Open AccessA method for the determination of ethylenediamine in workroom air.
Author(s) -
Lars H. Hansen,
B Kristiansson,
Jan Sollenberg
Publication year - 1984
Publication title -
scandinavian journal of work, environment and health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.621
H-Index - 103
eISSN - 1795-990X
pISSN - 0355-3140
DOI - 10.5271/sjweh.2359
Subject(s) - ethylenediamine , oxalic acid , desorption , isotachophoresis , hydrochloric acid , chromatography , adsorption , cellulose , chemistry , inorganic chemistry , organic chemistry , electrode , electrolyte
An ethylenediamine-air mixture was generated in a dynamic gas mixing apparatus, and three different sampling techniques were tested. The analysis was performed using isotachophoresis. Sampling in an impinger flask containing hydrochloric acid (20 mmol/l) gave a quantitative recovery. Desorption losses were noticed when silica gel adsorption tubes were used. Cellulose filter support pads impregnated with oxalic acid were laborious to prepare, and the recovery was high only when freshly prepared filters were used. The use of impingers was found to be the most satisfactory method, and it was used for air monitoring in two factories handling ethylenediamine.