GE Sievers Innovox - Chapter 1: Introduction

GE Analytical Instruments ©2016 49 of 270 DLM 68100-09 EN Rev. A
Chapter 1. Introduction
The Sievers* InnovOx On-Line TOC Analyzer from GE Analytical Instruments is a high-sensitivity Analyzer used to
measure the concentration of total organic carbon (TOC), non-purgeable organic carbon (NPOC), total carbon
(TC), and inorganic carbon (IC) in water samples. The Analyzer uses supercritical water oxidation (SCWO) to
measure a wide range of carbon concentrations in complex sample matrices, including those containing high
concentrations of total dissolved solids (TDS) and particulates.
In the Analyzer’s innovative SCWO approach, organic compounds are oxidized to CO
2
at high temperatures in a
sealed reactor, using an oxidizing agent. The concentration of TOC in the sample can be calculated from the
difference between the TC and IC concentrations (i.e., TOC = TC – IC). The sample also may be sparged with a gas
to remove IC (as CO
2
); when that is done, the measurement is referred to as NPOC. Non-purgeable Organic
Carbon measurements are appropriate when the sample is known to contain little Purgeable Organic Carbon
(POC).
The Analyzer can be used to monitor water samples ranging from high-purity water containing 0.250 parts per
million (ppm) (mg/L) TOC to water samples containing up to 50,000 ppm TOC. The Analyzer is easy to operate,
with extremely low maintenance.
*Trademark of General Electric Company. May be registered in one or more countries.
Warning
Do not attempt to analyze samples containing hydrofluoric acid or fluoride ions in
the InnovOx Analyzer. Serious damage can occur to the instrument and toxic
gases can be emitted.