Principles and Applications
Using enzyme inhibition method, according to the national standard GB/T 5009.199-2003 "Rapid detection of organophosphate and carbamate pesticide residues in vegetables" and the industry standard NY/448-2001 "Rapid detection of organophosphate and carbamate pesticide residues in vegetables". It can quickly detect pesticide residues in the tested samples and is widely used for rapid detection of organophosphorus and carbamate pesticide residues in vegetables, fruits, grains, tea, water, and soil. It is suitable for agricultural testing centers, production bases, farmers' markets, supermarkets, schools, health departments, environmental protection departments, hotels, restaurants, and other fields at all levels.

Instrument Introduction
1. Ten channel large capacity design, capable of measuring ten samples simultaneously at a time, and the number of test samples can be freely set;
2. Single chip intelligent control, fully digital circuit design, can be connected to a computer or used independently, equipped with pesticide residue detection data system software, with a separate database, detection date, detection variety, detection data, detection personnel and other data can be directly recorded for inspection;
3. Large screen LCD Chinese display, user-friendly interface, automatic saving of test data, can store 10000 sets of data, users can view the historical data of the test at any time, convenient for outdoor operation;
4. Automatic saving of blank control test data eliminates the need for conducting blank control tests every time, saving reagents and improving work efficiency. Testing under the same control data reduces errors;
5. Acetylcholinesterase and butyrylcholinesterase reagents can be used simultaneously, and national standards and standards issued by the Ministry of Agriculture can be freely selected;
6. Built in computer numerical control timing function (with a relative timing difference of less than 0.5 seconds for testing), fully automatic calculation function, application comparison storage function, automatic printing function, and selection of test sample quantity;
7. Equipped with dedicated software, it has communication, online, help, measurement, setting, recording, saving, data statistical processing, and evaluation functions;
8. The detection speed is 3 minutes, and data and reports can be sent through the internet or local area network to achieve data sharing;
9. High sensitivity, the minimum detection limit for pesticides such as Methamidophos and Dichlorvos is better than the national standard requirements;
10. The signal acquisition part adopts German imported original crystals, which have a sensitivity four times higher than domestic components. Stable work, long lifespan, up to 100000 hours level;
11. All solid state light source, stable operation, light source lifespan up to tens of thousands of hours;
12. The cassette part adopts an array type series arrangement circuit, with no mechanical moving parts, anti-interference, anti vibration, stable and reliable performance;
13. Equipped with USB international standard interface, data can be instantly transferred to the computer or automatically printed with free switching;
14. The monitoring network information has powerful functions, including measurement data system and monitoring management system, which implement functions such as data collection, statistics, query, exchange, and printing, and can effectively implement remote monitoring and management (optional);
15. Provide complete accessory configuration, using beautiful and durable aluminum alloy packaging boxes, making it convenient for users to operate in fixed or mobile laboratories.

Technical Specifications
1. Detection channels: 10; 2. Internal data storage capacity: 10000 sets;
3. Determination lower limit: 0.1-3.0mg/kg; 4. Wavelength: 410 ± 1nm;
5. Inhibition rate: 0-100% *;6. Measurement accuracy: 3%;
7. Transmittance accuracy: ≤ 2.0%; 8. Transmission density repeatability: ≤ 0.5%;
9. Linear error: ≤± 3%; 10. Suppression rate error value: ≤ 3%;
11. Inhibition rate repeatability: ≤ 3%; 12. Repeatability error: absorbance (A) ≤ 0.005;
13. Range of absorbance values: 0.0500-3.100; 14. Photocurrent drift: ≤ 1.0%/3min;
15. Stability: No preheating required; 16. Work onOperating voltage: 220V ± 10%/50HZ;
17. Usage environment: A. Temperature: 5 ℃~45, B. Humidity: ≤ 85%;
18. Sensitivity: Potassium dichromate solution ≥ 3.17 × 10-3 (A/ug. ml);
19. The transmittance (T) value change caused by drift of photocurrent within 3 minutes shall not exceed 1.0% (or absorbance (A) value 0.005).