Pesticide residue detection by gas chromatography

◆ Clear display screen at a glance

●GC1120Pesticide residue detection by gas chromatographyLarge screen display for Chinese menu style dialogue. Simultaneously display the set and actual temperature values of the column box, sampler, detector, etc. on one screen.

◆micro-computer system

Microcomputer temperature control system, temperature control accuracy ± 0.05 ℃; It has 6 independent temperature control zones, with a temperature of up to 400 ℃; Equipped with extreme temperature setting and over temperature protection function.

● Full Chinese keyboard setting control and usage parameters (including detector operation parameters); The instrument has functions such as self diagnosis, power-off protection, detector setting, range, polarity, and current setting and display.

◆column oven

Within 10 minutes, the high-capacity column box can accommodate both capillary columns and double packed columns simultaneously; The column box has an automatic rear door opening mechanism for heating and cooling (● 300 ℃ to 50 ℃, which can automatically adjust the opening angle according to temperature changes), and the column box has a 10 step 11 platform programmed heating.

◆Double stable gas path

The air flow path adopts a dual stability design of stabilizing valve and stabilizing flow valve; The air and hydrogen flow paths adopt a stable regulation mode of stabilizing valve and needle valve, and both the stabilizing valve and needle valve use digital scale knobs

◆Flexible injection system

●The instrument can be installed with up to three injectors at the same time. According to analysis requirements, the best injector combination can be selected, and each unit can be independently temperature controlled. The injector is easy to disassemble and assemble.

Single packed column/double packed column sampler (PIP).

● It can achieve filling column head injection method and is suitable for various chromatographic columns; Add a six way valve for gas injection analysis; By using connectors in the packed column sampler, it is easy to perform analysis on a 0.53 wide bore capillary column.

Single capillary column/dual capillary column sampler (SPL).

Capillary column sampler, equipped with diaphragm blowing and back pressure valve diversion adjustment, suitable for capillary columns of different specifications.

◆ Detector

●GC1120Pesticide residue detection by gas chromatographyUp to three detectors can be installed simultaneously, such as FID, TCD, ECD detectors, etc.

Using different combinations according to different analysis applications can facilitate the series and parallel operation of detectors.

The FID detector allows for easy disassembly and cleaning of the nozzle and ion collection components.

HTCD uses high resistance rhenium tungsten wire with a sensitivity of 10000mV · mL/mg.

Modulation pulse type ECD constant current source, with sensitivity and current selection computerized.

◆Built in data acquisition system

The built-in acquisition device can collect instrument control status and chromatographic output signals, enabling real-time control and data processing of the instrument by connecting to an external computer through a communication cable.

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

Data processing includes dual channel (expandable to multiple channels) chromatographic data acquisition, automatic or manual setting of integration parameters, up to 5 quantitative methods, baseline deduction, report preparation, and other functions.

Anti control chromatography workstation (audit trail version)