Metrology

Range: 0.3 ... 20 m/s Accuracy Characteristics: (0.1+0.05V) m/s Application conditions: For primary measuring transducers: in the range of 1-20 m/s from minus 30C to plus 50C.

We offer expert laboratories of physicochemical methods of analysis a gas chromatograph with a quadrupole mass spectrometric detector «MAESTRO-αMS». Quadrupole GC-MS «MAESTRO-αMS» is in demand for targeted research (screening) and non-targeted search. In targeted studies, it is necessary to detect given target compounds in samples of various nature and origin at the level of residual amounts, for example, several picograms of the target compound in the injected 1 μl of liquid sample. Most often, targeted research is carried out in the following areas of laboratory screening: ecology, food safety, clinical monitoring, narcology, doping control, production control of various raw materials. In targeted studies, it is often required not only to confirm the presence of a compound in a sample, but also to determine the level of its content quantitatively, since both the list of target compounds and the permissible level of their presence in the sample are specified by regulatory documents. Quantitative analysis requires standards for the substances you are looking for. When conducting a non-target search, as a rule, it is required to analyze a sample of unknown composition, in other words, to find as many compounds as possible in the sample and identify (identify) each of them. Since the identification of a detected compound is carried out by comparing its experimental mass spectrum with the spectrum of a pure substance obtained under standard conditions, this task requires reference libraries of mass spectra of pure substances, as well as tools for working with mass spectra, for example: algorithms for cleaning experimental mass spectra from background and spectral noise (mass spectrum deconvolution algorithms), library search and comparison algorithms. An off-target search is called a qualitative analysis, since the researcher is primarily interested in the list of detected substances, and not in the quantitative assessment of their content in the sample. When creating MAESTRO-αMS, we took into account our own many years of experience in operating imported analogues. We have made the device inexpensive. We have made the device compact: The modern design of the device made it possible to make the MAESTRO-αMS really compact, so that the device occupies the smallest possible area on the laboratory table. The layout of the device allows you to remove the ion source on the front flange for cleaning and replacing the cathodes, if necessary. We have reduced the cost of operation: When developing the MAESTRO-αMS, we sought to increase the resistance of the device to sample matrices and use a minimum of consumable materials in order to eliminate downtime for maintenance and replacement. As a result, we have created an extremely stable ion source and a perpetual photomultiplier detector. We have created special software: Even at the first acquaintance with the software, it becomes obvious that being in the window of each button and each parameter to be changed is expedient and logical. Our software product was created for the convenience of the operator, so we implemented the necessary and eliminated the unnecessary. We used the principle of one active window, in which the operator moves sequentially step by step, performing hardware settings, setting the data collection method, subsequent processing algorithms, templates for presenting the results. MAESTRO-αMS offers a wide range of scanning modes, built-in algorithms for working with mass spectral data, convenient unloading of initial data arrays for their processing in specialized software packages, graphics export for presentations and scientific publications. You can use several libraries of mass spectra at the same time, or create your own for your typical tasks. Finally, we provide a 5-day training course for professionals who want to understand the theoretical foundations of the method and their implementation in the hardware of modern quadrupole GC/MS. The volume and depth of presentation of the material from the developers of the device is intended to lay the foundation for the effective use of «MAESTRO-αMS» in the future. Some technical characteristics of MAESTRO-αMS: • Instrumental detection limit (SIM, OFN @272 m/z ) < 10 fg; • Scan modes: scan for selected ions, full scan in a given mass range, combined scan mode; • The number of simultaneously connected libraries of mass spectra is at least 10.

Designed for storing and transmitting the size of a resistance unit, as well as for checking and calibration of working resistance measures and complex resistance meters with a four-pair or five-clamp connection scheme in the frequency range from DC to 10 MHz. Description: Each of the resistance measures H2-2 is a precision resistor, in series and in parallel to which fitting resistors are connected, placed in an aluminum housing. The measures have a four-pole connection scheme. Four BNC type connectors (plugs) are located on the wall of the housing. The distance between the connectors is 22 mm. In measures of 100 kOhm and 1 mOhm, it is possible to adjust the value of the time constant of the measure using a tuning capacitor.

Pulse duration: ......10-15 microseconds The duration of the leading edge of the pulse:......no more than 20 ns Pulse amplitude: ...... at least 3V at a load of 50 ohms

A unique highly sensitive device for monitoring dose loads on the lens, mucous membranes and skin Spectrum display mode when connected to a PC It is not intended for measuring the natural radiation background

Stationary complex for monitoring various parameters of the radiation situation, depending on the type of connected detection units: - continuous monitoring of gamma and neutron radiation in rooms and workplaces; - assessment of alpha and beta and gamma contamination of surfaces of objects, personnel clothing and small items. Purpose: measurement: ambient dose equivalent power of photon and neutron radiation; alpha and beta radiation flux densities; surface activity of Pu-239 and Sr-90+Y-90 radionuclides; alarm about exceeding the set thresholds.

The filter holder FD-05D is designed to install aerosol and iodine filters in it, in an amount of up to 8 pieces. The filters are arranged sequentially. It is used in sampling systems of gas-aerosol media at radiation-hazardous and other production facilities.

Calculation of the expected effective dose of internal radiation per year from incorporated 137Cs and 134Cs Flexible software control of the spectrometer functions, the formation of a database and a report on the results of the survey Express control capacity - 15 people per hour The possibility of sharing AT1316(AT1316A) and AT1322(AT1322/1) The possibility of accommodation in a minibus as part of a mobile radiation control laboratory

The result of determining the energy distribution of the neutron radiation flux density is used to calculate such quantities as: - integral neutron flux density; - the average energy of neutron radiation in the spectrum; - the average neutron radiation energy by dose; - dose equivalent per unit flow density; - dose equivalent; - effective dose. ▪ Methodological support of measurements ▪ It is possible to supply an expanded set of polyethylene retarder spheres with diameters: 3,5”; 4,5”; 5”; 7”; 9”; 9,5”