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exists between the two grids. After components are ionized in the detector, they enter the region between the two grids, causing current to pass from one to the other. This current is amplified and is the signal generated by the detector. The higher the concentration of the component, the more
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Some early FIDs actually used two metal grids as their ion detectors. However, more efficient designs have been developed, so few current ion-type detectors use two metal grids. But the principle is the same, and it can be easiest to think of the detector in this manner.
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with varying methods of ionizing the components eluting from the gas chromatograph's column.
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Purification instrument used to detect and separate ionized materials from solutions
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source to produce helium ions, which in turn ionize the components
246:. Instrumentation and Automation for the Separation Sciences.
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240:"Ionization-based detectors for gas chromatography"
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159:ions are generated, and the greater the current.
277:Bartle, Keith D.; Myers, Peter (2002-09-10).
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220:(DID), but uses a different sort of spark
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156:electric potential difference (voltage)
175:(FID) -- uses a flame to produce ions
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214:Pulsed discharge ionization detector
58:adding citations to reliable sources
283:TrAC Trends in Analytical Chemistry
146:An ion detector is analogous to a
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69:"Gas chromatography ion detector"
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279:"History of gas chromatography"
45:needs additional citations for
238:Poole, Colin F. (2015-11-20).
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295:10.1016/S0165-9936(02)00806-3
218:Discharge ionization detector
204:Discharge ionization detector
256:10.1016/j.chroma.2015.02.061
244:Journal of Chromatography A
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198:Helium ionization detector
188:Photo-ionization detector
179:Electron capture detector
173:Flame ionization detector
325:Chromatography detector
216:(PDD) -- similar to a
167:Types of Ion Detectors
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340:Gas chromatography
320:Gas Chromatograph
206:(DID) -- uses an
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250:: 137–153.
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225:References
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141:detectors
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314:See also
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