Apparatus for rapid measurement of aerosol bulk chemical...

Chemistry: analytical and immunological testing – Measurement includes change in volume or pressure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C436S146000, C436S174000, C436S179000, C436S181000, C422S105000, C422S083000, C422S073000, C422S081000, C422S068100, C073S028010, C073S028040, C073S028050, C073S061630

Reexamination Certificate

active

07029921

ABSTRACT:
An apparatus for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution is provided. The apparatus includes an enhanced particle size magnifier for producing activated aerosol particles and an enhanced collection device which collects the activated aerosol particles into a liquid stream for quantitative analysis by analytical means. Methods for on-line measurement of chemical composition of aerosol particles are also provided, the method including exposing aerosol carrying sample air to hot saturated steam thereby forming activated aerosol particles; collecting the activated aerosol particles by a collection device for delivery as a jet stream onto an impaction surface; and flushing off the activated aerosol particles from the impaction surface into a liquid stream for delivery of the collected liquid stream to an analytical instrument for quantitative measurement.

REFERENCES:
patent: 4868398 (1989-09-01), Mulcey et al.
patent: 5855652 (1999-01-01), Talley
patent: 6506345 (2003-01-01), Lee et al.
Boring, C.B, R. Al-Horr, Z. Genfa, andP.K. Dasgupta, “Field measurement and soluble anions in atmospheric particulate matter using a parallel plate wet denuder and an alternating filter-based automated analysis system,”Anal. Chem, 74: 1258 (2002).
Buhr, S.M, M.P. Buhr, F.C. Fehsenfeld, J.S. Holloway, U. Karst, R.B. Norton, D.D. Parrish and R.E. Slever, “Development of a semi-continous method for the measurement of nitric acid vapor and particulate nitrate and sulfate,”Atmos. Environ. 29: 2609-2624 (1995).
Carson, P.G., K.R. Neubauer, M.V. Johnston, and A.S. Wexler, “On-line chemical analysis of aerosols by rapid single-particle mass spectrometry,”J. Aerosol Sci. 26: 535-545, (1995).
Chow, J.C., “Measurement method to determine compliance with ambient air quality standards for suspended particles,”J. Air West Mang. 45: 320-382, (1995).
Hinz, K.P., R. Kaufmann, and B. Spengler,“Laser-Induced mass analysis of single particles in the airborne state,”Analyt. Chem. 66: 2017-2076, (1994).
Ito, I., C.C. Chasteen, H. Chung, S.K. Prouthoor , Z. Genfa,, and P.K. Dasgupta, “A continuous monitoring system for strong acidity in aerosols,”Anal. Chem, 70: 2839-2847, (1998).
Jayne, J.T., D.C. Leard, X. Zhang, P. Davidovits, K.A. Smith, C.E. Kolb, and D.R. Worsnop, “Aerosol mass spectrometer for size and composition analysis of submicron particles,”J. Aerosol Sci, 33:49-70, (2002).
Karlsson, A., K. Irgum, and H. Hansson, “Single-state flowing liquid film impactor for continuous on-line particle analysis,”J. Aerosol Sci. 28: 1539-1551, (1997).
Khlyatov, A., G.P. Wyers, and J. Slamina, “The steam-jet aerosol collector,”Atmos. Envir. 29: 2229-2234 (1995).
Knutson, E.O., and K.T. Whitby, “Aerosol classification by electrical mobility Apparatus, theory, and applications,”J. Aerosol Sci. 6: 443-451, (1975).
Kogan, Y.I., and Z.A. Burnasheva, “Growth and measurement of condensation nuclei in a continuous stream,” RussianJ. Phys. Chem. 34: 1240-1243, (1960).
Kousaka, Y., T. Nikla, K. Okuyama, and H. Tanaka, “Development of a mixing type condensation nucleus counter,”J. Serosol Sci. 13: 231-340, (1982).
Liu, S. and P.K. Dasgupta, “Automated system for chemical analysis of airborne particles based on corona-free electrostatic collection,”Anal. Cehm, 68: 3638-3644, (1996).
Marljinissen, J.C.M., B. Scarlett, and P.J.T. Verheljen, “Proposed on-line aerosol analysis combining size determination, laser-induced fragmentation and time-of-flight mass spectroscopy,”J. Aerosol Sci, 19: 1307, (1988).
Marple, V.A., and K. Willeke, “Impactor design,”Atmos. Envir. 10: 891-898, (1976).
McKeown, P.J., M.V. Johnston, and D.D. Murphy, “On-line single-particle aerosol analysis by laser description mass spectrometry,”Analys. Chem. 63: 2069, (1991).
Okuyame, K., Y. Kousaka and T. Motouchi, “Condensational growth of ultrafine aerosol particles in a new particle size magnifier,”Aerosol Sci. and Technol. 3: 353-366 (1984).
Oms, T.T., P.A.C, Jongejan, A.C. Veltkamp, G.P. Wyers, and J. Slamina, “Continuous monitoring of atmospheric HC1, HNO2, and SO2by wet-annular denuder sampling with on-line chromatographic analysis,”Intern. J. Anal. Chem. 2: 207-218, (1997).
Poruthoor, S.K., and P.K. Dasgupts, “Automated particle collection and analysis. Near-real time measurement of aerosol cerium (III),”Analytica Chemica Acta361: 151-159, (1998).
Prather, K.A., T. Nordmeyer, and K. Salt, “Real-time characterization of individual aerosol particles using time-of-flight mass spectrometry,”Analyt. Chem. 66: 1403, (1994).
Rader, D.J., and V,A. Marple, “Effects of ultre-stokesian drag and particle interception on Impaction characteristics.”Aerosol Sci. Technol, 4: 141-156, (1985).
Reents, W.D.J., A.M. Mujece, A.J. Muller, D.J. Siconolfi, and A.G. Swanson, “Real-time elemental analysis of individual submicron particles by laser ablation time-of flight mass spectrometry,”J. Aerosol Sci. 23: 263, (1995).
Seebaugh, W.R. and B.G. LaFleur, “Low turbulence inlet for aerosol sampling from aircraft,”AAAR, Orlando, Oct. 14-18.
Simon, P.K., and P.K. Dasgupta, “Continuous automated measurement of the soluble fraction of atmospheric particulate matter,”Anal Chem. 67: 71-78, (1995).
Slanina, J,, H.M.T. Brink, R.P. Otjes, A. Even, P. Jonejan, A. Khiystov, A, Waijers-Ijpelaan, M. Hu and Y. Lu, “The continuous analysis of nitrate and ammonium in aerosols by the steam jet aerosol collector (SJAC): Extension and validation of the methodology,”Envir, 35: 2319-2330, (2001).
Slanina, J., H.M.T. Brink, R.P. Otjes, A. Evan, P. Jonejan. A. Khlystov, A. Waijers-Ijpelaan, M. Hu and Y. Lu, “The continuous analysis of nitrate and ammonium in aerosols by the steam jet aerosol collector (SJAC): Extension and validation of the methodology,”Envir, 35: 2319-2330, (2001).
Stolzenburg, M.R. and V. Hering, “A method for the automated measurement of fine particle nitrate in the atmosphere,”Environ, Sci. Technol, 34: 904-914 (2000).
Turpin, B.J., R.A. Cary, and J.J. Huntzicker, “An in situ, time-resolved analyzer for aerosol organic and elemental carbon,”J. Aerosol Sci. 12: 161-171, (1990).
Toon, J., “Measuring Atmospheric Pollutants: Instrument Automates Sampling of Aerosols and Provides More Detailed Data;” complete set attached.gtresearchnews.gatech.edu Newsrelease/PILS.htm, Aug. 28, 2002.
Wang, S.C., and R.C. Flagan, “Scanning electrical mobility spectrometer,”Aerosol Sci. Technol. 13: 230-240, (1990).
Weber, R.J., D. Orsini, Y. Daun, Y.N. Lee, P. Klotz, and F. Brechtel, “A particle- into-liquid collector for rapid measurements of aerosol chemical composition,”Aerosol Sci. Tech, 35: 718-727.
Zellweger, C., M. Ammann, P. Hofer, and U. Baltensperger, “NOy specification with combined wet effluent diffusion denuder-aerosol collector coupled to ion chromatography,”Atm. Envir, 33: 1131-1140, (1999).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for rapid measurement of aerosol bulk chemical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for rapid measurement of aerosol bulk chemical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for rapid measurement of aerosol bulk chemical... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3597064

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.