Solvent residue detection gas chromatograph solvent purity detection analyzer chromatograph GC-8990

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The National Food Safety Standard for the Determination of Residual Solvents in Food stipulates a gas chromatography method for the determination of residual solvents in edible vegetable oil and edible soybean meal, which is applicable to the determination of residual solvents in edible vegetable oil and edible soybean meal.

At present, only industrial hexane and solvent six used for food processing are used for vegetable oil extraction both domestically and internationally. In China, No. 6 solvent extraction is basically used, and some enterprises also use industrial hexane for extraction. No. 6 solvent oil is an alkane mixture, a petroleum refining product, also known as extraction oil. n-hexane is produced by distillation of No. 6 solvent oil. N-hexane is a colorless liquid with low toxicity and a faint special odor. It is mainly used as a solvent for the polymerization of olefins such as propylene, an extraction agent for edible vegetable oil, a solvent for rubber and coatings, and a diluent for pigments. It has a certain degree of toxicity and can enter the human body through respiratory and skin pathways. Long term contact can cause chronic poisoning symptoms such as headache, dizziness, fatigue, and numbness in limbs, and in severe cases, can lead to fainting Loss of consciousness, cancer, and even death. 6 # solvent oil is colorless transparent liquid, volatile Flammable liquid, hydrocarbon mixture, and various hydrocarbon solvents contain aliphatic hydrocarbon, aromatic hydrocarbon and cyclohydrocarbon with different components. Executive standard GB5009.262-2016
Application field:

Petroleum, chemical industry, Baijiu, environment, food safety, medical equipment, disease control, education and scientific research and other fields can be used to analyze the constant, trace and trace amounts of organic, inorganic and gas.

Using a hydrogen flame ionization detector and equipped with a capillary injection system for detecting solvent residues in packaging materials.

This instrument adopts a microcomputer control system and a large Chinese screen display, making its appearance more beautiful and smooth. The newly designed keyboard buttons are simple and fast, and the circuits are all made of imported components. The instrument has stable performance and high reliability.

1. Fully computerized button operation, 5.7 inch (320 * 240) large LCD display in both Chinese and English, with free switching between Chinese and English displays, meeting the operational requirements of different groups. The human-machine dialogue mode is convenient for operation.

2. The microcomputer controlled hydrogen flame detector has achieved automatic ignition function, gas cut-off protection function, startup self-diagnosis function, power outage storage protection function, anti power sudden interference function, networked data communication and remote control function. Over temperature protection function, data memory system

Chromatographic software:

1. The N3000 chromatographic data processing software compensates for some of the shortcomings of the N2000 version, highlighting many characteristics such as stable performance, accurate calculation, convenient operation, and personalized applications.

Performance characteristics:

1、 The unique design of the injection system allows for lower detection limits

1. Unique injection port design solves injection discrimination; The dual column compensation function not only solves the baseline drift caused by program heating, but also subtracts the influence of background noise to obtain a lower minimum detection limit.

2. Equipped with a packed column and capillary split/non split injection system (with diaphragm cleaning function)

3. Optional gas six way injection valve injector, headspace injector, thermal analysis injector, methane conversion furnace, and automatic injector.

4. Unique vaporization chamber design, smaller volume; To meet the requirements of different solutions, hydrogen flame ionization detector (FID), thermal conductivity cell detector (TCD), electron capture detector (ECD), flame photometric detector (FPD), and nitrogen phosphorus detector (NPD) can be installed. The detector and injection port can independently control temperature,

2、 Column temperature box

Temperature range: room temperature+5-420 ℃

Temperature setting: 1 ˚ C; Programmed heating rate 0.1 ˚ Maximum heating rate of C: 40 ˚ C/min

Temperature stability: When the ambient temperature changes by 1 ˚ At C, it is 0.01 ˚ C

Programmed temperature rise: 10th order programmed temperature rise with adjustable injection port,

Multiple injection ports can be equipped: filling column injection port

Split/non split capillary injection port

Detector indicators:

Hydrogen flame ionization detector (FID)

Maximum operating temperature: 400 ℃

Detection limit: ≤ 5 × 10-12g/s (n-neneneba hexadecane)

Drift: ≤ 5 × 10-13A/30min

Noise: ≤ 2 × 10-13A

Dynamic linear range: ≥ 107