PMID- 11452589
OWN - NLM
STAT- MEDLINE
DCOM- 20011204
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 35
IP  - 13
DP  - 2001 Jul 1
TI  - 1H NMR application for characterizing water-soluble organic compounds in urban 
      atmospheric particles.
PG  - 2656-64
AB  - Water-soluble organic compounds (WSOC) in urban atmospheric particles separated 
      by particle size were analyzed by 1H NMR. This is the first utilization of 1H NMR 
      for characterizing WSOC in atmospheric particles. The WSOC dissolved in D2O were 
      analyzed without a separation procedure. Twelve low molecular weight WSOC could 
      be identified and their atmospheric concentrations determined. One of these, 
      monomethyl hydrogen sulfate (MHS), was first detected in an urban area where no 
      oil or coal power plant existed. Methanesulfonic acid (MSA) and 
      hydroxymethanesulfonic acid (HMSA) were detected as major organosulfur compounds. 
      Relatively high concentrations of these low molecular weight WSOC were observed 
      in the particle diameter range of 0.43-1.1 microns. Many complex signals at 3-4 
      ppm in the NMR spectrum were seen only for the coarse particle samples (1.1 
      microns < particle diameter). Mannitol was believed to exist in the coarse 
      particles as a major polyol corresponding to these signals. On the other hand, a 
      large broad signal, observed at 2.5-3 ppm, was mostly present in the fine 
      particles. Finally, it was believed that a major part of the WSOC in urban 
      atmospheric fine particles is attributed to ketocarboxylic acids, 
      ketodicarboxylic acids, and dicarboxylic acids.
FAU - Suzuki, Y
AU  - Suzuki Y
AD  - Kobe Institute of Health, 4-6 Minatojimo-nakamachi, Chuo-ku, Kobe-shi, Hyogo 
      650m, Japan. kih-info-1@mse.biglobe.ne.jp
FAU - Kawakami, M
AU  - Kawakami M
FAU - Akasaka, K
AU  - Akasaka K
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Air Pollutants)
RN  - 0 (Organic Chemicals)
RN  - 059QF0KO0R (Water)
SB  - IM
EIN - Environ Sci Technol 2001 Aug 1;35(15):3272
MH  - Air Pollutants/*analysis
MH  - Cities
MH  - Environmental Monitoring/*methods
MH  - Magnetic Resonance Spectroscopy/methods
MH  - Molecular Weight
MH  - Organic Chemicals/*analysis
MH  - Particle Size
MH  - Sensitivity and Specificity
MH  - Solubility
MH  - Water
EDAT- 2001/07/17 10:00
MHDA- 2002/01/05 10:01
CRDT- 2001/07/17 10:00
PHST- 2001/07/17 10:00 [pubmed]
PHST- 2002/01/05 10:01 [medline]
PHST- 2001/07/17 10:00 [entrez]
AID - 10.1021/es001861a [doi]
PST - ppublish
SO  - Environ Sci Technol. 2001 Jul 1;35(13):2656-64. doi: 10.1021/es001861a.