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Near Infrared Spectrometer

Double-beam infrared spectrophotometer

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The SP-30A double-beam infrared spectrophotometer has the advantages of simple structure, easy adjustment and measurement, high sensitivity, good stability and low price.
It is widely used in various fields such as petroleum, chemical industry, environmental protection, teaching, material science, public security, national defense, etc. It is an indispensable analytical and testing instrument for scientific research, production and teaching.

It has the functions of spectrum background baseline memory, spectrum background baseline correction, spectrum data smoothing operation, spectrum baseline tilt correction, spectrum data differential operation, spectrum data four arithmetic operations, spectrum data accumulation operation, %T and ABS conversion, spectrum file management, spectrum gap value detection, spectrum scale expansion, spectrum absorption expansion, etc.

1. Adopt the principle of direct proportional recording by computer.

2. Adopt a high-energy double-blazed grating to cover the entire working band.

3. Adopt computer for instrument control and data processing, and users can establish their own spectral database.

4. Equipped with English operating software.

5. Adopt vacuum thermocouple infrared receiving device to ensure the high performance and reliability of the instrument.

ModelSP-30A
Wavelength range4000-400cm-1(25000-2500nm)
Wavelength accuracy≤±4cm-1(4000-2000cm-1);±2 cm-1(2000-400cm-1)
Wavelength repeatability≤2cm-1(4000-2000cm-1); ≤±1cm-1(2000-400cm-1)
Resolution capability1.5cm-1(near 1000cm-1)
Transmittance accuracy±0.2%T(excluding noise level)
Transmittance repeatability≤0.5%T(1000 cm-1—930 cm-1
Io line straightness≤±2%T
Stray light≤0.5%T(4000-650cm-1);≤1%T(650-400cm-1)
Test modeThree types (transmittance, absorbance, single beam)
Scanning speed(very fast, fast, normal, slow, very slow)
Slit programFive levels (very wide, wide, normal, narrow, very narrow)
ResponseFour levels (very fast, fast, normal, slow)
Working modeThree types (continuous scanning, repeated scanning, fixed wavelength scanning)
Horizontal/vertical coordinate expansionAny
DimensionsMain unit 800mmx610mmx300mm
WeightApprox. 100kg
Power supplyAC 220V+10%, 50+1 Hz, power 300W

1. Identification of compounds.

2. Structural analysis of unknown compounds.

3. Quantitative analysis of compounds.

4. Study on the transient relationship between chemical reaction kinetics, crystal change, phase change, material stretching and structure.

5. Continuous detection of industrial processes and air pollution.

6. Monitoring of free silica in the coal industry.

7. Detection in the jewelry industry.

8. Measurement of hydroxyl groups in crystal quartz.

9. Composition analysis of polymers.

10. Drug analysis.

11. Measurement of infrared lens transmittance.

12. Health quarantine, pharmaceuticals, food, environmental protection, public security, petroleum, chemical industry, optical coating, optical communication, materials science and many other fields.

Qualitative analysis

Qualitative analysis is often used for the overall identification of substances. For samples that can be anticipated in advance, the identification can be confirmed by comparing the sample infrared spectrum with the standard infrared spectrum. For samples that cannot be anticipated in advance, identification can be performed by searching the infrared spectrum library. Our company can provide about 220,000 Sadtler spectra.

1. Identification of textile fibers

2. Pharmaceutical GMP certification test

3. Testing of food and drug packaging materials

4. Application scheme for testing brake shoe materials

5. Screening of organic tin in electronic and electrical products

6. Trace evidence analysis, inspection of paint evidence

7. Testing of high molecular polymer materials such as plastics, rubber, adhesives, asphalt, resins, etc.

Quantitative analysis

Quantitative analysis is based on Lambert-Beer quantification, and a relationship curve between content and infrared characteristic peak absorbance or peak area is established, and then the unknown content sample is tested.

1. Benzene content in gasoline

2. Determination of hemispherical emissivity of building glass

3. Determination of SBS content in modified asphalt

4. Determination of free silica content in dust

5. Determination of fatty acid methyl ester (FAME) content

6. Determination of ethylene content and isotacticity in polypropylene

7. Identification and determination of typical unconventional additives in motor gasoline

8. Determination of vinyl acetate content in ethylene-vinyl acetate copolymer (E-VAC)

Other typical infrared applications

1. Determination of nitrile rubber content

2. Determination of interstitial oxygen content in silicon crystals

3. Determination of substitutional carbon atom content in silicon

4. Determination of the total amount of recoverable petroleum hydrocarbons in solid waste

5. Determination of water quality, petroleum and animal and vegetable oils

6. Rapid determination of benzene content in gasoline by mid-infrared spectral absorption method

7. Determination of hydroxyl content in quartz

8. Determination of methylal content in motor gasoline

9. Application in adhesive curing rate testing

10. Determination of alcohol ester hydroxyl value and saponification value in cold rolling oil

11. Determination of T501 antioxidant content in transformer oil and turbine oil

12. Determination of carbon type structure and structural cluster composition of mineral insulating oil and lubricating oil

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