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Insulin-like human growth factor I is a protein from the family of insulin-like growth factors, a hormone with a pleiotropic effect, which is involved in the growth processes of cell proliferation and differentiation, promotes cell survival, maintains their functions, and has anabolic effects.

Green fluorescent protein (GFP) isolated from the jellyfish species Aequorea Victoria, consists of 238 amino acids with a molecular weight of about 27 kDa. GFP is characterized by two absorption peaks in blue light at 395 nm (major) and 475 nm (minor) and a fluorescence peak at 498 nm in the green range. At present, the gene for this protein and proteins derived from it, glowing with different colors, is used as a luminous marker in cell and molecular biology to study protein expression in cells and living organisms in vivo. GFP also allows purification of recombinant proteins, where GFP or its derivatives are used as an affinity label.

The universal METOLAB 702 device is a stationary hardness tester, a modification of METOLAB 701, equipped with a large LCD display, a built–in printer, and also having the functionality for statistical processing of measurement results (calculation of minimum/average/ maximum values, conversion of results into various scales, storing data in memory, etc.). The device is designed to determine hardness by scales Rockwell, Vickers and Brinell of various materials and products – steels, cast iron, non-ferrous metals, soft alloys, etc. The METOLAB hardness tester has high accuracy, performs measurements in a wide range, and also provides high repeatability of results. Distinctive features of the stationary METOLAB 702 hardness tester: Scales for Rockwell measurements: HRA, HRB, HRC; Scales for Brinell measurements: HBW2.5/31.25, HBW2.5/62.5, HBW5/62.5, HBW2.5/187.5, HBW 10/100, HBW 1/30; Vickers measuring scales: HV30, HV100; Displaying all the necessary information on a large LCD screen; Possibility of statistical processing of measurement results – calculation of minimum/average/maximum values, conversion of results into various scales, storing data in memory and much more; Electromechanical drive for application and removal of load; Prompt change of the applied load by turning the force change knob; The ability to print the results on the built-in mini printer; Built-in digital micrometer with backlight, magnification 37.5 and 75x. Basic delivery package: Stationary universal METOLAB 702; Conical diamond Rockwell indenter (120° angle) - 1 pc.; Vickers diamond indenter (136° angle) - 1 pc.; Indenter with 1.5875 mm ball - 1 pc.; Indenter with 2.5mm ball - 1 pc.; Indenter with 5.0 mm ball - 1 pc.; Large flat table 150 mm - 1 pc.; Medium flat table 60 mm - 1 pc.; V-shaped table 40 mm - 1 pc.; Hardness measures - 1 set; 15x microscope - 1 pc.; 2.5x lens - 1 pc.; 5.0x lens - 1 pc.; User Manual.

An analogue of GCHA-21, but equipped with a built-in system of catalytic purification of the resulting nitrogen from hydrocarbons. GCHA-21D nitrogen generators are designed to produce nitrogen of the highest purity in laboratory conditions. The warranty period of operation of the generator is 18 months from the date of sale by the manufacturer. Technical specifications The grade of nitrogen produced according to GOST 9293-74 is high purity, grade I The volume fraction of nitrogen is not less than, % vol. (including impurities of inert gases: argon, neon, helium) 99,999 The volume fraction of oxygen is not more than, % vol. (ppm) 0.0005 (5 ppm) The volume fraction of water vapor is not more than, % vol. (ppm) 0.0007 (7 ppm) The volume fraction of hydrogen is not more than, % vol. (ppm) 0.0002 (2 ppm) The volume fraction of the sum of carbon-containing compounds in terms of methane is not more than, % vol. (ppm) (with a concentration of methane in the supply air not more than 5 ppm)* 0.00001 (0.1 ppm) Maximum nitrogen capacity is not less than 21 liters/hour (350 ml/min) Nominal output pressure of nitrogen is 4 ati The time of setting the operating mode for single-shift operation is no more than 45 min Nominal inlet air pressure is 6 ati Maximum allowable inlet air pressure is 7 ati Minimum inlet air pressure is 5 ati Compressed air consumption, at nominal inlet pressure is no more than 300 l/h (5 l/min) Power consumption is not more that 110 VA Overall dimensions, (width x depth x height) are not more than, mm 230x425x510 Weight, not more than, kg 25 Working conditions: Ambient temperature, °C from +10 to +35 Electric power supply from a single-phase AC network with a voltage of 220 ± 10% and a frequency of 50 ± 1 Hz Average full service life is at least 6 years The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

The drip collector is designed to remove droplet moisture when sampling air from indoor ventilation systems and is installed in gas aerosol sampling systems. Purpose: removal of droplet moisture from the selected air sample; accumulation of droplet moisture; indication of the level of accumulated moisture; draining the accumulated moisture.

The nitrogen generator is designed to create an inert atmosphere, fill low-pressure tanks, "wash" test tubes with inert gas and other applications that require a large, by laboratory standards, nitrogen consumption with reduced requirements for its purity. The warranty for the device is 18 months, for the built–in compressor - 12 months from the date of sale. Technical specifications Volume fraction of nitrogen is not less than 99.5 % vol. (including impurities of inert gases — argon, neon, helium) Volume fraction of oxygen is not more than 0.5% vol. (ppm) Volume fraction of water vapor is not more than 0.002 % vol. (ppm) (20 ppm) Maximum nitrogen capacity is not less than 400 l/hour (6.66 l/min) Nitrogen outlet pressure is 4±0.2 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 60 db Power consumption is not more than 800 VA Overall dimensions, (width x depth x height) are not more than 360x680x550 mm Weight is not more than 46 kg Operating conditions: ambient air temperature, oS from +10 to +35 electric power supply from single-phase AC voltage, 220 ± 5% frequency, Hz 50 ± 1 Average full service life is at least 6 years The generator for electrical safety meets the requirements of GOST 12.2.025-76. class 1, type

They are designed for purification of nitrogen (BOV-1A) and air (BOV-1) from hydrocarbons Technical specifications Inlet air pressure is not more than 825 ± 5% kPa (8 ati) Output pressure control limits is from 0 to 413 kPa (from 0 to 4.0 ati) Minimum required excess of inlet pressure over outlet pressure is not less than 103 kPa(1 ati) Maximum permissible air flow is not more than 1.0 l/min Concentration of hydrocarbons at maximum flow rate in the outlet air is no more than 0.1 ppm Water vapor concentration at 20°C and 100 kPa is no more than 10 ppm Instability of the output pressure when the flow rate changes from 0 to the maximum value is not worse than ± 7 kPa Instability of the output pressure when the input pressure changes by ± 100 kPa is not worse than ± 7 Ready time after switching on at a flow rate not exceeding the maximum value is no more than 30 min Power consumption is not more than 50 VA Overall dimensions, (width x depth x height) are no more than 185x310x310 mm Weight is not more than 5.0 kg Working conditions: ambient temperature, °C, from +10 to +35 relative humidity of the ambient air, %, no more, at 35 ° C 80 electric power from a single-phase AC network with a voltage of 220 +10% -15% and a frequency of 50 ± 1 Hz

B – vacuum, Su – for drying, 30 – the volume of the working space in dm3, 6 – the maximum operating temperature divided by 100, i.e., 600 ° C, A – the furnace is equipped with an adsorber

The Kors NV-1200 SHV-U laboratory fume hood is a single—frame cabinet with a ceramic granite countertop 1100 mm wide and a small built-in polypropylene sink. External dimensions of the cabinet (W×D×H): 1100×700×1960 mm. Dimensions of the working area (W×D×H): 1068×540×750 mm. Table top: granite tiles. Reliable fume cupboard for laboratories The cabinet is available in two versions: with a hood from the lower cabinet and without it. In a cabinet with a hood, various aggressive reagents can be stored, in a cabinet without a hood, it is better to store only laboratory glass or instruments. Working surface material: porcelain tile. It is moisture-resistant and perfectly withstands high temperatures. It is resistant to prolonged exposure to concentrated acids, alkalis and organic solvents. Limited resistance to hydrofluoric acid. This is one of the most popular types of countertops for laboratory furniture. The small sink-drain is made of polypropylene, resistant to aggressive chemicals. Its diameter is 135 mm and its depth is 110 mm. The base of the cabinet is made on an all-welded metal frame in powder coating. The side laminated panels (chipboard 16 mm thick) are edged on the facade with a durable PVC edge 2 mm thick, which increases their impact resistance and mechanical strength. The cabinet legs are adjustable in height within two centimeters, allowing you to place the cabinet even on a fairly uneven floor. Working area of the fume cupboard The working area is closed by one lifting frame with a counterweight. It has two exhaust zones: the hood of the exhaust box and the level of the countertop. Diameter of the flange for connection to the ventilation system: 150 mm. Working area size (W×D×H): 1068×540×750 mm. Please note that the cabinet narrows upwards. At a height of 50 cm, the depth of the working area will be 410 mm, at a height of 70 cm: 365 mm. If you need to place high equipment, then make sure that it is small enough in length, otherwise you will not be able to close the cabinet. The working area is illuminated by a fluorescent lamp (included in the package). The switch is located on the right side of the cabinet, next to the sockets. The fume cupboard is equipped with two sockets, one of them with grounding. Sockets have the IP20 degree of protection, maximum load: 1.5 kW. What are the other options? If you need to place large equipment, you may be interested in the cabinets for muffle furnaces. Also in the line there are large cabinets with plumbing fixtures: NV-1500 NV-U and two-frame NV-1500 SHV-U and NV-1800 SHV-U.

The NV-1200 LKv-Yar is a laboratory table with a countertop made of granite tiles. The width of the table top is 1200 mm. It is designed for standing work (table height — 850 mm) and is usually used for placing devices. The table top is made of granite tiles. The tile is moisture-resistant and perfectly withstands high temperatures. It is resistant to prolonged exposure to concentrated acids, alkalis and organic solvents. Limited resistance to hydrofluoric acid. This is one of the most popular types of countertop materials for laboratory furniture. Two 220 V sockets are built into the table, one of them is grounded. The side laminated panels (chipboard 16 mm thick) are edged on the facade with a PVC edge 2 mm thick, which increases their impact resistance and mechanical strength. The legs of the table are adjustable in height within two centimeters, allowing you to place it even on a rather uneven floor. Dimensions of the table when assembled (W×D ×H): 1200×700×850 mm. Advantages of tables NV-1200 LKv-Yar An inexpensive solution for laboratories that value the reliability and durability of furniture; Suitable for small rooms; Heating plates or baths can be placed on the granite surface resistant to high temperatures; It is convenient to work while standing: the height of the working surface is 85 cm; In the drawers you can store accessories to the devices that are on the table, or laboratory utensils. Application of tables NV-1200 LKv-Yar Tables of the NV series are used in laboratories of the widest profile: at food and light industry enterprises, in scientific and educational workshops, in chemistry classrooms, quality control centers, medical organizations and many others.