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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.

Technical specifications: Measurement time, 80 seconds Standard sample volume in a cuvette, 50 ml Spectral range, cm-1 from 8700 to 13200 Spectral resolution, cm-1, no more than 10 The limit of the permissible value of the absolute error of the wave number scale, cm-1 ±0,5 Analyzer warm-up time, min, no more than 30 Continuous operation time of the analyzer, h, at least 8 Overall dimensions, mm, no more than 530x450x380 Weight, kg, not more than 32 Power supply of analyzers from the AC network: AC power supply voltage, V frequency, Hz (220 ±22) (50 ±1) Power consumption, V× A, not more than 110 Average time to failure, h, not less than 2500

Technical specifications: The working wavelength of detection, nm 254 The range of variation of the operating voltage on the capillary, kV from 1 to 25 The detection limit of benzoic acid (with positive polarity of the high-voltage unit) at a signal-to-noise ratio of 3:1, mcg/ cm3, not more than 0.8 The limit of detection of chloride ions (with a negative polarity of the high-voltage unit) at a signal-to-noise ratio of 3:1, micrograms / cm3, not more than 0.5 The limit of the permissible relative mean square deviation (SKO) of the output signal over the peak area, %5 The limit of the permissible relative mean square deviation (SKO) of the output signal for 8 hours of operation, % 6.5 Operating mode setting time, min, no more than 30 Power supply of systems from the AC network with voltage, V; frequency, Hz. 220 ±22 50 ±1 Power consumption consumed by the system, In ×A, no more: 150 Overall dimensions (LXC), mm, no more 420x460x360 Weight, kg, not more than 25

water type I: 5.0, water type II: 5.0 Purpose obtaining super pure type 1 water according to GOST 52501-2005 "Water for laboratory analysis" FS.2.2.0019.18 "Water for injection" Heating elements Heating element 3.5 kW 220V (stainless steel) – 1 pc. The quality of the produced water according to the requirements for type I and II water according to GOST 52501-2005 "Water for laboratory analysis" and the articles of the FS.2.2.0019.18 "Water for injection" Type of current, frequency, voltage variable single-phase, 50 Hz, 220 V Power consumption, kW 3,6 Overall dimensions (L×W×C), mm 670×470×490 Weight, kg 35.0

Designed for centrifugation of biological and other liquids. The tube is conical graduated with a window for recording and a screw cap. The calibration on the test tube is applied with white paint, resistant to erasure. The test tube is made of polypropylene, which allows it to be autoclaved in standard mode.

It is intended for sampling, conducting chemical, biological, microbiological analyses, in small volumes of chemical reactions. It is made of transparent polystyrene, hermetically sealed with a blue or red screw polypropylene lid.

The PrimeLab dark glass reagent jar is designed to work with a small amount of a substance of any consistency (up to 250 ml). A capacity scale is applied to its wall to quickly determine the volume of the contents of the substance. Made of durable glass that is wear-resistant. Characteristics: • Volume – 250 ml • Height – 1386 mm • Diameter – 70 mm • Thread - GL45.

The tube is conical with a "skirt", designed for centrifugation of biological and other liquids. The test tube is closed with a screw cap, equipped with a stability skirt (for convenient placement in an upright position). The divisions are applied with white paint resistant to erasure. There is also a field for recording. The conical tube is made of polypropylene, which allows it to be autoclaved in standard mode. Relative centrifugal acceleration 3000g