Erratum to: Integrated Microfluidic Helium Discharge Photoionization Detectors

Details

• Personal Author:
  Fan, Xudong ; Ghosh, Abhishek ; Li, Maxwell W. H. ; Sharma, Ruchi ; Zhu, Hongbo
• Description:
  Helium discharge photoionization detectors (HDPIDs) have been of increasing importance for detection of highly volatile compounds in gas chromatography (GC) and portable gas monitoring systems. The high ionization energy of these detectors (13.5-17.5 eV) allows for detection of virtually all compounds of interest, offering a distinct advantage compared to conventional PIDs, which can only detect compounds with ionization potentials below 10.6 (or 11.7, if using argon) eV. However, many current designs are bulky, power intensive, or helium intensive, restricting their usage to benchtop laboratory use. We recently developed a miniaturized HDPID that has low power and helium consumption, and small footprint. While offering suitable performance for portable GC applications, this design relies on hand assembly of silicon and Pyrex glass pieces, reducing fabrication yield, robustness, and repeatability. The current work improves on this prior device using an integrated, microfabricated µHDPID chip along with in-house designed plasma excitation and readout circuits. The µHDPID is characterized using permanent gases, light hydrocarbons, and formaldehyde, achieving low detection limits better than 10 pg, high linearity, rapid response time, short warm-up time, and high repeatability among devices. This integrated on-chip gas sensor offers advantages in ease of fabrication, yield and robustness, and repeatability. Therefore, it can be broadly used in portable GC for various applications. Erratum https://doi.org/10.1016/j.snb.2021.130570: Supplementary Data: The journal incorrectly used a Supplementary Data from different authors. Corrections: The correct Supplementary Data is available here. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety Volatile Organic Compounds
• Keywords:
  Author Keywords: Helium Dielectric Barrier Discharge Plasma; Photoionization Detector; Portable Gas Chromatography; Universal Gas Detection; Volatile Organic Compounds Gas Chromatography; Detectors; Sensors; Analytical Instruments; Mobile Equipment; VOCs; Volatile Organic Compounds;
• ISSN:
  0925-4005
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Michigan ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1 pdf page
• Volume:
  332
• NIOSHTIC Number:
  nn:20068158
• Citation:
  Sens Actuators B Chem 2021 Apr; 332:129504
• Contact Point Address:
  Xudong Fan, Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
• Email:
  xsfan@umich.edu
• Federal Fiscal Year:
  2021
• Performing Organization:
  University of Michigan at Ann Arbor
• Peer Reviewed:
  True
• Start Date:
  20180901
• Source Full Name:
  Sensors and Actuators B: Chemical
• End Date:
  20220831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c10aabcc518929a614fc090330306da08d54298045464270c4c679dd727955a78008fd97c3a09320f651f5753879991eb4f32981bdd1fec1f2f64397c2165c78
• Download URL:
  https://stacks.cdc.gov/view/cdc/231583/cdc_231583_DS1.pdf
• File Type:
  [PDF - 224.49 KB ]