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Carbon / Sulfur Analyzer ELEMENTRAC CS‑r

Carbon / Sulfur Analyzer ELEMENTRAC CS-r
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For the safe, precise and reliable elemental analysis of carbon (C) and sulfur (S) in predominantly organic matrices such as soils, waste, wood, oil, coal and coke, ELTRA offers the combustion analyzer ELEMENTRAC CS-r with IR detection.

The CS-r with up to 4 infrared cells is designed for carbon and sulfur measurement over a very wide concentration range. It uses a horizontal resistance furnace with ceramic tube, which operates in a range from 600 °C to 1550 °C.

The CS-r elemental analyzer meets or exceeds the requirements of all common ASTM, DIN, EN or ISO standards for elemental analysis. 

Carbon / Sulfur Analyzer ELEMENTRAC CS-r
ELEMENTRAC CS-r: Step 1: Logging the sample into the ELEMENTS software

Step 1: Logging the sample into the ELEMENTS software

The sample ID is logged into the software and the weight is automatically transferred (see step 2).

ELEMENTRAC CS-r: Step 2: Weighing and adding of accelerators

Step 2: Weighing and adding of accelerators

Volumes of 50 mg to 500 mg are typical for elemental analysis of carbon and sulfur. The sample is directly applied to a carrier (ceramic or Inconel boat) and analyzed without addition of accelerators. 

ELEMENTRAC CS-r: Step 3: Analysis

Step 3: Analysis

The sample is placed in front of the furnace opening and the measurement is started in the software. Subsequently, the shutter opens, and the material can be introduced into the hot furnace. At the same time, the ELEMENTS software continuously records measured values during combustion. Closing the furnace during the measurement is optional and can improve reproducibility.

ELEMENTRAC CS-r: Step 4: Data output and export

Step 4: Data output and export

60 to 240 seconds after the analysis has started, the measured carbon and sulfur concentrations are available for export as a report or via LIMS. Depending on the selected configuration, carbon and sulfur values are available for the individual sample.

Carbon / Sulfur Analyzer ELEMENTRAC CS-r Solutions & Options in Detail

The ELEMENTRAC CS-r analyzer comes with various solutions for reliable and precise carbon and sulfur analysis.

Included: Two Anhydrone Columns

For reliable carbon and sulfur analysis, the combustion gases must be freed from water vapor prior to IR detection. The CS-r elemental analyzer is equipped with two drying columns filled with magnesium perchlorate to reliably prevent absorption effects in large sample volumes. In the case of TOC analysis, a chemical tube can also be used as a halogen trap to reliably absorb acid residues and halogens.

ELEMENTRAC CS-r: Included: Two Anhydrone Columns

Included: Low blank sample port

The ELEMENTRAC CS-r and CHS-r analyzer series ensures safe and precise elemental analysis even of samples with low carbon content in the resistance furnace. Due to the optimized geometry of the sample port with reduced diameter, as well as an oxygen purge at the sample inlet, the CO2 blank value of the atmosphere during sample introduction is drastically reduced, thus enabling reliable carbon analysis in the low measuring range.

ELEMENTRAC CS-r: Included: Low blank sample port

Option: Second Furnace (ELTRA Dual Furnace Concept)

The CS-r elemental analyzer can be connected in any configuration to an additional furnace without detectors. This principle, known from the ELEMENTRAC CS-d, allows fast fractionated analysis by applying different temperatures and provides safety for high sample throughput.

ELEMENTRAC CS-r: Option: Second Furnace (ELTRA Dual Furnace Concept)

Option: Monitor Holder

To make the most of available laboratory space, the ELEMENTRAC CS-r analyzer offers various operating options:
  • External monitor and keyboard
  • Monitor holder, wireless keyboard
  • Operation via touchscreen

ELEMENTRAC CS-r: Option: Monitor Holder

Option: TIC Module

Depending on the sample, carbon can also be present in the two different fractions TOC (Total Organic Carbon) or TIC (Total Inorganic Carbon). The CS-r elemental analyzer can be combined with ELTRA's TIC module to determine the TIC content via acidification. This combination enables reliable, direct TIC analysis in soils, building materials and other products in compliance with DIN EN 15936.

ELEMENTRAC CS-r: Option: TIC Module

The comprehensive Windows-based ELEMENTS software is an essential part of all ELEMENTRAC generation elemental analyzers.

A central window (analysis and results) is the starting point from which all functionalities required for the daily routine are easily accessible. From here it is possible to group and export analyzed samples, or register and analyze new ones. The user may call up various subordinate functionalities like application settings, calibration, diagnosis, or status.

 

Carbon / Sulfur Analyzer: ELEMENTS Software

Carbon / Sulfur Analyzer ELEMENTRAC CS-r Typical Sample Materials

biomass, building materials, coal/ coke, fuels, oil, ores, plant materials, plastics, rubber, soil, soot, tobacco, waste, ...

Typical Sample Materials: coal
Typical Sample Materials: soil
Typical Sample Materials: plastic granulates

Carbon / Sulfur Analyzer ELEMENTRAC CS-r Functional Principle

In the elemental analyzer CS-r the sample is burnt in an oxygen atmosphere at temperatures up to 1,550 °C. The furnace temperature can be freely selected in steps of 1 °C. The combustion gasses (CO2, H2O, SO2) coming from the furnace and pass through a dust filter. After the water vapor is chemically absorbed, the dried CO2 and SO2 gas is detected in the additional infrared cells. Depending on the configuration, it is possible to combine up to four (for C, S analyzers) infrared cells with different sensitivities.

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