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Real-Time Detection of Aniline in Hexane by Flow Injection Ion Mobility Spectrometry.

Authors
Burroughs-GE; Eiceman-GA; Garcia-Gonzalez-L
Source
NIOSH 1991 Feb:95-102
Link
NIOSHTIC No.
00210415
Abstract
Advantages of ion mobility spectrometry (IMS) in the real time detection of aniline (62533) were discussed. In order to characterize IMS behavior as an effluent sensor, a flow injection IMS device was evaluated in which an IMS was used as a detector for a heated injector port. An IMS drift tube was used with an acetone doped reaction region and a membrane inlet. Five microliter replicate samples were introduced and vaporized in the inlet in 15 to 90 second intervals and drawn into the IMS. Detection limits were about 0.5 milligrams/liter for 5 microliter aliquots. Sampling intervals could be reduced to 15 seconds for all concentrations below 40 micrograms/liter above which a working range could be considered to approximately 100 milligrams/liter. Four solvents were evaluated as interferences. All affected the peak area for aniline, although the causes arose through different mechanisms. The authors conclude that the use of IMS as a flow sensor for aniline in organic solvents should be restricted at present to samples free of compounds with strong proton affinities and solvents which do not exhibit strong dipoles.
Keywords
Organic-solvents; Analytical-methods; Chemical-analysis; Analytical-chemistry; Analytical-instruments; Amines; Screening-methods;
CAS No.
62-53-3;
Publication Date
19910212
Document Type
Conference/Symposia Proceedings;
Fiscal Year
1991
NTIS Accession No.
NTIS Price
Source Name
Field Screening Methods for Hazardous Wastes and Toxic Chemicals. Second International Symposium, February 12-14, 1991. Sponsored by U.S. EPA; U.S. DOE; U.S. Army Toxic and Hazardous Materials Agency; U.S. Army Chemical Research Development and Engineering Center; U.S.A.F.; Florida State Univ.; National Environmental Technology Applications Corp.; and NIOSH
State
FL;
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