1. Introduction The capsaicin detector is mainly used for natural capsaicin in all kinds of peppers and pepper products. The instrument is composed of ultra-high brightness light-emitting diode light source, colorimetric cell, high-sensitivity integrated photocell, microprocessor, large Chinese LCD screen, embedded micro thermal printer integrated chip, and can be directly displayed on the large screen LCD screen. Measure the content of the relevant indicators in the sample and print out the analysis results. You can also transfer the data to the computer for data analysis through the computer interface.
2. The principle of the instrument The phase capsaicin component in the tested sample reacts specifically with the developer under certain conditions to produce products of different color depths. These products will selectively absorb different wavelengths of visible light, and the color depth is The level of absorbance is correlated with the concentration of the index component in the sample, and obey Lambert-Beer law within the appropriate concentration range. Therefore, the detected absorbance value is automatically calculated by the standard curve software built in the instrument to obtain the accurate concentration of the index component in the sample and whether the result exceeds the standard.
3. For the detection method of instrument characteristics, refer to relevant national standard methods or their improved methods.
The instrument is developed and produced with reference to the professional standard of JB / T9324-1999 visible spectrophotometer.
Adopt integrated chip control, with functions of detection, printing and data transmission.
Chinese display on the screen, interactive operation by man-machine, small size, light weight, easy to carry.
The instrument software system is of flexible design and has a strong functional reserve, which can be easily upgraded.
Equipped with software, the test data results can be transmitted and stored through the USB interface.
Equipped with aluminum alloy instrument box; easy to carry built-in micro printer, convenient for on-site printing detection data channel number means the number of samples that can be tested simultaneously, type A can detect 5 samples at the same time, type B and C can detect 16 samples simultaneously Instrument design, accept customer customized inspection efficiency.
Second, the detection limit of the main technical indicators of the instrument: 2.0mg / kg is 30.84SHU
Transmittance repeatability: 2.5%
Photocurrent drift≤1% / 3min
Measurement accuracy: 5%
Sample extraction time: 15-30 minutes, wait 24 hours Detection time: 10-20 minutes, wait 50 minutes Working environment temperature: 5 ～ 40 ℃
Power supply: AC 220-240V 1A
Instrument size: 380 × 250 × 90mm,
Aluminum alloy outer box size: 465 × 320 × 175mm (length * width * height)
3. Detection steps
1. The more crushed, the better
2. Dissolve Take 1.0g in a 25ml volumetric flask, dissolve with reagent A and set the volume, put it in a dark place for 24h, shake it from time to time
3. Elution by chromatography device, using reagent B
4. Air dry Take 1ml of the eluted solution in a 50ml volumetric flask and dry it with hot air <64 degrees Celsius
5. Add color developer (reagent C, reagent D) for color comparison, (50min required)
4. Remarks: If the concentration of chili is high, it can be compared after dilution;
It is used to detect natural chili and its products such as dried chili, fresh chili, chili powder, etc .;
It is suitable for food factories and scientific research departments with testing laboratories.
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