Ion Chromatographic Determination of Perchlorate Ion: Analysis of Fertilizers andRelated Materials

摘要

In this method to determine perchlorate, a solid fertilizer sample is dissolvedor leached to solubilize the perchlorate as the aqueous anion. If needed, the liquid is filtered or centrifuged. The resulting solution is subjected to ion chromatography using an adaptation of EPA Method 314.0. Preliminary screening is required to ensure the sample is amenable to ion chromatography and within the calibration range. Experimental procedure and data analysis are described in detail. Quality control and reporting requirements have been modified for the fertilizer matrices. Equipment and detailed procedures must be documented as part of the supporting information.