● petrochemical industry: refinery gas analysis; Simulated distillation;

Oil analysis; Simple hydrocarbon analysis;

Analysis of sulfur and nitrogen compounds;

Gasoline additive analysis;

Fatty hydrocarbon analysis; Aromatics analysis;

Chromatographic analysis of process.

● biochemistry, medicine, health and quarantine:

Estriol determination; Determination of pregnant diol and pregnant triol in urine;

Determination of cholesterol in urine; Analysis of catecholamine metabolites;

Analysis of ethanol, anesthetics and amino acid derivatives in blood;

Analysis of testosterone in blood; Analysis of some volatile drugs.

● food inspection: pesticide residue analysis; Analysis of flavors and fragrances;

Analysis of food additives;

Analysis of volatiles in food packaging materials.

● environmental protection: air pollution analysis

(there are non methane total hydrocarbons, benzene series, toxic and harmful gases,

Gas (sulfide, nitrogen oxide, etc.);

Drinking water analysis (polycyclic aromatic hydrocarbons, pesticide residues, organic solvents, etc.);

Water resources (including organic pollutants in fresh water, seawater and wastewater);

Soil analysis (organic pollutants);

Solid waste analysis

In these fields, gas chromatography has solved the problems of quality inspection, scientific research, pollution detection and production control of intermediates and industrial products in industrial production

★ the advanced 100M / Gigabit Ethernet communication interface and built-in IP protocol stack are adopted, so that the instrument can realize long-distance data transmission through the enterprise's internal LAN and Internet; Facilitate the erection of the laboratory, simplify the configuration of the laboratory and facilitate the management of analytical data;

★ three independent connection IP addresses are designed inside the instrument, which can be connected to the working computer (laboratory site), the computer in charge (such as quality inspection department, production department, etc.) and the executive computer (such as environmental protection bureau, Technical Supervision Bureau, etc.), and can monitor the operation of the instrument and analyze the data results in real time when necessary;

★ the special workstation equipped with the instrument can support the access of multiple chromatographs at the same time, realize data processing and instrument reverse control, and simplify document management;

★ the instrument can be connected to the manufacturer through the Internet to realize remote diagnosis, remote update, etc. (it needs to be set by the user);

★ the instrument is equipped with a 4.3-inch color LCD touch screen, which supports hot plug and can be used as a handheld controller;

★ the instrument adopts multi processor parallel working mode, which makes the instrument more stable and reliable; A variety of high-performance detectors can be selected, such as FID, TCD, ECD, FPD and NPD. Up to three detectors can be installed at the same time to meet the analysis needs of complex samples.

★ the instrument adopts modular structure design, and the later maintenance is simple and convenient.

★ the new microcomputer temperature control system has high temperature control accuracy, excellent reliability and anti-interference performance; It has eight completely independent temperature control outputs, which can realize twenty order programmed temperature rise. It has a column box automatic rear door opening system, which improves the near room temperature control ability and faster temperature rise / drop speed;

★ the instrument is equipped with advanced electronic flow control unit (EFC) and electronic pressure control unit (EPC) to realize the digital control of gas path, which greatly improves the stability of the instrument and the reproducibility of analysis results;

★ the chromatograph has built-in 24 bit AD circuit with low noise and high resolution, and has the functions of baseline storage and baseline deduction.

★ the standard workstation is suitable for WinXP, WIN2000, win7, win8, win10 and other operating systems.

★ the chromatograph microcomputer system with completely independent intellectual property rights has the standard protocol of Modbus / TCP and can be connected to DCS system.

Main technical indicators:

● operation display: 4.3-inch touch screen

● temperature control area: 8 channels

● temperature control range: 5 ℃ ~ 400 ℃ above room temperature, increment: 1 ℃, accuracy: ± 0.1 ℃

● temperature programmed order: 16

● lift rate: 0.1 ~ 39 ℃ / min (ordinary type); 0.1 ~ 80 ℃ / min (high speed type)

● gas path control: electronic pressure / flow control mode

● EPC and EFC working modes: 3; Constant current mode, constant voltage mode and shunt mode

● EPC and EFC working gas: 4 kinds; Nitrogen, hydrogen, air, helium, argon

● EPC, EFC lift: 4 steps

● EPC and EFC control range: pressure: 0 ~ 0.6MPa; Flow 0 ~ 100sccm or 0 ~ 500sccm (air);

● EPC and EFC control accuracy: pressure 0.01kpa; Flow 0.01sccm; ● external events: 4 channels; Auxiliary control output 4 channels

● type of injector: packed column injection, capillary injection, six way valve gas injection and automatic headspace injection. Number of optional detectors: 3 (at most); FID, TCD, ECD, FPD and NPD optional

● start sample injection: manual and automatic optional

● communication interface: Ethernet: IEEE802.3

Hydrogen flame ionization detector（FID）

● logarithmic amplifier

● maximum service temperature 450 ℃

● detection limit ≤ 5 ×10^-13g / S (n-hexadecane); Equivalent to 0.5pg (benzene)

● baseline noise ≤ 2 ×10^-14A

● baseline drift ≤ 5 ×10^-14a / 30min (after the instrument is stable for 1 hour)

Thermal conductivity detector (TCD)

● semi diffusion constant current control is adopted

● sensitivity: ≥ 5000 ml · MV / mg.

● noise: ≤ 20 μ V。

● baseline drift: ≤ 100 μ V/30min。

● linearity ≥10⁴

Electron capture (ECD)

● detection limit: ≤ 1 ×10^-13g/ml

(propyl hexahexahexane isooctane solution)

● baseline noise: ≤ 0.03mv

● baseline drift: ≤ 0.2mv/30min

● linear range: 10³

● radioactive source: 63^Ni

Flame luminosity (FPD)

● detection limit: (s) ≤ 5 ×10^-11g/s 

(P)≤1 × 10-12g/s；

(methyl parathion anhydrous ethanol solution)

● baseline noise: ≤ 3 ×10^-13A 

● baseline drift: ≤ 2 ×10^-12A/30min 

● linear range: p-sulfur ≥10², P-PHOSPHORUS ≥10³

software

● the organic combination of chromatographic data processing and instrument operation control makes the operation convenient and the interface friendly;

● adopt 10 / 100M or Gigabit adaptive Ethernet communication technology; High communication rate and support long-distance transmission and control;

● adopt multithreading technology to realize the simultaneous cooperation of signal acquisition, data processing and user management;

● the unique software architecture realizes the rich configuration of multiple monitoring agents in one system; Users with a small number of instruments can view and manage the analysis results on a single computer; Users with a large number of instruments can be equipped with multiple monitoring seats to meet the needs of multiple people working at the same time;

● equipped with analysis result expansion communication interface to support user secondary development and function expansion;

● the unique intelligent spectrum peak identification technology minimizes the spectrum processing parameters that need to be set by the user, and basically realizes the automatic processing of peak judgment, baseline correction and overlapping peak segmentation;

● the sampling data can be read from CDF file conforming to a / a (American Analytical Society) standard, so it can be connected with Agilent, waters and other chromatographic workstations;

● unique high fidelity digital filtering algorithm is adopted, which has strong anti-interference ability and can detect weak peaks at the same level as the baseline noise;

● data processing includes: normalization method, correction normalization method, single point correction method (single point internal standard method, single point external standard method), multi-point correction method (multi-point internal standard method, multi-point external standard method);

● the workstation supports Modbus / TCP protocol and can easily access DCS to complete DCS processing of analysis results;