Introduction to Nitrite Detector Instrument

The FT-YXSY rapid detection instrument for nitrite in food is an integrated food safety detection and analysis equipment, which can quickly detect the nitrite content in meat, canned meat, smoked meat, sausages, dairy products, kimchi, pickled vegetables, etc; This instrument is based on GB5009.33-2010 "Determination of Nitrite and Nitrate in Food". Nitrite in food is extracted and reacts with detection reagents to produce colored compounds. The absorbance is then measured using a nitrite detector, and within a certain range, the absorbance is proportional to the content. Through testing, it can be determined whether the food meets national standards or whether it is excessively toxic. Reserve other testing programs and ports for the instrument, and easily add testing items according to future needs. In the future, it can be upgraded to a comprehensive type instrument for detecting aquatic and noodle products.

Application of nitrite detector instrument

Widely used in catering testing, food and drug supervision bureaus, health departments, meat and food processing enterprises, shopping malls and supermarkets, quality supervision and inspection, business management, fried food production bases, major food safety monitoring systems and other units.

Introduction to the functions of nitrite detector

1. The Android intelligent operating system adopts more efficient and user-friendly operation. The instrument has Ethernet connection, WiFi network upload, GPRS wireless remote transmission function, and can quickly upload data.

2. Integrated portable rapid testing equipment, meeting the needs of on-site and mobile testing, capable of detecting all testing items under the same software, and displaying testing results intuitively through the same window.

3. High degree of intelligence, the instrument has self checking function: it has power on self checking and zero adjustment functions, and automatic detection of repeatability function.

4. Detection channels: ≥ 12 detection channels, capable of testing multiple samples simultaneously. Each sample is controlled by a program to work independently without interfering with each other.

5. Display mode: ≥ 8-inch LCD touch screen display, user-friendly Chinese operation interface, intuitive and simple reading.

6. Equipped with a new generation embedded thermal printer, it can choose between manual printing or automatic printing. After the inspection is completed, the inspection report and QR code can be automatically printed.

7. The light source adopts imported ultra high brightness light-emitting diodes, which have high precision, strong stability, controllable light source, can turn off unused light sources, and lower power consumption.

8. Designed with USB 2.0 interface, it is convenient for data storage and movement, and can be directly connected to a computer at any time. The instrument can also be controlled by a computer. Implement data query, browsing, analysis, statistics, printing, etc.

9. The instrument has a multi category sample menu library, which allows for flexible selection of detection samples. Different detection channels can simultaneously detect different sample items.

10. Sample processing is simple and labor-saving, and the overall operation is fast, safe, and convenient.

11. The instrument has its own protection function, which can set a username and password to prevent non staff operations.

12. High sensitivity, high detection accuracy, high repeatability accuracy, scanning high-precision optical sensor.

13. The instrument has the functions of recalibration, locking, and factory reset.

14. The result judgment line can be modified, the reference value calibration value can be saved, and data will not be lost when power is turned off.

Main parameters of nitrite detector

1. The main control chip adopts ARM Cortex-A7, RK3288/4-core processor, with a main frequency of 1.88GHz, faster operation speed and stronger stability.

2. Display mode: 7-inch LCD touch screen display, user-friendly Chinese operation interface, intuitive and simple reading.

3. DC 12V power supply, can be connected to car power supply, can be equipped with 6ah large capacity rechargeable lithium battery, convenient for outdoor mobile testing.

4. Dual wavelength cold light source, each channel is equipped with 405 and 528nm wavelength light sources, with standard optical path switching device. The optical path switching function can achieve up to 64 wavelengths, and all detection items can be detected simultaneously in all channels.

5. Automatic adjustment and calibration of light source brightness

6. Intelligent constant current and voltage regulation, automatic calibration of light intensity, and long-term continuous operation of the light source without temperature drift phenomenon.

7. Built in new national limited edition standards, on-site comparison with measured results, and continuous updating of standards.

8. Continuous injection and testing

9. Sample numbers are automatically accumulated.

10. The testing items can be expanded.

11. The test results can be printed and uploaded in batches.

12. The test results are in an Excel spreadsheet, which can be copied by connecting to a computer.

13. Supports USB storage, standard USB interface, and driver free installation.

14. Configurable large capacity lithium battery, firmware upgradable

Technical parameters of nitrite detector

1. Lower limit of nitrite detection: 1mg/kg

2. Nitrite linear range: 1-500mg/kg

3. Accuracy error: ± 3%

4. Linear error: ± 5 ‰

5. Stability: ± 0.001A/hr

6. Wavelength accuracy:< 2.0nm

7. Absorption range: 0.000~4.00 ABS

Operation steps of nitrite detector

1. Sample pre-treatment:

① Weigh 0.5g (0.5ml) of crushed sample into a test tube and add purified water to the 25ml mark;

② Ultrasonic extraction for 5 minutes, filter for later use. (If the color is darker, 0.5g of activated carbon can be added, heated in a 60 ℃ water bath for 10 minutes, and filtered while still hot)

2. Control sample testing

① Take 3mL of sample solution and add 0.5mL of purified water;

② After shaking well, transfer 2.5ml into a colorimetric dish;

③ Place the colorimetric dish into the designated channel and follow the "reference measurement" button

3. Sample testing

① Take 3mL of sample detection solution and add 0.5mL of nitrite detection solution;

② Leave at room temperature (25 ± 5 ℃) for 10 minutes;

③ Transfer 2.5ml into a colorimetric dish;

④ Place the colorimetric dish into the designated channel and follow the "sample measurement" button

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