1 Company Profile.
Anton Paar introduced the world's first fully automated wet digestion system in 1973 and has been producing microwave digestion machines for more than 30 years since 1989. The instrument is in the first place in the world in terms of safety, the number of digestion treatments, the digestion effect, and the expansion function of the instrument.
Anton Paar's main instruments for sample preparation include the Multiw**E GO, MULTIW**E 5000, and MULTIW**E 7000, as well as the HPA-S high-temperature and high-pressure sealed ashing and digestion unit, which complies with the ASTM C1234 international standard method for pretreatment. The ideal partner for your most difficult samples. So many instrument models can meet not only the most common digestion functions, but also a variety of special applications, microwave extraction (organic contaminant analysis), microwave proteolysis (amino acid analysis), microwave oxygen combustion (halogen, sulfur, phosphorus ion analysis), microwave ultraviolet digestion (aqueous digestion method).
The instrument is highly scalable, and the modular design of the instrument makes it easy to upgrade special applications in the later stage, and only need to change the corresponding rotor. It provides a large space for future research and expansion, and is suitable for use by schools and research departments. In particular, microwave oxygen combustion (halogen, sulfur, and phosphorus ion analysis) and microwave ultraviolet digestion (aqueous digestion method) are unique features of Anton Paar.
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2 Instrument performance.
Safety performance considerations: Anton Paar's MULTIW**E 5000 adopts the strictest safety standards in terms of safety design, and is the only product that has passed the double safety certification of North American ETL and EU GS microwave experimental equipment, and is the only explosion-proof microwave experimental instrument that many international petrochemical companies are allowed to use in the production area.
Using patented wireless temperature and pressure sensor test technology, it can monitor and display the internal temperature of the digestion tank, the internal pressure, the pressure rate of the digestion tank, the external temperature of the digestion tank, and the pressure control system of the whole tank 5 safety indicators, which is the only manufacturer in the world that can control so many safety control indicators;
Anton Paar's microwave digestion is the largest sample volume, with 41 high-throughput simultaneous processing and 8 ultra-high-pressure simultaneous processing, both of which are the largest in the world.
Anton Paar also has HVT intelligent pressure control technology, and the unique cooling air duct design with multiple cooling air channels on the outer wall of the digestion tube, and the number of cooling air channels is 10. Express cooling, easy to operate. As the inventor of the two-dimensional dual magnetron, Anton Paar controls the world's best microwave technology, with the lowest power usage and the best microwave homogeneity, so that it can handle large batches of samples and ensure the digestion of each sample.
Patented negative pressure cooling system, 15 minutes of rapid cooling to below 70 °C, to achieve the purpose of fast operation;
The Multiw**E 5000 is Anton Paar's third-generation microwave sample preparation system, which is a special instrument for the certification of the American Standards Institute NIST and the European Union Standard ERM System, and the China National Standards Center due to its excellent performance in digestion and elemental rate.
3 After-sales service.
Anton Paar is the only imported microwave digester that has set up a factory office in China to provide users with professional after-sales service and technical support. In China, there are original Austrian engineers stationed in China.
4 Experimental part.
4.1 Instruments and experimental equipment: Multiw**E 5000 microwave digestion instrument, 20SVT50 rotor, ultrapure water machine, 5ml micropipette. 4.2 Reagents, samples Nitric acid, ultrapure water Sample: Nylon 66 raw material, the main component is adiponitrile Nylon 66 is formed by polycondensation of adipic acid and hexamethylenediamine. Hexanediamine is produced by hydrogenation of adiponitrile, and it takes 0 to produce 1 ton of nylon 6652 tons of hexamethylenediamine. More than 90% of adiponitrile is used in the production of nylon 66, and the rest of the downstream applications are very small, with the localization and scale of adiponitrile, nylon 66 will become a general material, photovoltaic, semiconductor, new energy and other industrial upgrading and demand iteration, will bring the demand for new materials, and adiponitrile or will become the precursor and intermediate of these new materials.
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4.3 Digestion Step 1Weigh sample 01 g, add nitric acid. 2.Digest the sample as follows.
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The digestion effect of the sample is shown in the figure below, the diluted solution is transparent and clear, and the sample is completely digested. Looking at the digestion procedure diagram, the sample reaction is still very friendly, and the digestion conditions can be optimized.
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5 Conclusion The temperature is controlled throughout the experiment, and the temperature of each position can be monitored and displayed in real time. With the Anton Paar Multiw**E5000 microwave digester 20SVT50 intelligent pressure relief rotor, these samples can be completely digested to meet customer requirements.