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 in the rapid detection of organic phosphorus (such as dichlorvos, oxylorvos, parathion, methyl isofenapyr, methyl parathion, phoxim, Methamidophos, malathion, dichlorvos, dimethoate, etc.) and amino acid esters (such as methomyl, Budweiser, Funan Dan, Yechan Powder, Aldicarb, etc.) pesticide residues in vegetables, fruits, grains, tea, water and soil. It is suitable for rapid detection of pesticide residues in agricultural product testing centers at all levels, industry and commerce, technical supervision, health supervision, food and drug supervision and administration, agricultural product processing enterprises, agricultural product planting bases, planting professional cooperatives, agricultural markets, fresh supermarkets, schools, Environmental protection departments, hotels, and other fields.

Features
1. Can be connected to a computer or used independently, equipped with pesticide residue detection data system software;
2. Large screen LCD Chinese display, user-friendly interface, intelligent control by microcontroller, fully digital circuit design;
3. Acetylcholinesterase and butyrylcholinesterase reagents can be used simultaneously, and national standards and standards issued by the Ministry of Agriculture can be freely selected;
4. 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 test sample quantity selection function;
5. Automatic saving of test data, capable of saving 5000 sets of data, allowing users to view historical test data at any time;
6. The signal acquisition part adopts German imported original crystals, which have a sensitivity four times higher than domestic components;
7. All solid state light source, stable operation, light source lifespan up to tens of thousands of hours;
8. The cassette part adopts an array type series arrangement circuit, with no mechanical moving parts, anti-interference, anti vibration, stable and reliable performance;
9. 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;
10. Six samples can be measured simultaneously at once, and the number of test samples can be set freely. The measurement data is automatically saved and printed, and can be viewed by flipping pages, making the operation simple;
11. Equipped with USB international standard interface, data can be instantly transferred to the computer or automatically printed with free switching;
12. 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: 6; 2. Internal data storage capacity: 5000 sets;
3. Determination lower limit: 0.1-3.0mg/kg; 4. Wavelength: 410 ± 1nm;
5. Inhibition rate: 0-100%; 6. Measurement accuracy: 5%;
7. Transmittance accuracy: ≤ 2.0%; 8. Transmission density repeatability: ≤ 0.5%;
9. Linear error: ≤± 5%; 10. Suppression rate error value: ≤ 5%;
11. Inhibition rate repeatability: ≤ 5%; 12. Photocurrent drift: ≤ 1.0%/3min;
13. Repeatability error: absorbance (A) ≤ 0.005;
14. Range of absorbance values: 0.0500-3.100;
15. Usage environment: A. Temperature: 5 ℃~45 ℃ B. Humidity: ≤ 85%;
16. Working voltage: 220V ± 10%/50HZ;
17. Sensitivity: Potassium dichromate solution ≥ 3.17 × 10-3 (A/ug. ml);
18. Stability: No preheating required;
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).
Complete accessories
★ The instrument provides complete accessory configuration and adopts a beautiful and durable aluminum alloy packaging box;
The instrument provides supporting accessories such as scales, micropipettes, colorimetric dishes, scissors, tweezers, washing bottles, beakers, reaction bottles, etc., making it convenient for users to operate in fixed or mobile laboratories.