In most ionization detectors, the large field comes from a thin wire with a positive high-voltage potential; this same thin wire collect the electrons from the avalanche and guides them towards the readout electronics.
22.
Subsequent studies of K + Br 2 resulted in the discovery that the hot-wire surface ionization detector they were using was potentially contaminated by previous use, and had to be pre-treated to obtain reliable results.
23.
Since the TCD is less sensitive than the flame ionization detector and has a larger dead volume it will not provide as good resolution as the FID . The TCD is not as sensitive as other detectors but it is non-specific and non-destructive.
24.
The thermal conductivity detector, described in 1954 by N . H . Ray, was the foundation for several other methods : the flame ionization detector was described by J . Harley, W . Nel, and V . Pretorius in 1958, and James Lovelock introduced the electron capture detector that year as well.
25.
"' William Rudolph Kanne "', also known as "'W . Rudolph Kanne "'( 7 July 1913 24 October 1985 ), was a physicist, inventor and pioneer in the field of gas flow through ionization detectors, a member of the group responsible for the first self-sustained nuclear chain fission reaction at Staggs Field in Chicago, and participated in the Manhattan Project at the Chicago, Oak Ridge and Hanford sites.
