The Nobel Prize in Chemistry2002(2002年诺贝尔化学奖) "for the development of methods for identification and structure analyses of biological macromolecules" Koichi Tanaka 1/4 of the prize Japan Shimadzu Corp Kyoto,Japan John B.Fenn 1/4 of the prize USA "for their development of soft desorption Virginia Commonwealth ionisation methods for mass spectrometric University analyses of biological macromolecules" Richmond,VA,USAThe Nobel Prize in Chemistry 2002（2002年诺贝尔化学奖） "for the development of methods for identification and structure analyses of biological macromolecules" "for their development of soft desorption ionisation methods for mass spectrometric analyses of biological macromolecules" Koichi Tanaka 1/4 of the prize Japan Shimadzu Corp. Kyoto, Japan John B. Fenn 1/4 of the prize USA Virginia Commonwealth University Richmond, VA, USA