Roscoe H E. Bunsen Memorial Lecture. J. Chem. Soc. 1900, 77;513~5542 Bugge F D G, Das Buch der grassen Chemiker, Berlin, VerlagChemie,1930,Band 2,S.78~91;3 Partington J R. A History of chemistry,Lomdon,Macmillan andCo Ltd,1964, 9 ; 265~2934 Bunsen R W. a. Ann. Chem. Pharm, 1866,Band 138,S. 257-296; b. ibid, 1853, Band 86, S. 265 ~291; c. Z. anal. Chem.1871,Band 10,S. 391-940; d. Ann. Chem. Pharm, 1868,Band 148,S. 269~293;5 山岗望.化学史窗.日本:东京内田老鹤圃新社,1975:57~1016 山岗望.化学史传.日本:东京内田老鹤圃新社,1979:239~305