ICP-OES Spectrometer SPECTRO Arcos MultiView

Spectro Arcos (AMETEK Materials Analysis Division) is an optical emission spectrometer (OES) with radial observation of inductively coupled plasma (ICP). The SPECTRO ARCOS features a Paschen-Runge spectrometer mount, employing the Optimized Rowland Circle Alignment (ORCA) technique with 32 linear CCD detectors. The optics is hermetically sealed and filled with argon. Thus, high optical transmission in the VUV is achieved, allowing the determination of non-metals as well as the use of prominent and interference free lines in this region. The wavelength range between 130 and 770 nm can be simultaneously analyzed, allowing complete spectrum capture within 2s. Hence, a new measurement is not required even if additional elements or lines are to be determined at a later date. All relevant ICP OES operating parameters are software controlled, allowing easy selection of the optimum operating conditions.

Simultaneous energy-dispersive X-ray fluorescence spectrometer XEPOS P (AMETEK Materials Analysis Division) enables identification of elements in the Na-U range and multi-element non-destructive semi-quantitative and quantitative analysis for various types of substances with unknown matrix (except gaseous). The excitation radiation is generated by an air-cooled low-power X-ray tube with a Pd / Co anode and adapted to the specified groups of elements. The characteristic fluorescent radiation is processed by a thermoelectrically cooled SDD detector, the measuring space is flushed with helium when determining light elements. The instrument is equipped with a carousel for 12 cuvettes with a diameter of 32 mm, but it is also possible to measure large samples.

The PE 2400 Series II CHNS/O Analyzer (Perkin Elmer, USA) serves for simultaneous determination of C, H, and N in organic compounds. In the CHN operating mode the instrument employs a classical combustion principle to convert the sample elements to simple gases (CO₂, H₂O and N₂). The PE 2400 analyzer performs automatically combustion and reduction, homogenization of product gases, separation and detection. A microbalance MX5 (Mettler Toledo) is used for precise weighing of samples. The accuracy of CHN determination is better than 0.30% abs.

ETV 4000c (Spectral Systems, Fürstenfeldbruck, Germany) is device for electrothermal vaporization of samples. Main part of the device is graphite furnace cooled by water and connected to ICP-OES by PTFE tube. The furnace can be heated up to 3000°C, the temperature is continuously checked by a built-in pyrometer. The furnace works in argon atmosphere, stream of argon carries vapors and dry aerosol from the furnace through a PTFE tube to the ICP-OES. A small amount of CCl₂F₂ (freon R12) is added into the argon stream to transform elements into their more volatile compounds. ETV 4000c is equipped with autosampler with 50 positions for graphite boats, which provides comfort when analyzing big series of samples. The gas flows are adjusted by electronically controlled valves. ETV 4000c is connected to ICP OES via computer, allowing simple synchronization of furnace operation and data collection.