According to GB/T 16886.7-2015 Biological Evaluation of Medical Devices - Part 7: Detection of Cyclohexane Sterilization Residues - Gas Chromatography Headspace Method, Shenzhen Depu Instrument specializes in producing gas chromatographs, headspace samplers, and complete equipment, providing testing methods, analyzing problems, and answering instrument failures to fully support users who need them.

Product overview

GC-7680 gas chromatograph is a new generation of network laboratory gas chromatograph launched by Shenzhen Depu Instrument Co., Ltd. Adhering to the advantages of domestic instruments, Depu company carries out technological innovation and comprehensively upgrades its products. Functional use: first-class medical device ethylene oxide sterilization residue detection.

This instrument adopts microcomputer control system and Chinese large screen display, which makes the appearance more beautiful and smooth. The newly designed keyboard keys are simple and fast, and the circuits are all imported components, so that the instrument has stable performance and high reliability.

Performance characteristics

First, the circuit integration is high, high precision, multi-functional

1. Fully microcomputerized button operation, 5.7-inch (320*240) large-screen LCD Chinese and English display, Chinese and English display can be switched freely, to meet the operation requirements of different groups of people, man-machine dialogue mode, easy to operate.

2. The microcomputer-controlled hydrogen flame detector realizes the automatic ignition function and is more intelligent. New integrated digital electronic circuit, high control accuracy, stable and reliable performance, up to 0.01 °C temperature control accuracy.

3. Gas break protection function, protect the column, thermal conductivity cell, electronic capture detector.

4. It has the function of boot-up self-diagnosis, so that the user can quickly know the cause and part of the instrument failure, stopwatch function (convenient flow measurement), power failure storage protection function, anti-power sudden interference function, networked data communication and remote control function. Overtemperature protection keeps the instrument safe from damage and features an advanced data memory system that eliminates the need for each reset.

Second, the unique design of the injection system can obtain a lower detection limit

1. Unique sample inlet design to solve injection discrimination; The two-column compensation function not only solves the base drift caused by program heating, but also reduces the effect of background noise to obtain lower detection limits.

2. There is a filling column, capillary shunt/unsplit injection system (with diaphragm cleaning function)

3. Optional automatic/manual gas six-way injection valve injector, headspace injector, thermal analysis injector, methane conversion furnace, automatic sampler.

Third, the program heating, furnace temperature precision control, stable and fast

1. Eighth-order linear program heating, the rear door adopts photoelectric switch contactless design, reliable and durable, the intelligent rear door opening system stepless variable inlet and outlet air volume, shortens the stable equilibrium time of each detector system after program rise/cooling, truly realizes near-room temperature operation, temperature control accuracy of ±0.01 °C, to meet the requirements of a wide range of analysis.

2. The column box has a large volume, and the intelligent rear door opening system has stepless variable inlet and outlet air volume, which shortens the stable equilibrium time of each detector system after program rising/cooling; Furnace system: ambient temperature +5°C~420°C.

3. Better thermal insulation effect: when the column box, vaporization, and detection are all 300 degrees, the hottest spot of the outer box and top cover is only 40 degrees, which improves the experimental rate and ensures the safety of users.

4. Unique vaporization chamber design, smaller dead volume; Accessories replacement: the injection pad, liner, polarizing pole, collection electrode, and nozzle can be replaced with one hand; Body replacement: The filler column, capillary injector, and detector can be completely removed with only one wrench, making maintenance very convenient.

5. High sensitivity and high stability detector, hydrogen flame ionization detector (FID), thermal conductivity cell detector (TCD), electronic capture detector (ECD), flame photometric detector (FPD), nitrogen and phosphorus detector (NPD) can be installed to meet the needs of different schemes. Various detectors can be independently temperature controlled, and hydrogen flame detectors are easy to remove and install, making it easy to clean or replace nozzles.

After-sales service commitment

1. The equipment produced by our company is of excellent quality, stable and reliable performance, and the factory has passed strict quality testing, qualified acceptance and good packaging

2. After the demander receives the goods, it needs to install the instrument, notify our company by telephone or fax that it needs to install the equipment, and our company will arrive at the designated place within 24-72 hours after receiving the notice.

3. The equipment provided by our company is responsible for on-site installation and commissioning until the normal operation of the system

4. After the installation and commissioning is completed, our company will be trained by experienced technicians for customers on site, so that the operators can independently complete the operation of equipment and system, as well as the use of analysis attention matters and simple fault handling.

5. The warranty period is 1 year, and if the instrument fails within 1 year, free on-site service and free return for maintenance. Except for man-made reasons and natural force majeure factors, the warranty time is calculated from the acceptance signature, and during the warranty period, we will provide after-sales service such as three guarantees for the goods in strict accordance with the relevant laws and regulations of the People's Republic of China, unless otherwise stipulated in the contract.

6. During the warranty period, the equipment fails, we respond immediately, telephone guidance, if telephone guidance can not solve the problem, arrive at the scene within 3 working days until the fault is completely eliminated, the equipment fully restored to normal operation.

7. During the warranty period, our maintenance personnel can not eliminate the fault on site, and can return to our company to repair or update the instrument without charging any fee.

8. Our company is responsible for lifelong service for products until users give up use