Journal
ELECTROANALYSIS
Volume 22, Issue 12, Pages 1357-1363Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200900508
Keywords
Chemical warfare agent; RTIL; Electrochemical sensor; Nitrogen mustard-2; DPSCA; Ionic liquids; Sensors
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Greener electrochemical detection method developed for chemical warfare agent (CWA) nitrogen mustard-2 (NM-2) using room temperature ionic liquid (RTIL). The diffusion coefficient calculated for NM-2 in acetonitrile and RTIL was 1.57 x 10(-4) cm(2)/s and 1.82 x 10(-10) cm(2)/s, respectively. NM-2 addition to RTIL enhanced RTIL conductivity. Moreover, heterogeneous rate constant (0.192 s(-1)), transfer coefficient (0.231) and the number of electron involved (1.0) were deduced for NM-2 in RTIL. The calibration plot showed linearity between 2.94 x 10(-5) and 1.17 x 10(-3) M with detection limit 1.47 x 10(-5) M (S/N=3). The large number of available RTIL can be used for greener detection of toxic CWAs.
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