Near Real Time Monitoring of TDI Vapour Using Ion Mobility Spectrometry (IMS)*

An epidemiology study of lung function changes of toluene diisocyanate foam workers in the United Kingdom

“…A Graseby Programmable Vapour Monitor (PVM), a portable ion-mobility spectrometer with a rapid response time [6], was used poststudy to monitor the peak concentrations from some of the manufacturing processes. It con®rmed that high TDI concentrations were present where TDI was being used or where hot cushions or blocks were being handled.…”

Detection ofsalmonella typhimurium by hand-held ion mobility spectrometer: A quantitative assessment of response characteristics

“…The rugged instrumentation found in CAM engineering and intrinsic features of IMS have fostered opportunities for nonmilitary applications of IMS in industrial venues or for field screening. [2][3][4] Thus, CAM-based analyzers might be viewed as advanced and portable detectors for use in direct screening of specific airborne vapors; alternatively, the indirect determination of substances with IMS analyzers might be possible through the detection of reaction products. If suitable volatility is exhibited by the ultimate chemical detected, nonvolatile reactive substances or even microbiological materials might be screened with the use of IMS.…”

Pulsed electron beams in ion mobility spectrometry

“…A further hint towards recombination reactions was also reported in the same paper, showing that the decay behavior of the RIP changed when the general composition of ions in the reaction region was altered by adding 1,2-dibromoethane, which forms negative ions in IMS devices. TDI is, in contrast to DMMP, investigated using the negative mode of the IMS (Brokenshire et al 1990, Roehl 1991. One major consequence is that in this mode no dimer signals are formed, so the relationship between the signal intensities is much simpler.…”