DRK-GC1120 gas chromatograph

Product Features:

A simple and clear display

The large screen display enables the menu dialogue in English to make the display more clear and easier to operate. It can display the range rise curve and the base flow level (need to configure the acquisition board), and display the temperature setting values and actual values of the column box, the injector, the detector and so on in the one screen picture, and can provide more colorful instrument information.

Advanced microcomputer system, excellent control function

1. The microcomputer temperature control system with excellent performance has adopted advanced international manufacturing technology, which has high temperature control precision (superior ±0.05 ℃), high reliability and strong anti-interference ability; it has 6 independent temperature control zones, the highest control temperature reaches 400 ℃, the limit temperature setting and the overtemperature protection function to ensure the safety of the instrument. That’s ok.

2. All kinds of control and use parameters (including detector operating parameters) are set in the Chinese keyboard. It is logical and easy to operate. The instrument has the functions of self diagnosis, power failure protection, detector setting, range, polarity and current setting and display, which can accurately display the set values, actual values, retention and analysis of each road temperature control. Between.

High performance and large capacity column box

The large capacity column box can hold the capillary column and the double filled column at the same time; the column box has rapid heating and rapid cooling, that is, the automatic back door mechanism (10min from less than 300 ℃ to 50 ℃, can automatically adjust the door angle according to the temperature change), and can realize the quasi room temperature control. The column box has a 10 order 11 platform heating program. Control software support).

High precision double stable gas path

The steady pressure valve and steady flow valve are used to design the stable pressure valve and the steady flow valve. The steady regulation mode of the pressure valve plus needle valve, the steady flow valve and the needle valve are both digital scale knobs, which have high precision, good repeatability, high reliability and convenient and direct flow regulation.

Flexible sampling system to meet various analysis requirements

The instrument can be installed as many as three injector at the same time. According to the analysis requirements, the best injector combination can be selected, and the unit can control the temperature independently, and the sampling device is easy to disassemble and disassemble.

Single filled column / double filled column sampler (PIP):

It can be applied to the column head injection mode, and a variety of chromatographic columns are applied, six way valve is added to analyze the gas injection, and the 0.53 wide bore capillary column analysis can be easily completed by using the connector in the filling column injector.

Single capillary column / double capillary column sampler (SPL):

The special capillary column sampler has diaphragm blowing and back pressure valve shunting adjustment, and is suitable for capillary columns of various specifications.

High sensitivity and high stability detector

The instrument can install up to three detectors at the same time, such as FID, TCD, ECD detector and so on.

According to different analysis and application, different combinations can be used to realize the series and parallel operation of detectors conveniently.

The new type of FID has a lower detection limit, which can facilitate the disassembly and cleaning of the nozzle and ion collection components. The precise fixed emitter installation structure ensures the high consistency of the performance of each instrument.

The unique air insulation structure makes TCD more stable.

The high sensitivity HTCD uses high resistance rhenium tungsten wire and the sensitivity is up to 10000mV. ML/mg.

Modulation pulse ECD constant current source, sensitivity and current selection Microcomputerization.

A new built-in collection system

The advanced built-in acquisition device can collect the control state of the instrument and the output signal of the chromatogram. It can connect the external computer with a communication line, and carry out the real-time control and data processing of the instrument. (need to configure the counter control software and the acquisition board)

Real time control includes various functions such as temperature control, detector selection and setting, programmed temperature control, temperature programmed curve tracking, and flow rate display.

Data processing includes the functions of high speed acquisition, automatic or manual integration parameters, up to 5 quantitative methods, base line deductions, and report compilation.

Technical Parameter

temperature control

Temperature range: 7℃~400℃ at room temperature (increment 1℃).

Temperature control objects: column box, front and rear detector, front and back injector, auxiliary, 6 roads.

Order of ascending order: Ten order

Cheng Sheng rate: 0.1℃~40℃/min (increment 0.1℃)

Constant temperature time: 0~655min (increment 1min)

Hydrogen flame ionization detector (FID)

Sensitivity: M≤8×10-12g/s sample C16

The best test results: M≤3×10-12g/s sample C16

Noise: ≤5×10-14A

Drift: ≤6×10-13A/h

Linear range: ≥106

Thermal conduction pool detector (TCD)

Sensitivity: ≥5000mV﹒mL/mg sample C16

Noise: ≤20µV

Drift: ≤30µV/h

Linear range: ≥104

High sensitivity heat conduction pool detector (HTCD)

Sensitivity: ≥10000mV﹒mL/mg  sample C16

Electron capture detector (ECD)

Detection limit: ≤2×10-13g/s   sample γ-666

Linear range: ≥103

Maximum use temperature: 350℃

Flame photometric detector (FPD)

Limit of detection: P: Dt ≤8×10-13g/s (phosphorus in methyl parathion).

Sulfur: Dt ≤8×10-11g/s (sulfur in methyl parathion)

Nitrogen and phosphorus detector (NPD)

Limit of detection: ≤5×10-12g/s（N）sample: azobenzene.

≤5×10-13g/s（P）sample: malathion

Full counter control chromatography workstation

The software fully complies with the national standard of “GB/T 25478-2010 chromatographic data workstation”.

The maximum processing of 4 channel chromatographic signals

Internal leading, international advanced intelligent peak identification and real-time integration module, automatic identification of solvent peak, (front / back) tail peak, front peak, shoulder peak, negative peak and other complex peaks, showing high detection precision and qualitative / quantitative repeatability.

The standard and open data interface can import and export the CDF files that conform to the ASTM/AIA specification, and support the data interface with the fingerprint spectrum software.

Multiple external event cards and 4 to 20mA signal output modules can be selected to realize multi line online gas automatic analysis and connect with industrial DCS system.

A special version (or module) of optional liquor analysis, calorific value analysis, natural gas analysis, TVOC analysis, transformer oil analysis, coal gas analysis, amino acid analysis and so on.

The software has audit tracking function, which is in line with the requirements of GMP regulations.