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To determine small concentrations of substances, in some cases it is impossible to do without their concentration in special traps. An example of the need for such concentration is the determination of impurities in permanent gases (Ne, He, H2, Ar, O2, N2, Kr, Xe), the concentration of impurities is less than 1 ppm. Considering that these impurities can be not only hydrocarbons, but also permanent gases themselves, the use of direct detection of impurities by a catarometer is impossible. It is also not always possible to use highly sensitive but expensive detectors (GID, EDD, etc.). TECHNICAL CHARACTERISTICS The volume of the trap is 5 ml. The volume of the Dewar vessel (serial metal thermos) is 1200 ml. The concentration temperature range is from minus 88.6 (ethane) to minus 269 °C (helium). The ability to calibrate the chromatograph from the cylinder without disturbing the gas circuit. The possibility, simultaneously with concentration, to purify the gas intended for purging the trap from impurities (in a similar trap). Overall dimensions, no more than — 290 ×470 × 615 mm. Weight, not more than — 8 kg.

They are used for sampling natural and liquefied gas. In the company "Meta-chrome" you can buy the following gas samplers: PGO-50M; PGO-400; BDP 12-2-9,8 (aluminum, subcompact); PU. The PGO-50 M, PGO-400 and PU models are used to take samples of liquefied hydrocarbon gases that are affected by the overpressure of stationary tanks and or their own vapors. Sampling is carried out according to GOST 14921-78. The BTP 12-2-9.8 device is used for sampling, storing and transporting samples of gases that are under pressure. The device is made of aluminum and is designed for a small liter. Sampling is carried out according to GOST 31370-2008. INDICATOR BDP7 BDP7 BDP12 BDP12 BDP16 PGO-400 PGO-50M Volume, l. 0,7 1 2 4 10 0,4 0,05 Outer diameter, mm 70 70 120 120 160 50 35 Length, mm 360 480 368 593 800 400 325 Working pressure, MPa 9.8 5.0 9.0 The number of refills up to the operating pressure, times at least 5000 Case material AMg6M 12X18

The reverse purge valve is a 4-way valve designed to change the direction of the flow of the eluent through the nozzle column and blow off heavy components from the beginning of the column in the opposite direction into the detector. The crane is attached to the bottom panel (bottom) of the module, while taking the temperature of the column thermostat. The two upper fittings (see Fig.) are used to connect the column, the other two are connected to the evaporator and the detector.

Partially universal detector. It is used for the analysis of most organic compounds, including aromatic and aliphatic (except methane) hydrocarbons, heterocyclic compounds, phenols, phthalates, pesticides, amines, ketones, aldehydes, esters, mercaptans. It does not register compounds whose ionization threshold is higher than 10.2 eV (for example, acetonitrile, methanol). Technical characteristic: 5.0*10`13 g/s for benzene

The separation of some substances (the classic case is the separation of oxygen and argon) requires negative temperatures of the thermostat of chromatographic columns. technical specifications The lower temperature limit of the thermostat of columns with a cooling device based on an air conditioner is minus 5 °C. The error in maintaining the temperature of the thermostat of columns with a cooling device based on an air conditioner is + 0.05 °C. The power consumption of the cooling device based on an air conditioner, no more than — 640 VA. Overall dimensions of the cooling device based on the air conditioner, (width × depth × height), no more than — 620×480× 410 mm. The weight of the cooling device based on the air conditioner, no more than 32 kg. The lower limit of the temperature of the thermostat of columns with a liquid nitrogen cryoclap is minus 100 °C. The error of maintaining the temperature of the thermostat of columns with a liquid nitrogen cryoclave (in the temperature range less than 25 °C) + 0.1 °C. The power consumption of a cooling device with a liquid nitrogen cryoclave, no more than — 10 VA. Consumption of liquid nitrogen, not more than 0.1 l/h.

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)

When analyzing gases dissolved in transformer oil using the ARP method (equilibrium vapor analysis), it is necessary to first fill a syringe with transformer oil with a carrier gas, and then, after achieving an equilibrium distribution of gases dissolved in oil between the liquid and gas phases, introduce the gas phase into the chromatograph (blow out the doses of the chromatograph dispenser tap). Moreover, the operations of filling the syringe and entering the sample are performed without air access. When filling the syringe, it is possible to fix the syringe stem at a certain volume. technical specifications The volume of syringes is 20 or 50 ml. The pressure at the outlet of the syringe filling line with argon is 0.5 atm. The range of ratios of volumes of the gas phase and oil (Vg/Vm) is from 0 to 1.5.

The pyrolytic gas chromatography method is widely used in the study of polymer materials, plastics, rubbers, rubbers, paints and other high-molecular compounds of natural and artificial origin. The method is based on thermal decomposition of sample samples in an inert medium (without oxygen access), followed by chromatographic separation and analysis of the formed volatile compounds. Thus, the resulting pyrogram allows us to judge the composition of the original sample. Pyrolysis is also used in geochemical studies. Technical specifications The volume of the capsule is 56 ml. Pyrolysis temperature — from 200 to 1000 °C. The error of maintaining the temperature is not more than 1.0 ° C. The heating time of the sample to the pyrolysis temperature is no more than 2 seconds. The cooling time of the capsule when moving from the hot zone to the cold zone after pyrolysis is no more than 10 seconds. The time of continuous operation in the pyrolysis mode is no more than 60 seconds. Electric power supply from the AC network with voltage (220index) V, frequency (50 ± 1) Hz. Power consumption — no more than 100 VA. Overall dimensions of the control unit (width ×depth×height) — 210×190×100 mm. Overall dimensions of the input node (width× depth×height) — 90×135×160 mm. The weight of the control unit is not more than 2.5 kg. The weight of the input node is not more than 0.9 kg.

When analyzing gases dissolved in transformer oil using the ARP method (equilibrium vapor analysis), mixing of the contents of the syringe with oil is used to accelerate the extraction of gases (to achieve an equilibrium distribution of gases dissolved in oil between the liquid and gas phases). For this purpose, as well as automation of the mixing process, a special autonomous device for achieving equilibrium is produced. technical specifications The rotation speed of the syringe drum is 30 rpm./min. The rotation time (determined by the internal timer, after pressing the "Start" button) is 10 minutes. The number of syringes placed is 4. The volume of syringes is 20 or 50 ml. Power consumption, no more than — 14 VA. Overall dimensions, no more than 210×280×270 mm. Weight, not more than — 5 kg.

The TDS-3 includes a heating column with a sorption tube, which is installed on the evaporator of the chromatograph and a control unit located on a special bracket on the right side panel of the chromatograph Technical characteristics of TDS-3 Desorption temperature (column heating), 0C to 400 Heating speed, 0C/min at least 500 The cooling time when moving to a cold zone is no more than 10 seconds. Cooling time from 300 0C to 50 0C, min. no more than 10 Continuous operation mode Power consumption, W not more than 250 Dimensions of the sorption tube, (Ø, length), mm. Material glass, stainless steel 5/110, 5/114, 6/115, 6.35/89 Electric power supply from 187 to 242 V, 50 Hz. The display of the measured temperature and the setting of the temperature on the display is The discreteness of setting the desorption temperature, 0C 0.1

The flow regulator consists of the following parts: Body. It includes a connector for connection to the control controller and fittings for connecting the input and output gas lines. Calorimetric converter. Due to the heating of the gas along the flow section, the temperature difference is determined. The actuator (solenoid valve). The control board. A system of elements responsible for converting the signals that the user submits. TECHNICAL CHARACTERISTICS OF RD The gas pressure at the inlet is (0.4 + 0.04) MPa. Ranges of working gas flow rates — from 5 to 800 ml/min. The ability to specify the type of gas (nitrogen, helium, hydrogen, argon, air). Pressure ranges — from 0.001 to 0.40 MPa with a discreteness of 0.0001 MPa. The deviation of the carrier gas flow rate from the average value is + 1.5% in the flow range from 50 to 100 ml/min and + 0.5 ml/min in the flow range from 3 to 50 ml/min. Relative deviation of the average steady-state gas flow rate from the set value in the range from 3 to 100 ml/min: + 2.5%, but not less than 0.5 ml/min; from 100 to 200 ml/min.: + 5%; from 200 to 800 ml/min.: + 10%. The gas pressure at the inlet is (0.4 + 0.04) MPa. The deviation of the regulated output pressure of the regulator from the set value is not more than 1%.

Biotechno pilot fermenters have a fully aseptic design and are easily validated. The universal C-Bio control system, unified for fermenters of any volume, greatly simplifies the scaling process and allows you to transfer fermentation data to larger fermenters. The total volume is 15-50 liters Working volume 10.5-35.0 l Material of manufacture: 316L stainless steel (for parts in contact with the product) Stainless steel grade 304L (for parts not in contact with the product) Design pressure 3.0 kg/cm3 (capacity) 4.0 kg/cm3 (jacket) Design temperature 143°C (capacity) 151°C (shirt) Surface treatment Internal polishing 0.4 µm + electropolishing External polishing 1.2 µm Ports on capacity Upper Port for diaphragm pressure gauge Port for diaphragm pressure transmitter Bursting membrane Exhaust gas outlet and condenser Inoculation Viewing window Foam sensor port Nozzle for CIP Spare port Upper side walls Air supply Viewing window Culture liquid supply x 3 Ring Bubbler Spare port Lower side walls Port for PT100 temperature resistor sensor Port for pH sensor Port for dissolved oxygen sensor Spare port Sampling port Shirt Steam supply / outlet of the cooled water Steam output / Cold water supply (including safety valve and pressure gauge) Low drain valve 2. Mixing mechanism Top drive with single mechanical seal 0.25 kW DC motor Speed 30-600 rpm (inverter control) Val – F20 Adjustable three-level paddle stirrers 3 welded partitions 3. Aeration mechanism Automatic air supply 2 VVM 5" high-efficiency 0.2 µm filter and 316L stainless steel filter housing Automatic Air flow meter 4. Pressure mechanism The bursting disc Pressure gauge Positioner Pressure sensor Pressure control valve 5. pH/DO control mechanism pH sensor pH Sensor Holder Cable for pH sensor DO sensor DO Sensor Holder Cable for the DO sensor Peristaltic pump (fixed 20 rpm) x 2 Bottle 1 l x 2 6. Defoaming mechanism Defoaming sensor Cable for defoaming sensor Peristaltic pump (fixed 20 rpm) x 1 1 L x 1 bottle 7. Temperature control mechanism Temperature sensor (PT 100) Heat exchanger Pump 8. Strapping and frame Support Corners and channels – STS304 Manufactured strapping Air supply Supply of process steam Supply of pure steam Cooling water supply Return of cooling water Drain of waste water Drain of waste liquids Exhaust gas output Instrumentation Diaphragm valve Direct flow valve Steam trap Membrane pressure gauge Ball valve and pneumatic angle valve Check valve Safety valve Crankshaft, tee Welding of pipes Orbital welding (line in contact with the product) Manual welding (common line)