Product Details

Introduction

The GI-4000-02 ion chromatograph is widely used by our company for laboratories, urban water supply systems, disease prevention and control systems, environmental protection systems, and laboratories of major factories and mines. This instrument has the characteristics of simple operation and convenient maintenance. The program-controlled double-piston pump with large-capacity pressure buffer, intelligent bipolar pulse conductivity detector, membrane column composite electrochemical suppressor with electrochemical automatic regeneration function, and the corresponding chromatographic data processing system ensure the instrument Reliable performance and excellent quality

Technical parameters of ion chromatography:

Performance indicators: Detection limit: ≤ 1ppb (in terms of Cl-, using concentration can achieve 0.1 ppb)

Baseline drift: ≤ ± 1% / hour

Reproducibility: better than 2% (based on SO42-)

Linear range: greater than 102

Double plunger programmable advection pump:

Flow range: 0.01-9.99ml/min

Flow stability: ±1%

Pressure fluctuation: ±1%

Maximum working pressure: 45Mpa

Separation column:

Seven anions were detected in 16 minutes: F-, Cl-, NO2-, PO43-, Br-, NO3-, SO42- (using a dedicated ion chromatography column: BrO3-, ClO2-, ClO3-)

Suppressor:

Membrane-column composite electric suppressor for continuous automatic regeneration

Integrated thermostatic high performance conductivity cell to eliminate dead volume

No regenerant

Detector:

Bipolar pulse conductivity detector Range: 0.01-1000uS

Model: desktop, one machine

Injection method: semi-automatic (with integrated 9-bit autosampler configuration available)

Second, the basic configuration:

1. Detector 1

2. Advection pump 1 unit

3. Oven (built-in chemical unit) 1 set

4. Full Chinese Chromatography Data Station 1 set

5. Anion column 1

6. Anion suppressor 1

7. Solution bottle 3 (500ml)

8. Anion standard 1 set (7)

9. Power cord 2

10. PTFE tube 3 meters (fine)

11. Tightening screws (4 large holes, 10 small holes, 4 pointed ends, 6 flat heads) 24

12. Card holder (4 large holes, 8 small holes) 12

13. Filter head 1

14. Power supply terminal block 1

15. Injection filter 5

16. Micro syringe 5

17. Tool 1 box

18. Instrument instruction manual (with factory certificate, warranty card) 1

19. Acceptance Outline 1 copy

20. Acceptance certificate 1 copy

21. Packing list 1 copy

The characteristics of the important components of ion chromatography:

main body:

GI-4000-02 ion chromatography is a building block structure, which is mainly composed of four parts: advection pump system, separation system, detection system and data processing system. Beautiful appearance and easy operation. Flexible installation, convenient transportation and easy maintenance

Advection pump system:

1. Microcomputer controlled programmable double plunger advection pump, with sapphire material and built-in high-capacity pressure buffer for accurate flow and stable flow rate. At the same time, 24 step current controller is used to minimize the pulse and make the instrument more Stable and less noisy;

2. The flow rate is set to 0.01~9.99ml/min, and the increment is 0.01~9.99ml/min;

3. The parameters are set by the panel touch keyboard. The flow and pressure can be displayed by digital. The hand feels comfortable, the reflection is sensitive, the use is long, and it is not easy to cause mechanical failure such as poor contact;

4. Each interface in the pump is sealed reliably, and it can work normally for a long time at maximum pressure without leakage.

5. The pump is equipped with a safety pressure protection device, which can arbitrarily set the protection pressure to avoid damage to the column and other components due to excessive pressure;

6. The advection pump also has a serial communication interface that can receive external signals to counter control the pump.

Separation system:

1. The suppressor in the instrument is the company's patented product. The membrane column is combined with the automatic regenerative electrochemical suppressor. At the same time, the combination of the conductivity cell and the suppressor is designed to reduce the dead volume and make the detection result more accurate. The sample valve is designed independently and is easy to install and replace.

2. Each interface of the flow path adopts the integrated connection mode of “O-ring” and “card sleeve” to ensure reliable sealing and no leakage, and the flow rate between the parts is uniform, the dead volume is small, and the pressure resistance is high.

3. The core part of ion chromatography-ion chromatography column, the anion separation column of the instrument adopts the company's TE anion separation column, which has high specificity and good separation effect. The cation separation column can separate monovalent cations and divalent cations at one time. In actual application, there is no obvious difference with foreign products. In terms of separation component and component separation, column efficiency and recovery rate, it can fully meet the requirements of various aspects. Compared with foreign products, it is durable in performance and price. Other aspects have an absolute advantage.

4. In the elimination of background conductance, the company's patented product, membrane column combined with automatic regenerative electrochemical suppressor, is currently the world's leading technology, improving the suppressor's ability to suppress, increasing the suppression capacity, greatly extending The life of the suppressor.

Detector:

1. All setting working modes and usage parameters are modified by E2ROM, and the parameters are saved permanently. The operation is very convenient. Simply press a button to complete the whole operation process;

2. The test temperature is automatically compensated, and the background is automatically compensated, that is, the redundant external equipment is omitted, and the accuracy and stability of the instrument are improved.

3. Detector signal-to-noise ratio, high sensitivity, minimum range of 0.01uS, with 0.01uS--1000uS nine range files, so the measurement range is wide, can detect very low signal

Data processing system:

The full Chinese chromatography workstation developed by the company has the advantages of convenient operation, simple operation and not easy to crash. The chromatographic workstation has the functions of spectrum, timing display, spectrum shifting, working condition selection memory, etc. It automatically gives the analysis results and performs various corrections, with Chinese display, print spectrum, calibration curve, analysis results, etc. Equipped with electrodialysis automatic regeneration anion suppressor, it has the advantages of long life and stable operation. It can be used under 220V voltage, temperature is 5-40 °C, relative humidity is 5-85%, compared with other instruments. a wider range of features