The X-ray fluorescence analyzer (XFA) "PRIZMA" is designed to determine the elemental composition and content (concentration) of chemical elements in oils, lubricants and working fluids, in drinking, natural and waste water, in soil extracts and gaseous media after appropriate sample preparation (settling on filters).
Application areas: ecology, environmental monitoring; diagnostics and monitoring of the technical condition of aircraft engines, diesel locomotive engines, etc.; chemical production; metallurgy; pharmacology; quality control of petroleum products; quality control of food products, etc. The technical characteristics of the analyzer allow adapting and certifying the XFA "PRIZMA" not only for the above, but also for other areas of activity.
Composition of the X-ray fluorescence analyzer "PRISMA" The X-ray fluorescence analyzer "PRISMA" consists of a sensor containing a characteristic radiation excitation unit based on an X-ray emitter, a measuring chamber, a spectrometer with a semiconductor (nitrogen-free) Si-pin detector and a control panel, a personal IBM-compatible computer and a set of application software.
Determination of the content of chemical elements in samples is carried out by the X-ray fluorescence method, which is based on the dependence of the flux density of the characteristic radiation of elements on their concentration. The characteristic radiation of the analyzed elements is excited by the bremsstrahlung of the X-ray tube, which is part of the X-ray emitter, and is recorded by a semiconductor silicon pin detector. Quanta of characteristic radiation of various elements cause current pulses in the detector with an amplitude proportional to their energy. Amplified by the preamplifier of the detection unit, the current pulses enter the processing and accumulation unit of spectrometric information, where they are processed, converted into digital form and then sent to a personal computer, accumulated and processed according to specified programs. Thus, the registration of characteristic radiation allows for analysis both qualitatively (recognition of elements by the energy of the spectra of characteristic radiation) and quantitatively (the content of elements in the sample).
Main technical characteristics of the PRIZMA RFA Range of determined elements from S to Bi Number of simultaneously determined elements up to 20 Detection threshold of chemical elements on filters, μg, no more than 1 Detection limits of chemical elements on filters lower limit, μg, upper limit, μg, 2 5000 Basic instrumental error (on a standard sample with an element content of at least 10 μg), %, no more than 5 Limit of permissible value of the standard deviation of the random component of the analytical signal error, %, no more than 3 Relative error in determining the content of elements (depends on the substance (material), element and its content in the substance (material)), % 0.1 – 10.0 Time to establish the operating mode, min, no more than 5 Time of continuous operation of the device with a stationary power source, hours, no less than 6 Weight of the device (excluding the computer), kg, no more than 10 Overall dimensions of the device (excluding the computer), mm, no more than 480x360x170 Power source Autonomous (12V) or from the network ~220V The device is used in the fields of technology and production, where it is necessary:
high threshold sensitivity to the determination of chemical elements; high reliability and reproducibility of results; high expressivity of multi-element analysis; portability of hardware, with high operational reliability and ease of maintenance. The design of the analyzer meets the requirements of the sanitary rules of the Russian Federation: Sanitary and Epidemiological Conclusion No. 77.FU.02.944.P.000835.06.01 dated 06/22/2001.
The device is certified in the Russian State Standard system (certificate of conformity ROSS RU.AYU40.B00931) and is included in the State Register of Measuring Instruments under No. 20864-01.
To solve specific problems, specialized complexes have been developed, including the hardware itself - RFA "PRIZMA", regulated methods of determination and adapted software:
X-ray fluorescence complex for environmental monitoring "ECO-PRIZ" Automated diagnostic diagnostics of aircraft engines "ADK PRIZMA" The manufacturer of analyzers provides training for the Customer's personnel, warranty service, post-warranty service, updating of programs and methods.
METHODOLOGICAL SUPPORT FR.1.31.2006.03107 Mass fraction of metals (wear products) in working oils when diagnosing the technical condition of aircraft gas turbine engines. Methodology for performing measurements using the X-ray fluorescence method on the energy-dispersive X-ray fluorescence analyzer "ADK PRIZMA" GSO No. 8465-2003 - 8486-2003 State standard samples of the mass fraction of elements precipitated on a filter from aqueous solutions