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Design and construct of a new detector for gas chromatography based on continuous negative corona discharge
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10.1063/1.3589263
/content/aip/journal/rsi/82/5/10.1063/1.3589263
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/5/10.1063/1.3589263

Figures

Image of FIG. 1.
FIG. 1.

Image of the corona cell.

Image of FIG. 2.
FIG. 2.

Electrical circuit used to record the corona signal.

Image of FIG. 3.
FIG. 3.

Townsend curves; (a) The effect of temperature on the negative corona discharge current in pure nitrogen; d, electrode distance is 1 cm; f, nitrogen flow rate is 50 ml/min; (b) The effect of electrode distance on the negative corona discharge current in pure nitrogen; T, the temperature is 70 °C; f, the flow rate is 50 ml/min; (c) The effect of gas flow rate on the negative corona discharge current in pure nitrogen; d, electrode distance is 1 cm; T, temperature is 25 °C.

Image of FIG. 4.
FIG. 4.

Schematic diagram of the corona discharge detector coupled to the gas chromatograph.

Image of FIG. 5.
FIG. 5.

Signal obtained from injecting 1 μl solution of chloroform in toluene with different chloroform concentrations to the gas chromatograph.(a) Chloroform concentration, 78.1 ng/ml; gain, 10;(b) chloroform concentration, 840 ng/ml; gain, 2.

Image of FIG. 6.
FIG. 6.

The calibration curve of chloroform.

Tables

Generic image for table
Table I.

The optimized conditions of the GC and the continuous negative corona discharge cell for injection of 1 μl solution of chloroform in toluene to gas chromatography.

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/content/aip/journal/rsi/82/5/10.1063/1.3589263
2011-05-25
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Design and construct of a new detector for gas chromatography based on continuous negative corona discharge
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/5/10.1063/1.3589263
10.1063/1.3589263
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