Merck
  • Home
  • Search Results
  • Molecular markers in ambient aerosol in the Mahanadi Riverside Basin of eastern central India during winter.

Molecular markers in ambient aerosol in the Mahanadi Riverside Basin of eastern central India during winter.

Environmental science and pollution research international (2014-08-19)
Jayant Nirmalkar, Manas K Deb, Dhananjay K Deshmukh, Ying I Tsai, Santosh K Verma
ABSTRACT

Organic molecular markers are important atmospheric constituents. Their formation and sources are important aspects of the study of urban and rural air quality. We collected PM10 aerosol samples from the Mahanadi Riverside Basin (MRB), a rural part of eastern central India, during the winter of 2011. PM10 aerosols were characterized for molecular markers using ion chromatography. The concentration of PM10 ranged from 208.8 to 588.3 μg m(-3) with a mean concentration of 388.9 μg m(-3). Total concentration of anhydrosugars, sugar alcohols, primary sugars, and oxalate were found to be 3.25, 5.60, 10.52, and 0.37 μg m(-3), respectively, during the study period. Glucose was the most abundant species followed by levoglucosan and mannitol. Significant positive correlation between the molecular markers, anhydrosugars, sugar alcohols, primary sugars, and oxalic acid confirmed that biomass burning, biogenic activity, and re-suspension of soil particles were the main sources of aerosol in the eastern central India study area.

MATERIALS
Product Number
Brand
Product Description

Xylitol, European Pharmacopoeia (EP) Reference Standard
myo-Inositol, European Pharmacopoeia (EP) Reference Standard
Sigma-Aldrich
Xylitol
Galactose, European Pharmacopoeia (EP) Reference Standard
Supelco
Glycerin, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
D-(+)-Mannose, powder, BioReagent, suitable for cell culture
Sigma-Aldrich
myo-Inositol, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture
Sigma-Aldrich
Glycerin, meets USP testing specifications
Supelco
Xylitol, analytical standard
Sigma-Aldrich
Xylitol, ≥99%
Millipore
myo-Inositol, suitable for microbiology, ≥99.0%
Sigma-Aldrich
D-(+)-Galactose, meets analytical specification of Ph. Eur., BP
Sigma-Aldrich
Glycerol solution, 83.5-89.5% (T)
Sigma-Aldrich
D-(+)-Mannose, BioUltra, ≥99.5% (sum of enantiomers, HPLC)
Millipore
D-(+)-Mannose, suitable for microbiology, ≥99%
Millipore
D-(+)-Galactose, suitable for microbiology, ≥99.0%
Millipore
D-(+)-Mannose, ≥99.0% (sum of enantiomers, HPLC), suitable for microbiology
Sigma-Aldrich
myo-Inositol, ≥99%
Sigma-Aldrich
D-(+)-Galactose, ≥98%
Sigma-Aldrich
D-(+)-Galactose, powder, anhydrous, BioReagent, suitable for cell culture, suitable for insect cell culture
Sigma-Aldrich
D-(+)-Galactose, ≥99%
Sigma-Aldrich
Glycerol solution, puriss. p.a., 86-89% (T)
Supelco
Trehalose, Pharmaceutical Secondary Standard; Certified Reference Material
SAFC
myo-Inositol
Sigma-Aldrich
Glycerol solution, puriss., meets analytical specification of Ph. Eur., BP, 84-88%
Supelco
Galactose, Pharmaceutical Secondary Standard; Certified Reference Material
Supelco
Xylitol, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
D-(+)-Mannose, wood, ≥99%
Sigma-Aldrich
D-(+)-Mannose, synthetic, ≥99%
SAFC
Galactose, plant-derived