death_place death_date birth_place nationality field work_institutions birth_date known_for residence article_title name alma_mater
san diego , ca 4 march 1998 frohna , mo united states chemist iowa state university 26 april 1919 icp and icp-ms united states velmer a. fassel
 velmer a. fassel iowa state university
velmer a. fassel

velmer a. fassel -lrb- 26 april 1919 -- 4 march 1998 -rrb- is an american chemist who developed the inductively coupled plasma -lrb- icp -rrb- and demonstrated its use as ion source for mass spectrometry .
