For the safe, precise and reliable analysis of carbon (C), sulfur (S) and hydrogen (H) in predominantly organic matrices such as soils, waste, wood, oil, coal and coke, ELTRA offers the elemental analyzers ELEMENTRAC CHS-r with IR detection.
The CHS-r with up to 3 infrared cells is designed for carbon, sulfur and hydrogen 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 CHS-r combustion analyzer meets or exceeds the requirements of all common ASTM, DIN, EN or ISO standards for elemental analysis.
Analizator węgla / siarki ELEMENTRAC CHS-r
- Fast, simultaneous measurement of carbon, sulfur and hydrogen
- High sample weight possible
- Optimized (low blank) sample port
- IR path made of solid gold for extended lifetime
- Wide measuring range from 20 ppm to 100%
Analizator węgla / siarki ELEMENTRAC CHS-r Praca i proces analizy
Krok 1: Wprowadzanie próbki do programu ELEMENTS
Krok 2: Naważanie i dodawanie akceleratorów
Volumes of 50 mg to 500 mg are typical for analysis of carbon, hydrogen and sulfur. The sample is directly applied to a carrier (ceramic or Inconel boat) and analyzed without addition of accelerators.
Krok 3: Analiza
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.
Krok 4: Wyniki i eksport danych
60 to 240 seconds after the analysis has started, the measured carbon, hydrogen and sulfur concentrations are available for export as a report or via LIMS. Depending on the selected configuration, carbon, sulfur and hydrogen values are available for the individual sample.
Analizator węgla / siarki ELEMENTRAC CHS-r Solutions & Options in Detail
The ELEMENTRAC CHS-r analyzer comes with various solutions for reliable, and precise carbon, hydrogen and sulfur analysis.
Included: Two Anhydrone Columns
For reliable analysis of carbon and sulfur, the combustion gases must be freed from water vapor prior to IR detection. The CHS-r elemental analyzer has two drying columns filled with magnesium perchlorate to reliably prevent absorption effects in large sample volumes. In the case of TOC analyses, a chemical tube can also be used as a halogen trap to reliably absorb acid residues and halogens.
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.
Option: Second Furnace (ELTRA Dual Furnace Concept)
The CHS-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.
Option: Monitor Holder
To make the most of laboratory space, the ELEMENTRAC CHS-r analyzer offers various operating options:
- External monitor and keyboard
- Monitor holder, wireless keyboard
- Operation via touchscreen
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 CHS-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.
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Analizator węgla / siarkiELEMENTRAC CHS-r Oprogramowanie ELEMENTS
Wszechstronne, oparte na systemie Windows oprogramowanie ELEMENTS jest istotną częścią wszystkich analizatorów elementarnych generacji ELEMENTRAC.
Centralne okno (analiza i wyniki) jest punktem wyjściowym, z którego wszystkie funkcje wymagane w codziennej pracy są łatwo dostępne. Z tego miejsca możliwe jest grupowanie i eksport analizowanych próbek lub rejestracja i analiza nowych próbek. Użytkownik może wywołać różne podrzędne funkcje, takie jak ustawienia aplikacji, kalibracja, diagnostyka lub status.
Analizator węgla / siarkiELEMENTRAC CHS-r Typowe materiały próbek
biomasa, materiały budowlane, coal, koks,fuels, olej, rudy, materiały roślinne, plastiki, guma, gleba, sadza, tytoń, odpady...
Analizator węgla / siarkiELEMENTRAC CHS-r Zasada działania
In the elemental analyzer CHS-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 first pass through a dust filter and then into the heated H2O infrared cell. 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 three infrared cells with different sensitivities.
Analizator węgla / siarki ELEMENTRAC CHS-r Dane techniczne
| Measured elements | carbon, hydrogen, sulfur |
|---|---|
| Samples | organic |
| Furnace alignment | horizontal (resistance furnace) |
| Sample carrier | ceramic boats |
| Field of application | agriculture, biology, chemistry / plastics, coal / power plant, construction materials, environment / recycling, medicine / pharmaceuticals |
| Furnace | resistance furnace (ceramic tube), adjustable up to 1550 °C (steps of 1 °C) |
| Detection method | solid state infrared absorption |
| Number of IR cells | 1 - 3 |
| Material of IR path | gold |
| Typical analysis time | 60 - 180 s |
| Chemicals required | magnesium perchlorate, sodium hydroxide |
| Gas required | oxygen 99.5 % pure (2 - 4 bar / 30 - 60 psi) |
| Power requirements | 230 V, 50/60 Hz//max. heat up current 2000 W |
| Dimensions (W x H x D) | 58 x 52 x 75 cm |
| Weight | ~ 77 kg |
| Required equipment | PC, monitor, balance (resolution 0.0001g) |
| Optional accessories | TIC module |