Evaluation of direct reading photoionization detector performance under various operational parameters
Background: A hand-held portable direct-reading monitor, including photoionization detector (PID) is renowned for its good sensitivity, considerable dynamic range, and nondestructive vapor detection ability in comparison to the tardy response of the PID in gas chromatography (GC), which its applic...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Kerman University of Medical Sciences
2021-05-01
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| Series: | Environmental Health Engineering and Management |
| Subjects: | |
| Online Access: | http://ehemj.com/article-1-752-en.html |
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| author | Amir Hossein Khoshakhlagh Farideh Golbabaei Mojtaba Beygzadeh Francisco Carrasco-Marín Seyed Jamaleddin Shahtaheri |
| author_facet | Amir Hossein Khoshakhlagh Farideh Golbabaei Mojtaba Beygzadeh Francisco Carrasco-Marín Seyed Jamaleddin Shahtaheri |
| author_sort | Amir Hossein Khoshakhlagh |
| collection | DOAJ |
| description | Background: A hand-held portable direct-reading monitor, including photoionization detector (PID)
is renowned for its good sensitivity, considerable dynamic range, and nondestructive vapor detection
ability in comparison to the tardy response of the PID in gas chromatography (GC), which its application
has been restricted. In this study, the performance of a PID system (MultiRAE Lite) was evaluated as a
replacement of GC in the measurement of toluene in a dynamic adsorption system.
Methods: The test was done at different relative humidity levels (30%, 50%, and 80%), temperatures (21,
30, 40°C), and toluene concentrations (20, 100, 200, and 400 ppm).
Results: The PID achieved 48% of all measurements meeting the comparison criterion. The results
showed that the performance of the PID could be altered by the variables. The best performance of
the PID was at temperature of 21°C, the relative humidity of 50%, and concentration of 200 ppm with
the percentage of readings achieving the criterion of comparison to 58%, 54%, and 52%, respectively.
The averages of the PID readings (mean ± SD at 200 ppm= 207.9 ± 8.7) were higher than the reference
method measurements averages (mean ± SD at 200 ppm= 203.5 ± 5.8). The regression analysis of the
toluene results from the PID and the reference method results indicated that the measurements were
significantly correlated (r2 = 0.93).
Conclusion: According to the results, the device response is linear. Therefore, the findings are acceptable
in adsorption studies. In this way, the measurement of the sample concentration should be performed
using the same instrument before and after the reactor in order to calculate the adsorption efficiency. |
| first_indexed | 2024-12-22T12:04:13Z |
| format | Article |
| id | doaj.art-731ad90937c84afbb38803a31abf3fcb |
| institution | Directory Open Access Journal |
| issn | 2423-3765 2423-4311 |
| language | English |
| last_indexed | 2024-12-22T12:04:13Z |
| publishDate | 2021-05-01 |
| publisher | Kerman University of Medical Sciences |
| record_format | Article |
| series | Environmental Health Engineering and Management |
| spelling | doaj.art-731ad90937c84afbb38803a31abf3fcb2022-12-21T18:26:29ZengKerman University of Medical SciencesEnvironmental Health Engineering and Management2423-37652423-43112021-05-018212312810.34172/EHEM.2021.15Evaluation of direct reading photoionization detector performance under various operational parametersAmir Hossein Khoshakhlagh0Farideh Golbabaei1Mojtaba Beygzadeh2Francisco Carrasco-Marín3Seyed Jamaleddin Shahtaheri4Department of Occupational Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, IranDepartment of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Energy, Materials and Energy Research Center, Tehran, IranCarbon Materials Research Group, Faculty of Science, Avda. Fuente Nueva s/n, University of Granada, SpainDepartment of Occupational Health Engineering, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, IranBackground: A hand-held portable direct-reading monitor, including photoionization detector (PID) is renowned for its good sensitivity, considerable dynamic range, and nondestructive vapor detection ability in comparison to the tardy response of the PID in gas chromatography (GC), which its application has been restricted. In this study, the performance of a PID system (MultiRAE Lite) was evaluated as a replacement of GC in the measurement of toluene in a dynamic adsorption system. Methods: The test was done at different relative humidity levels (30%, 50%, and 80%), temperatures (21, 30, 40°C), and toluene concentrations (20, 100, 200, and 400 ppm). Results: The PID achieved 48% of all measurements meeting the comparison criterion. The results showed that the performance of the PID could be altered by the variables. The best performance of the PID was at temperature of 21°C, the relative humidity of 50%, and concentration of 200 ppm with the percentage of readings achieving the criterion of comparison to 58%, 54%, and 52%, respectively. The averages of the PID readings (mean ± SD at 200 ppm= 207.9 ± 8.7) were higher than the reference method measurements averages (mean ± SD at 200 ppm= 203.5 ± 5.8). The regression analysis of the toluene results from the PID and the reference method results indicated that the measurements were significantly correlated (r2 = 0.93). Conclusion: According to the results, the device response is linear. Therefore, the findings are acceptable in adsorption studies. In this way, the measurement of the sample concentration should be performed using the same instrument before and after the reactor in order to calculate the adsorption efficiency.http://ehemj.com/article-1-752-en.htmltoluenetemperatureshumidityadsorptionchromatographygas regression analysisresearch design |
| spellingShingle | Amir Hossein Khoshakhlagh Farideh Golbabaei Mojtaba Beygzadeh Francisco Carrasco-Marín Seyed Jamaleddin Shahtaheri Evaluation of direct reading photoionization detector performance under various operational parameters Environmental Health Engineering and Management toluene temperatures humidity adsorption chromatography gas regression analysis research design |
| title | Evaluation of direct reading photoionization detector performance under various operational parameters |
| title_full | Evaluation of direct reading photoionization detector performance under various operational parameters |
| title_fullStr | Evaluation of direct reading photoionization detector performance under various operational parameters |
| title_full_unstemmed | Evaluation of direct reading photoionization detector performance under various operational parameters |
| title_short | Evaluation of direct reading photoionization detector performance under various operational parameters |
| title_sort | evaluation of direct reading photoionization detector performance under various operational parameters |
| topic | toluene temperatures humidity adsorption chromatography gas regression analysis research design |
| url | http://ehemj.com/article-1-752-en.html |
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