Ion Chromatography, Analysis of Module B

The Research Triangle Institute (RTI) analyzes the nylon filters from module B of the IMPROVE sampler for ions using ion chromatography (IC).  The following SOP describes the procedures for analyzing the filters and QA/QC analyses conducted on the data.  The Standard Analysis for IMPROVE includes anions only.

Current Versions:

Ion2: Determination of Anions and/or Cations Extracted from Nylon® Filters by Ion Chromatography (IC) r11 (RTI, Updated March 2025)

Ion3: Filter Extraction via SimPRep Autodilution System r3 (RTI, Updated December 2025) 

Archived Versions:

Determination of Anions and/or Cations Extracted from Nylon® Filters by Ion Chromatography (IC) r7 (RTI, Updated February 2020)