Description
Highly effective liquid chromatographs of the LC-1000 series with completely automated management by means of the digital computer is the last latest development. This tool uses the latest electronic technologies that allows to control completely all operations in each LC-1000 VEZhH module of system and to carry out the isolated analysis, the gradient analysis of a high pressure, scanning of lengths of waves, scanning of a range and others.
Main characteristics:
The system of a liquid chromatography is completely automated by a digital intellectual control system by means of the computer
In parallel the connected pumps with the piston compressor a double plunger that improves stability, reliability of system and prolongs service life.
The updated design, and also convenience and usability allows the user to receive highly effective results
Each indicator and parameter of the device is qualitatively new corresponds to the level of popular tools abroad.
The system of an optical way accepts accurate structure of positioning and technology of thermal insulation of installation that guarantees high precision, insignificant deviations and the short period of stabilization.
The used modules and components are made at the leading world factories.
Pump LC-1000
The piston pump with parallel connection of double plungers and intellectual control of the microprocessor has the high working pressure, the reduced pulsation, stability of work, convenience of operation and some other functions.
All mechanical components of pumps are projected by means of the advanced computer technologies. All key modules it is made in the modern world processing centers. Thus, on the basis of the highest accuracy of processing and after strict tests under pressure of each pump, we can guarantee that our pumps will never be had by a possibility of leak!
the product possesses automatic function of monitoring of process. The microprocessor controls the stream going via the pump in real time and provides the actual control of perfuzionny pressure. As soon as pressure exceeds a limit, the pump will give an alarm signal and will automatically stop work.
At control of the pump, switching of various operating modes pressing of four function keys, according to instructions on the display of the device is possible. There is a possibility of installation and control of a stream, maximum / minimum limits of pressure, operating time, specific pressure and some other of parameters, also connected among themselves.
The improved structure and design of the pump: all structure accepts a modular design that allows to carry out independent assembly / dismantling of different mechanical parts and parts of the scheme that is very convenient for search of malfunctions and replacement of the failed parts.
the pump is operated a chip under control of the microprocessor which controls the step engine which operates permanent job of the pump, reduces noise and increases the admissible range of regulation of speed. Thus the product can satisfy requirement as the routine analysis and the microanalysis of a stream well.
It has process monitoring function. The microprocessor carries out in real time control of an expense and postoyannsq control for actual value of perfuzionny pressure. In case of excess of extreme value of pressure, the pump will give an alarm signal and will automatically stop operation of the pump.
Technical characteristics of the pump
range of management of a stream: 0,001 ~ 9,999 ml/min., regulation of an expense on length of a step of 0.001 ml/min.
Error of the established value: <± 2%.
Error of stability of a stream of SR: <0,3%
Peak of working pressure: 42 MPas (0,001 ~ 9.999 ml/min.)
Linearity and accuracy of pressure: the display error pressure makes less ± 0.5Mpa (0 ~ 42 MPas).
Pressure pulsation: less than 0,1 MPas (stream: 1ml/mines, Pressure: 5 ~ 10 MPas)
Tightness of pumps: pressure (42 MPas), duration of working hours (l0 mines), pressure drop (less than 0,5 MPas)
Dimensions: 450x300xl60 mm (length x width x height)
LC-1000 UF detector
Thanks to innovative system with the digital switch, the detector directly transmits a digital signal to the WS1000 workstation that allows to avoid distortions of a signal and hindrances that occurs very often in obchny UV detectors during the mnogozhestvenny analog-digital transformations of signals from the chromatograph.
thanks to excellent design of a flowing cell, the detector considerably surpasses detectors of ultra-violet radiation almost in all respects.
the system of an optical way realizes accurate structure of positioning with high precision and a small deviation. The Deyteriyevy lamp and optical system technologies are created with use heat-insulating that reduces time of stabilization and minimizes negative impact from a deyteriyevy lamp.
preamplifier the amplifier of the tool with a high resistance and a low deviation, and A/D uses the switchboard of a high definition. Depending on the general uloviya of the analysis, its dynamic range can reach 106 that provides the accuracy of logarithmic calculations.
Technical characteristics uf detector
Range of lengths of waves: 190-600 nanometers
Basic level noise: ≤ 5 × 1 0-5AU Peak peak value (methyl alcohol, 1 ML/min., 254 nanometers, 20 C)
Basic level of noise: ≤ ± 0,25 × 1 0-5AU (empty cell, response time: 1 second, 20 c)
Basic amplitude: ≤ 5 × 1 0-4AU/hr (methyl alcohol, LML/mines, 254 nanometers, 20 C)
Basic amplitude: ≤ 0,4 × 1 0-4AU (empty cell, response time: 1 the second, 20 C)
limit of the minimum detection: ≤ 2 × 1 0-8 g/ml (naphthalene / methyl alcohol of solvent)
error of value of a wave: ≤ ± 2 nanometers
Repeatability of a wave: more 0.2nm
range strip width: 8 nanometers
Linearity of range: more than 104
WS1000 workstation
The hromatografichesky station with the software provides to WSl000 completely automated integration of the UV detector and pump of a high pressure with a constant stream, and also provides to the user powerful functions of management and the simple interface convenient for work. The software uses completely automated a digital control system that considerably simplifies process of work and increases testing accuracy. The software generally consists of two main functional modules, namely: LC-1000 of the module of management of the liquid chromatograph and hromato-module of data processing. Powerful function of management allows to control each module of the tool, at the same time in the graphic interface of the user the program makes the qualitative analysis, the multielement gradient analysis of a high pressure, scanning in lengths of waves, scanning of the chromatograph, switching of the relay on an event, etc. display curve quantities of a stream, curve scannings of lengths of waves etc., from several sets of pumps at a time.
Six types of quantitative algorithmic methods are realized: normalization, the checked normalization with proportionality coefficient, a method of the internal standard, and also vneshniv by a standard method and by method of calculation of an index.
Calibration operation:
Calibration on several standard samples and various concentration is carried out and the calibration curve on real concentration of a sample and the area of peak is created. Flexibility and convenience of addition and removal of peak: identification and processing of peak of the chromatograph through change of parameters of peak program or manual by methods.
Saving spectrograms: the quantitative method of calculation of parameters of removal of peak and identification of peak, etc., can be kept in the file under the name the specified user.
Functionality:
Enter the transformation period, concentration of a dosage, and the device realizes operation of a gradient during the operation of several pumps.
Start / switching off of LC-1000 of the pump: to establish an initial stream, pressure unit of measure, the top and lower limits of pressure.
Setup of the UV detector: Deyteriyevy lamp of inclusion / switching off,
Operating time filtration: control of a wave and business hours of a deyteriyevy lamp, etc.
The tool uses the temporary relay for control and programming of time and term of realization all wishing to the user functions to switch, for example, the transformation valve for office of a secondary phase. These functions are not realized in other popular workstations now.
The user can execute scanning in lengths of waves in the analysis according to the actual requirement.
It can display in real time an expense and pressure of each pump.
Gradient spectral analysis:
The user it is necessary to enter quantity of a stream of various mobile phases and appropriate time of transformations to the file of the list then it can easily and precisely realize the gradient analysis. Besides, the software also provides the corresponding curve of size of a stream of the pump to help the user conveniently to calibrate parameters of a gradient and it is better to understand the testing operation course.
Scanning of a range of lengths of waves during the analysis of tests during sample injections, the user can stop the pump and execute scanning in concrete requirements and parameters. This operation can fully help the user to measure various absorbing parameters of a sample on various lengths of UV of waves, respectively, so the user can choose the corresponding correct wavelength of detection of various samples and achieve the best results of the analysis.
Scanning of a range:
To check a deyteriyevy lamp, the software with function of scanning of a range is created. First, the user can visually determine deuterium lamp brightness with various lengths of waves and judge by result about need of replacement of a deyteriyevy lamp. Secondly, the user can judge wavelength accuracy on 2 points, namely 486 nanometers and 656 nanometers, in a range.
Comparison of ranges of the workstation:
By comparison of curve ranges of various samples on one schedule, the user can visually estimate repeatability and intensity of peaks of samples that will give additional information for carrying out the qualitative analysis by the expert.
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Liquid LC1000 HPLC chromatograph
