GEYSER-2A DEVICE

Technical specifications: Range of operation 280-710 nm Diffraction grating (replica) 1250 strokes per millimeter The area of maximum energy concentration 350-450 nm The working order of the spectrum is the first The signal-to-noise ratio on the line is 632.8 nm when detuning from the center of the line by ± 3.3 nm is not worse than 3 * 106 times The slits are fiber optical fibers with a diameter of 200 microns, stacked in 1 row. The height of the slits is 5 mm The resolution of the monochromator with these slits is not worse than 0.34 nm The accuracy of the wavelength setting is not worse than 0.2 nm Dimensions are not more than 335 x 153 x 240 mm Weight is not more than 8 kg Supply voltage 187-242 V Power consumption not more than 12 watts Current frequency 49-51 Hz

The water treatment system (hereinafter referred to as the system) is used for the preparation of water used in hydrogen generators, for the preparation of solutions, chromatographic samples, capillary electrophoresis, high-performance liquid chromatography (HPLC), etc. analyzers requiring the use of high purity water. The system is connected directly to the municipal water supply line and allows obtaining high–purity deionized water with a specific electrical conductivity of 0.06 - 0.1 mcm/cm. The device uses multi-stage water purification. Technical specifications System output capacity, l/h not less than 6 Specific electrical conductivity of water, mcm/cm not more than 0.06 – 0.1 Power supply - single-phase AC 220V, 50/60 Hz Maximum power consumption, kW 0.1 Dimensions (W x D x H), mm 200 x 560 x 440 Weight, not more than 20 kg

The characteristics of the device are similar to the GVCH-12D model; the difference is in the absence of a reactor to remove traces of oxygen and the performance, respectively, is 9 / hour (150 ml/min). Optionally equipped with a reactor for using hydrogen as a carrier gas. Technical specifications Purity of hydrogen in terms of dry gas is about 99.998% Concentration of water vapor at 20 OC and 1atm is no more than 5 ppm In the output pressure stabilization mode The range of the specified output pressure of hydrogen is from 1.5 to 6.1 ati Stability of the output pressure of hydrogen is not worse than ± 0.02 ati Maximum hydrogen capacity reduced to normal conditions is 9 l/h The time of setting the operating mode, with the output turned off is no more than 15 min In the performance stabilization mode: The range of the specified hydrogen performance is from 0 to 9 l/h Maximum developed pressure in performance mode is 5.0 ati Volume of distilled water to be poured is 1.0 l Distilled water consumption is no more than 0.015 l/hour Water consumption is 1.6 g/l of hydrogen The average life of a replaceable deionization filter cartridge (at maximum performance and single-shift operation) is at least 1 year Average power consumption: in stationary mode is no more than 80 VA maximum (at startup) is no more than 100 VA Overall dimensions of the generator, (width x depth x height) are not more than 230x470x450 mm The mass of the generator is not more than 15 kg Operating conditions: ambient temperature, °C, from +10 to +35 powered by single-phase AC voltage, V, 220 (+10 -15)% and frequency, Hz, 50 +1 The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

The generator is designed to produce nitrogen of the highest purity and zero air in laboratories. Differences from the GCHA-15D-60V: lower air performance; the presence of a built-in oil-free compressor ensures complete autonomy of the device. The warranty for the device is 18 months, for the built-in compressor is 12 months from the date of sale. Technical specifications The grade of nitrogen produced according to GOST 9293-74 is high purity, grade I Volume fraction of nitrogen is not less than 99,999 % vol. (including impurities of inert gases — argon, neon, helium) Volume fraction of oxygen is not more than 0.0005 % vol. (5 ppm) Volume fraction of water vapor in nitrogen is not more than 0.0007 % vol. (7 ppm) Volume fraction of the sum of carbon-containing compounds in nitrogen in terms of methane is not more than 0.00001 % vol. (0.1 ppm) Maximum nitrogen capacity is not less than 15 liters/hour (250 ml/min) Nominal output pressure of nitrogen is 4 ati Volume fraction of water vapor in the generated air is not more than 0.0007 % vol. (7 ppm) The volume fraction of the amount of hydrocarbons in the produced air in terms of methane is not more than, 0.00001% vol. (0.1 ppm), (with a concentration of methane in the supply air not more than 5 ppm) Maximum air capacity is not less than 40 liters/hour (670 ml/min) Nominal output air pressure is not less than 3.5 ati The time of setting the operating mode for single-shift operation is no more than 45 min Noise level generated by the compressor is no more than 50 dB Power consumption is not more than 300 VA Overall dimensions, (width x depth x height) are not more than 230x470x510 mm Weight is not more than 27 kg Operating conditions: ambient temperature, ° C, from +10 to +35 electric power supply from a single-phase AC network with voltage, V, 220 ± 10% and frequency, Hz, 50 ± 1 Average full service life is at least 6 years The generator meets the electrical safety requirements of class 1, type H according to GOST 12.2.025-76

The Meta-chrome digital gas flow meter is designed to maintain a given pressure and the ratio of the amount of gases (in the flow mode) or gas flow (in the intake mode) in vacuum installations with automatic and manual control. technical specifications The number of control channels is 2 (or more on request). The maximum flow rate for each of the channels is 700 cm3/min. The possibility of using gas correction coefficients, the most commonly used gases are listed in the leaker database. The accuracy of maintaining a given proportion of gases is 5%. The accuracy of maintaining the specified gas flow rates is 3%. Input pressures from 1 to 4 atm. Electric power supply from a single—phase AC network with voltage from 187 to 242 V, frequency (50 ± 1) Hz, operating mode - continuous. Power consumption (without a personal computer), no more than — 30 VA. Overall dimensions (width × depth × height), no more than 165×350×215 mm. Weight, not more than 5.5 kg.

Technical specifications: Limit of detection of the control substance (phenol) in water, mg/dm3, no more 0,005 Measurement range of the mass concentration of the control substance (phenol) in water, mg/dm3 from 0.01 to 25 Measurement range of the directional transmission coefficient, % from 5 to 100 Limits of permissible absolute error of measurements of the directional transmission coefficient, % ± 2 Warm-up time, min, no more than 30 Continuous operation time, h, at least 8 Overall dimensions, mm, no more than 305x320x110 Weight, kg, no more than 6.5 AC power supply: - AC power supply voltage, V - frequency, Hz (220 ±22) (50 ±1) Power consumption, In × A, no more than 36 Time to failure, h, not less than 2500

The dispenser "DAZH 4000" is designed for automatic insertion of liquid samples into the evaporator of the gas chromatograph, provides: control from the software, setting variable parameters of algorithms for washing and sample entry, storing the operating parameters of the dispenser in the method. Technical characteristics: The number of vials in the carousel, pcs up to 30 The volume of installed vials, ml 0.1-2ml Number of injections from one vial 1-99 Replaceable syringes in volume, ml 10, 100, 250, 500 The volume of the injected sample, ml : from 0.01 to 500 The discreteness of setting the sample volume, µl: from 0.01 to 1 Sampling and insertion rate, µl/s: from 0.01 to 5000 The speed of needle insertion into the evaporator, discret 3 Immersion depth in the vial and evaporator, variable up to the length of the syringe needle, mm 1 – 99 The discreteness of the dive depth setting, mm 0,1 The number of pumping during sampling 0-15 Number of solvent washes 0-15 Needle exposure time in the evaporator, sec 0-99 The discreteness of setting the needle shutter speed, sec 1,0 Sample input modes Simple insertion, Sandwich, Solvent sandwich, Sandwich with internal standard Flushing mode From the vial Supply voltage, V (frequency, Hz) 220 (50) Power consumption, W 154 Weight, kg, no more 2,9 Overall dimensions, mm 175x270x420 Communication with the computer Ethernet

Technical specifications: The range of working detection wavelengths, nm from 190 to 380 Limits of permissible absolute error of setting the working wavelength, nm ± 5 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: 220 Overall dimensions (LXC), mm, no more 420x570x360 Weight, kg, not more than 25

Vacuum membrane pump PL.HM03.02.45 Primelab is an effective device for creating a vacuum, pumping gases and vapors. It has a high pumping speed (38 l/min) with a maximum residual pressure of 45 mbar. All materials in contact with the working fluid are made of PTFE. This material has rare chemical and physical properties. In this case, the pump does not require regular maintenance. Ease of use and reliability make the PL.HM03.02.45 diaphragm vacuum pump an ideal option for laboratories of any scale and production that require high-quality and controlled evacuation.

The device is designed to extract target organic substances from liquid and solid samples. Implements the latest method of sample preparation in chemical analysis - extraction freezing with centrifugation of EVCB (Patents of the Russian Federation RU2303476/2007, RU2564999/2015, Patent of the Kyrgyz Republic KG388/2020, International Application PCT/RU2015/000615). Scope of application - hydrochemistry, chemical and toxicological analysis, biochemistry, food research, etc. technical specifications The temperature range of extraction freezing with centrifugation is from -(minus) 28 to +25 °C. Rotor speed with the possibility of programming the mode 100-8000 rpm Separation factor up to 6600 g Cryoextractor power supply from AC 220 V, 50 Hz Power consumption, not more than 0.3 kW The mass of the cryoextractor is not more than 50 kg Overall dimensions (HxWxD), mmxmmxmm no more than 900x600x600 Number of simultaneously extracted samples (individually on request)

NanoEducator II, despite its compactness and ease of operation, supports all basic techniques of atomic force and scanning tunneling microscopy, so it can be used for any routine AFM and STM measurements and experiments in scientific research. Here are the results of some experiments in various scientific applications: Study of atomic structures Study of metallic nanostructures Study of magnetic structures Study of polymer objects Study of biological objects Study of carbon nanomaterials

Technical specifications: Ambient temperature, °C from +10 to +35 Relative humidity (at +25 °C), % no more than 98 Atmospheric pressure, kPa from 84 to 106.7 Power supply 220  22 V, 50  1 Hz Power consumption, VA no more than 150 Overall dimensions (LWC), mm Monitor Multiplexer 665x482x222 665x482x222 Weight, kg Monitor Multiplexer (2-16 channels) 25 15 - 25 Average time to failure, h 12000 Average service life, 5 years

The device is equipped with an automatic regeneration system of fine filters, which reduces the maintenance of the device to a minimum. In terms of the totality of technical characteristics and ease of operation, it has no equal among similar laboratory hydrogen generators. The hydrogen capacity is 12 liters/hour (200 ml/min). Technical specifications Purity of hydrogen in terms of dry gas is about 99.9999% Concentration of water vapor at 20OC and 1 atm is not more than 5ppm Total hydrogen capacity, reduced to normal conditions is not less than 12 l/h The range of the specified output pressure of hydrogen is from 3.0 to 6.1 ati Stability of the output pressure of hydrogen is not worse than ± 0.02 ati The time of setting the operating mode, with the output turned off is no more than 30 min Volume of distilled water to be poured is 1.0 l Distilled water consumption is no more 0.02 l/hour Water consumption is 1.6 g/l of hydrogen The average life of the replaceable cartridge of the deionization filter (at maximum performance and single-shift operation) is not less than 1 year Average power consumption: in stationary mode is no more than 180 VA maximum (at startup) is no more than 220 VA Overall dimensions of the generator, (width x depth x height) is not more than 230x470x450 mm The mass of the generator is not more than 16 kg Operating conditions: ambient temperature, °C, from +10 to +35 powered by single-phase AC voltage 220 V(+10 -15)% and frequency 50 +1 Hz The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

Technical specifications: Melt flow rate for 10 min, g 0.1 - 99.9 The dimensions of the capillary opening, mm dia. 2,095 diam. 1,048 (optional) diam. 1,180 (optional) Set of loads, kg 0,325-5 10-21,6 (optional) Temperature range in the working chamber, °C +50...+450 Accuracy of temperature maintenance, °C: - in the range of 50...300 °C: ± 0.1 - in the range of 300...350 ° C: ± 0.2 - in the range of 350...450°C: ±0.3 The discreteness of setting the temperature of the chamber, ° C 1 Time to enter the operating mode, no more, min 40 Power supply, V/kW 220/0.8 Installation dimensions, WxDxH mm 513x445x590 (920 is the maximum height with a fully loaded polymer chamber and a full stack of loads with a handle for their installation) Installation weight, not more than 70 kg

NT-MDT Spectrum Instruments is an INTEGRA Nano IR–scattering scanning near‑field optical microscope (s-NSOM) designed for the infrared spectral range. The AFM probe is located in the focus of an optical system that directs the IR laser radiation to the sample and collects the optical response. The collected radiation is sent to the Michelson interferometer for optical analysis. The far-field component of the collected signal is suppressed by synchronous detection. The INTEGRA Nano IR system allows detecting the amplitude and phase of the near-field signal. The spatial resolution of the resulting reflection and absorption contrasts is approximately 10 nm and is determined only by the size of the tip of the probe.