AI Article Synopsis

  • A new ion chromatography (IC) method was developed to measure twelve inorganic and fifteen organic ions in atmospheric aerosols simultaneously.
  • The method showed high accuracy with linear concentrations ranging from 0.005 to 500 microg/m3 and excellent precision (relative standard deviation from 0.43% to 2.00%).
  • It was successfully used to analyze PM2.5 samples from Beijing, detecting ions at very low limits (2.7 ng/m3 to 88 ng/m3).

Article Abstract

A simple, sensitive and convenient ion chromatography(IC) method was established for the simultaneous determination of twelve water-soluble inorganic anions(F- , Cl- , NO2(-), NO3(-), SO3(2-), SO4(2-) , PO4(3-)), and fifteen water-soluble organic ions(formate, acetate, MSA, oxalate, malonate, succinate, phthalates, etc.) in atmospheric aerosols. The linear concentrations ranged from 0.005 microg/m3 to 500 microg/m3 ( r = 0.999-0.9999). The relative standard deviation (RSD) were 0.43%-2.00% and the detection limits were from 2.7 ng/m3 to 88 ng/m3. The proposed method was successfully applied to the simultaneous determination of those inorganic ions and organic ions in PM2.5 of Beijing.

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