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Área de trabajo: Análisis de materiales.

Título: Cromatografía Iónica de Combustión con un Sistema HPIC Integrion.

Título original: Combustion ion chromatography with a Dionex Integrion HPIC System.

Autor: Daniel Khor,1 Jeff Rohrer,1 Adelon Austin,2 Mark Manahan2 1Thermo Fisher Scientifi c, Sunnyvale, CA, USA; 2COSA Xentaur, TX, USA.

Goal

To provide instructions to set up a combustion ion chromatography (IC) system using a Thermo Scientific™ Dionex™ Integrion™ HPIC™ system, a Mitsubishi AQF-2100H combustion system, and the Thermo Scientific™ Chromeleon™ 7 Chromatography Data System (CDS) software

 

Introduction

A combustion IC system can be used for automated qualitative and quantitative analysis of halogens and sulfur in samples comprised of diffi cult matrices – intractable solids, semisolids, liquids, and even gases. These samples are very diffi cult to analyze using conventional ion chromatography (IC): sample preparation is required to extract analytes or remove interfering matrices, and these sample preparation techniques are costly and labor intensive. Automated combustion IC reduces the time and labor required for this analysis. The samples are pyrolyzed in an oxidizing atmosphere, the resultant vapors are absorbed in an aqueous solution, and then introduced directly into the IC system for analysis. This automated method is highly sensitive, easy to use, saves time, and produces fewer environmental contaminants than other sample preparation procedures, such as acid digestions or back extractions from organic solutions.

 

Instrument set up and installation

The Dionex Integrion HPIC System is configured with a CD Conductivity Detector, eluent generation, and temperature control of the column oven and detector compartment. This system has consumables device monitoring, optional manual control via the Dionex Integrion HPIC system tablet, and can operate at pressures up to 5000 psi with eluent generation. To set up this application: 1. Plumb the Dionex Integrion HPIC system based on the intended application (refer to schematics) 2. Connect the USB cable from the Dionex Integrion HPIC system to the computer 3. Connect the RS232 cables from the Mitsubishi GA-210, ES-210 and autosampler to the Mitsubishi HF-210 module 4. Connect the RS232 cable from the Mitsubishi HF-210 module to the computer 5. Connect the power cables and turn on all the modules

 

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