Rapid Analysis of the Size Distribution of Metal-Containing Aerosol

Details

• Alternative Title:
  Aerosol Sci Technol
• Personal Author:
  Park, Jae Hong ; Mudunkotuwa, Imali A. ; Crawford, Kathryn J. ; Anthony, T. Renée ; Grassian, Vicki H. ; Peters, Thomas M.
• Description:
  Conventional methods to measure the metallic content of particles by size are time consuming and expensive, requiring collection of particles with a cascade impactor and subsequent metals analysis by inductively coupled plasma mass spectrometry (ICP-MS). In this work, we describe a rapid way to measure the size distribution of metal-containing particles from 10 nm to 20 μm, using a nano micro-orifice uniform-deposit impactor (nano-MOUDI) to size-selective and collect particles that are then analyzed with a field portable X-ray fluorescence (FP-XRF) to determine metal composition and concentration. The nano-MOUDI was used to sample a stainless-steel aerosol produced by a spark discharge system. The particle-laden substrates were then analyzed directly with FP-XRF and then with ICP-MS. Results from FP-XRF were linearly correlated with results from ICP-MS (R| = 0.91 for Fe and R| = 0.84 for Cr). Although the FP-XRF was unable to detect Fe particles at mass per substrate loadings less than 2.5 μg effectively, it produced results similar to those using the ICP-MS at a mass per substrate loading greater than 2.5 μg.
• Keywords:
  Inductively Coupled Plasma Mass Spectrometry Nano-MOUDI Stainless-steel Aerosol X-ray Fluorescence
• Source:
  Aerosol Sci Technol. 51(1):108-115
• Pubmed ID:
  28871214
• Pubmed Central ID:
  PMC5580826
• Document Type:
  Journal Article
• Funding:
  P30 ES005605/ES/NIEHS NIH HHSUnited States/ ; R01 OH010238/OH/NIOSH CDC HHSUnited States/ ; T42 OH008491/OH/NIOSH CDC HHSUnited States/
• Volume:
  51
• Issue:
  1
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:9e69caf9e20c08102e51cec35627befa2a07d0a3e2d5e10ac82c55acd745c1aeda75578318dc8cf0cb9e0c0317a8dcabd7016e41261c12fdc583c80c417bfa18
• Download URL:
  https://stacks.cdc.gov/view/cdc/47996/cdc_47996_DS1.pdf
• File Type:
  [PDF - 547.47 KB ]