TOC Analyser QuickTOCpurity

The QuickTOC_purity of LAR Process Analysers AG is the online TOC measurement system for the determination of total carbon (TC), total organic carbon (TOC), total inorganic carbon (TIC) and dissolved organic carbon (DOC) in pure water.

The catalyst-free ceramic oven is the centrepiece of the QuickTOC_purity. At 1,200°C, it reliably dissolves all carbon bonds and thus enables a complete analysis of samples. Despite the high temperatures used, absolute safety is guaranteed in all settings. For this end, the QuickTOC_purity can be delivered with a number of different housings, depending on the intended location. That way the analyser itself can be safely at high corrosive places as well as in Ex-Zones.

The sample is injected into the furnace via an injection loop. Moreover, this loop defines simultaneously the sample volume. The loop system ensures that the sample is 100% closed against ambient air. Even the smallest impurities are excluded. The sample can be analyzed correctly in the lowest ppb range.

Catalysts are only necessary for a low temperature catalytic “high temperature” oxidation (680 – 1,100°C) to support the oxidisation of the carbon bonds. However, the performance of the catalysts reduces over time. This affects the measurement results, necessitates continual new calibration and eventually requires that the catalysts be replaced. Because of their high temperatures our analysers do not need any catalysts. We want to save you the trouble: With the QuickTOC_purity.

Inorganic carbon (carbonate) reacts in the boiler to produce carbonic acid, which attacks the metal wall of the boiler, pipes and heat exchangers. The monitoring of total carbon includes this part and minimizes the risk. In addition, the measurement cycle of the TC determination is only about 1 minute, so a fast and reliable monitoring of ultrapure water is ensured.

LAR offers with the patented calibration and validation technique QuickCalibration the opportunity to check automaticly and remotely at any time the analyser. In contrast to the use of liquid standards, that must be produced or purchased expensively, our unique method uses a defined gas. Such a test gas is stable for a long time and is ideal for automatic calibrations without personnel on site.

Contamination of test equipment in the loop system is technically impossible.

The QuickTOC_purity works in batch mode and determines the TRUE TOC in under 3 minutes. The TRUE TC you even get in 1 minute.

The TC is particularly advantageous if a high proportion of the TIC is present. This speed guarantees that very short peaks can be determined very well during a daily cycle. The analyser’s availability is over 98%.

As even in high salt applications its weekly service is about 30 minutes.