Catalog
Back to search results
Liquid flask with adjustable thickness of the test liquid layer
Back to search results
Liquid flask with adjustable thickness of the test liquid layer
A liquid flask with an adjustable layer thickness of the liquid under study is made in the form of an optical-mechanical attachment installed in the cuvette compartment of the FT-801 spectrometer. It contains focusing optics, removable holders of two windows-substrates with a diameter of 10 mm and two adjusting screws placed on the upper panel of the console housing and designed to set the required gap between the windows.
A liquid of any degree of viscosity is pre-applied in the form of a small drop to the lower window and then, in the process of smooth convergence of the windows, evenly fills the gap between them. By rotating the adjusting screws and observing the transmission spectrum online, the user has the opportunity to set the desired thickness of the liquid layer, guided by the overall intensity of the entire spectrum or by the intensity of specific absorption bands. In the presence of calibration, which is easy to create using the ZaIR 3.5 program for several samples with a known concentration, the cuvette allows quantitative measurements. The flask is indispensable in the analysis of mixtures containing impurities in small proportions.
Technical specifications
Transmission in the operating range of the spectrum, % of the input signal at least 50
The recommended number of scans when registering spectra is 16
Time of spectrum registration at 16 scans (resolution 4 cm-1), sec 20
Minimum volume of the studied liquid, mm3 1
The diameter of the focus spot, mm 3
Overall dimensions, mm 200×90×160
Weight, kg 1,1
The figure shows several spectra of the viscous lubricant "Buxol", illustrating the process of selecting the thickness of the sample layer between the windows.
The measurement process has a high expressiveness and reproducibility, inexpensive replaceable substrate windows are used, the system is easy to configure and clean, a very small amount of sample is required to obtain high-quality spectra.
A liquid of any degree of viscosity is pre-applied in the form of a small drop to the lower window and then, in the process of smooth convergence of the windows, evenly fills the gap between them. By rotating the adjusting screws and observing the transmission spectrum online, the user has the opportunity to set the desired thickness of the liquid layer, guided by the overall intensity of the entire spectrum or by the intensity of specific absorption bands. In the presence of calibration, which is easy to create using the ZaIR 3.5 program for several samples with a known concentration, the cuvette allows quantitative measurements. The flask is indispensable in the analysis of mixtures containing impurities in small proportions.
Technical specifications
Transmission in the operating range of the spectrum, % of the input signal at least 50
The recommended number of scans when registering spectra is 16
Time of spectrum registration at 16 scans (resolution 4 cm-1), sec 20
Minimum volume of the studied liquid, mm3 1
The diameter of the focus spot, mm 3
Overall dimensions, mm 200×90×160
Weight, kg 1,1
The figure shows several spectra of the viscous lubricant "Buxol", illustrating the process of selecting the thickness of the sample layer between the windows.
The measurement process has a high expressiveness and reproducibility, inexpensive replaceable substrate windows are used, the system is easy to configure and clean, a very small amount of sample is required to obtain high-quality spectra.
Liquid collapsible cuvettes
They are used for the study of liquids, including solutions with low concentrations
• Have a collapsible design that allows you to use the supplied gaskets of different thicknesses
• Window material – ZnSe (it is possible to order windows from SiO2 and KBr)
• Gasket material – Teflon (fluoroplast)
• Thickness of gaskets – 0.022 mm, 0.1 mm, etc.
SIMEKS
Novosibirsk
Produced in: Novosibirsk
Single- and multi-pass gas cuvettes
Single- and multi-pass flask are used for qualitative and quantitative spectral analysis of gas mixtures. The use of multi-pass flask makes it possible to confidently detect extremely small concentrations of the components of the gas under study (less than ppm units).
• Three types of flask are supplied:
1. single-pass, having a stroke length of 100 mm, with a glass body and windows made of ZnSe, KBr, NaCl
2. multi-pass, with a beam stroke length of up to several tens of meters
3. multi-pass, with a beam stroke length of up to several tens of meters, equipped with a heating system of the working chamber up to 200 ° C and a thermal controller
Multi-pass cuvettes have a transparent working chamber made of quartz glass; mirrors with a gold (99.999) coating provide a reflection coefficient in the IR region of at least 98%; additionally, cuvettes can be equipped with pressure and temperature sensors, fittings for controlling gas flow, etc.
SIMEKS
Novosibirsk
Produced in: Novosibirsk
Photoionization (PID)
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
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
Thermal Conductivity Detector(accident)
It is used to determine hydrogen, oxygen, CO and combustible hydrocarbon gases, and its sensitivity to these compounds is higher than the sensitivity of an accident. The most widespread TCD was obtained for the analysis of hydrogen and oxygen, tk. its sensitivity to them is almost an order of magnitude higher than that of an accident. The principle of operation is based on fixing the thermal effect of catalytic combustion of the sample on the surface of the platinum filament.
Technical characteristic:
1.8*10`10 g/ml of hydrogen
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
Thermionic (TID)
Selective detector for organophosphorus and nitrogen compounds. It is also sensitive to compounds containing C, Az, but to a lesser extent. The sensitivity depends on the number of heteroatoms in the molecule. Selectivity to hydrocarbons is 104 for nitrogen, and 105 for phosphorus
Technical characteristic:
2.0*10-13 m/s nitrogen
1.5*10`14 g/s for phosphorus
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
Electronic Gripper (E3D)
Selective detector for organochlorine compounds and other halogens. It is also
sensitive to compounds containing oxygen, phosphorus or aromatic rings, but to a lesser extent. Paraffins and simple hydrocarbons almost do not capture electrons and are not registered. The selectivity to hydrocarbons is 108. It is available in two versions — conventional EDD and micro-EDD,
mainly for capillary columns (the second version is characterized by increased
sensitivity). The level of fluctuation noise is up to 300 MV, the maximum signal is up to 5 V, the design of the ECD allows the use of argon, helium, and hydrogen as a carrier gas, in addition to nitrogen.
Technical characteristic:
4.0*10-15 g/s for lindane
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
THERMAL DESORBER TDS-2
TDS-2 is a syringe (see Fig. 1), which is installed on the evaporator of the chromatograph. The device is equipped with a crane that cuts off the carrier gas line when removing the rod with the sorption tube from the thermal desorber. When the tap is open, the stem is lowered to the lower position and the sorption tube is inserted into the evaporator brought to the desired temperature. In the conditions of the upper position of the rod, it is also possible to displace air by purging the sorption tube with a carrier gas.
Technical characteristics of TDS-2
The heating time to the desorption temperature is no more than 1 sec.
The cooling time when moving to a cold zone is no more than 10 seconds.
Outer diameter 5-0.1 mm
Dimensions of the sorbent chamber: diameter 3.4+0.3 mm
length 52 mm (470 µl)
Volume (for solid samples) 90 µl
Operating temperature ranges* from 50° to 400 °C
Overall dimensions (height with the rod fully extended) 320 mm.
Weight 0.325 kg.
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
Flame Photometric(FD)
Selective detector for phosphorus and organosulphide compounds. It is used mainly for the analysis of sulfur-containing substances (hydrogen sulfide, mercaptans, thiophenes, etc.). The sensitivity for sulfur reaches 0.1. ppm. In addition, PFD has sufficient sensitivity and selectivity to compounds containing nitrogen, boron, tin, chromium, selenium, germanium, as well as CO, POPS, MgOx, $02, Ma, NOT C52. The selectivity of 5-containing compounds to hydrocarbons is 105.
Technical characteristic:
8,0*10-13 g5/s by sulfur
1.0*10`13 g/s for phosphorus
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
METERING VALVE FOR GAS SAMPLES
The metering valve for the introduction of gas samples is designed for the introduction of gas under excessive pressure into the chromatograph. Cranes differ in the number of moves (4, 6, 8, 10, 12) and have two provisions "Selection" — "Analysis". In addition to dosing, cranes can be used to switch chromatographic columns, elements of gas circuits, etc. The tap can be installed either on the side panel of the chromatograph, or directly into the analytical module instead of, or together with the evaporator of the chromatograph, while it is used as a back-purge tap or for hot sample entry. Additionally, the tap for hot entry can be equipped with heated pipelines.
technical specifications
The dose volume is from 0.25 to 5.0 ml (at the request of the consumer, the dose volume can be increased to 10 ml and reduced to 0.1 ml).
The maximum temperature of the tap is no more than 160 °C.
The pressure in the crane line is not more than 0.48 MPa.
The angle of rotation of the crane handle — depending on the number of strokes.
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
TWO-STAGE THERMAL DESORBER TDS-4
The composition of the TDS-4 includes the thermal desorber itself (the thermostat of the sorption tube, a cryolovushka, an automatic switching valve, a touch control panel), a heated transition line that is installed in the evaporator\
Technical characteristics of TDS-4
Temperature of thermal desorption, 0C to 400
The heating rate of the sorption tube, 0C/min up to 500
Trap temperature, 0C from minus 25 to 400
Trap heating speed, 0C to 2000
The method of heating the trap is direct
Tap heating temperature, 0C to 250
Transition line heating temperature, 0C to 250
Continuous operation mode
Dimensions of the sorption tube, (diameter; length), mm.
Material glass, stainless steel 5/114 (on request 6/115, 6,3/89 and their combinations)
Tube material glass or stainless steel (SS316)
Method of trap cooling without using liquid refrigerant
The number of regulated gas flows is not less than 2
There is an automatic leak test function
There is a function of automatic purging of the sorption tube
Electric power supply from 187 to 242 V, 50 Hz
Power consumption, W not more than 700
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
REVERSE PURGE VALVE
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.
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
Chromatographic columns for HPLC
1 supp.
Variants of execution: - silica gel with grafted octadecyl groups (C18, RP, ODS) - for the variant of reversed-phase HPLC (OF HPLC);
- unmodified silica gel (SIL) – for normal-phase HPLC (NF HPLC).
Lumeks
Saint Petersburg
Produced in: Saint Petersburg
LIQUEFIED GAS METERING VALVE
The metering valve for the analysis of liquefied gas (KDSG) is designed for the introduction of liquefied gas or other liquid under excessive pressure into the evaporator of the chromatograph. KDSG is a 4-way crane, in which a dose of a certain volume is installed. The tap is installed on the evaporator of the chromatograph. A dose of any volume can be installed on the tap. Dose change can be performed by the operator. The amount of the dose volume is indicated on the tag.
Technical specifications
The dose volume is from 0.25 to 4.0 µl (at the request of the consumer, the dose volume can be increased up to 10 µl).
The tap temperature is no more than 150 °C.
The pressure in the crane line is not more than 0.48 MPa.
The angle of rotation of the crane handle is 90 °C.
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
SPEAKER SWITCHING DEVICES
To switch the nozzle columns, conventional taps (reverse purge, 6-, 8- and 10-port) are used, which, however, are not suitable for switching capillary columns. An alternative way to switch capillary columns is to change the flows in the capillary columns, which is produced by the so-called "Dins switches" (PD).
TECHNICAL CHARACTERISTICS of PD
The switching time setting range is from 0.1 to 999 min.
Switching time is 0.1 s.
The dead volume of the crane is less than 1 µl.
The temperature of the tap is no more than 350 °C.
The pressure in the crane line is not more than 0.4 MPa.
Electric power supply — 5 V.
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
THERMAL DESORBER TDS-3
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
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El
Mold for the manufacture of tablets with KBr diameter of 13 mm
It is intended for the preparation of samples in the form of compressed tablets consisting of the test substance in a mixture with microcrystalline potassium bromide (KBr). The mold is used in combination with the hydraulic press GP 200-13.
- the mold is made of high-quality alloy hardened steel
- to obtain better compressed tablets with KBr, the mold can be pumped out using a pre-vacuum pump. The customer can purchase the pump independently, or order it from the NPF “SIMEX”. Pumping out the mold is not necessary for most studies.
- the kit includes a special dispenser for placing the optimal amount of the pressed mixture in the mold
- to install the finished samples in the spectrometer, a holder of KBr tablets and D13mm substrate windows is used
SIMEKS
Novosibirsk
Produced in: Novosibirsk
COOLING LPG SV
Device for dosing of liquefied gases is made for insertion of liquids and liquefied gases under the pressure of 7 MPa into the chromatograph. Injection of liquefied gas without de-gassing is provided by cooling of valve, and it greatly reduces inaccuracy of the analysis results.
Cooling temperature is set by temperature regulator. Visual control of absence of de-gassing and flow control of the analyzed fluid is provided. Dose volume is form 0.2 to 2 mcl. Valve of VICI production or dispenser valve of our own production is used directly as a sample-valve.
NPF "META-KHROM"
Yoshkar-Ola
Produced in: Yoshkar-Ola, Mari El