human plasma by direct-injection high-performance liquid chromatography-tandem mass spectrometry

   • Koichiro Fujimaki
   • Xiao-Pen Lee
   • Keizo Sato

   Original Article 13 April 2006 Pages: 8 - 16

4. On-site determination of nerve and mustard gases using a field-portable gas chromatograph-mass spectrometer

   • Hiroyuki Sekiguchi
   • Koji Matsushita
   • Akiyoshi Sato

   Original Article 27 April 2006 Pages: 17 - 22

5. Evaluation of isotopically labeled internal standards and methods of derivatization for quantitative determination of cocaine and related compounds

   • Sheng-Meng Wang
   • Meng-Yen Wu
   • Dennis V. Canfield

   Original Article 16 June 2006 Pages: 23 - 35

6. Direct detection of serum psilocin glucuronide by LC/MS and LC/MS/MS: time-courses of total and free (unconjugated) psilocin concentrations in serum specimens of a “magic mushroom” user

   • Tooru Kamata
   • Mayumi Nishikawa
   • Hitoshi Tsuchihashi

   Original Article 17 June 2006 Pages: 36 - 40

7. Conversion of γ-hydroxybutyric acid to a fluorescent derivative: a method for screening

   • Kumi Matsuda
   • Naoyuki Asakawa
   • Hideyuki Yamada

   Original Article 17 June 2006 Pages: 41 - 47

8. Rapid and sensitive identification and determination of Urine Luck by ESI-MS after reduction of chromate

   • Kayoko Minakata
   • Kunio Gonmori
   • Osamu Suzuki

   Short Communication 11 April 2006 Pages: 48 - 50