Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement
The simulation of the gas flow field and electrostatic field in the photoionization detector by COMSOL was conducted based on principle investigation in the present study. Under the guidance of simulation results, structural optimization was carried out to significantly reduce the dead volume of the...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2018/5651315 |
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| author | Qi Zhou Sixiang Zhang Xu Zhang Xu Ma Wei Zhou |
| author_facet | Qi Zhou Sixiang Zhang Xu Zhang Xu Ma Wei Zhou |
| author_sort | Qi Zhou |
| collection | DOAJ |
| description | The simulation of the gas flow field and electrostatic field in the photoionization detector by COMSOL was conducted based on principle investigation in the present study. Under the guidance of simulation results, structural optimization was carried out to significantly reduce the dead volume of the ionization chamber, and finally, the relationship between offset voltage and collection efficiency was obtained which led to a remarkable increase in the collection efficiency of charged ions in the photoionization detector. Then an ionization chamber with low interference and fast response was developed. Then experiment was performed with toluene as a VOCs gas under the condition of optimal gas flow rate of 50 ml, UV lamp ionization energy of 10.86 eV. The results showed that the ion collection efficiency reached 91% at a bias voltage of 150 V. Moreover, a preferred linearity of 99.99% was obtained, and a ppb level of LOD can be achieved. The determination results well-fitted the relationship between offset voltage and the response value obtained in the simulation. |
| format | Article |
| id | doaj-art-15833df6191d4c4a923cf4f7ebc7227a |
| institution | Kabale University |
| issn | 1176-2322 1754-2103 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-15833df6191d4c4a923cf4f7ebc7227a2025-02-03T05:52:49ZengWileyApplied Bionics and Biomechanics1176-23221754-21032018-01-01201810.1155/2018/56513155651315Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds MeasurementQi Zhou0Sixiang Zhang1Xu Zhang2Xu Ma3Wei Zhou4School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaSchool of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300130, ChinaSchool of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300130, ChinaSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaThe simulation of the gas flow field and electrostatic field in the photoionization detector by COMSOL was conducted based on principle investigation in the present study. Under the guidance of simulation results, structural optimization was carried out to significantly reduce the dead volume of the ionization chamber, and finally, the relationship between offset voltage and collection efficiency was obtained which led to a remarkable increase in the collection efficiency of charged ions in the photoionization detector. Then an ionization chamber with low interference and fast response was developed. Then experiment was performed with toluene as a VOCs gas under the condition of optimal gas flow rate of 50 ml, UV lamp ionization energy of 10.86 eV. The results showed that the ion collection efficiency reached 91% at a bias voltage of 150 V. Moreover, a preferred linearity of 99.99% was obtained, and a ppb level of LOD can be achieved. The determination results well-fitted the relationship between offset voltage and the response value obtained in the simulation.http://dx.doi.org/10.1155/2018/5651315 |
| spellingShingle | Qi Zhou Sixiang Zhang Xu Zhang Xu Ma Wei Zhou Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement Applied Bionics and Biomechanics |
| title | Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement |
| title_full | Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement |
| title_fullStr | Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement |
| title_full_unstemmed | Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement |
| title_short | Development of a Novel Micro Photoionization Detector for Rapid Volatile Organic Compounds Measurement |
| title_sort | development of a novel micro photoionization detector for rapid volatile organic compounds measurement |
| url | http://dx.doi.org/10.1155/2018/5651315 |
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