Working principle of pesticide residue detector (instructions for using pesticide residue detector)

In the process of planting agricultural products, it is inevitable to use a large amount of pesticides in pursuit of agricultural product yield. If these pesticides are not cleaned up during subsequent processing, packaging, and transportation, they will directly or indirectly threaten people's health and cause damage to the natural environment. In order to maintain the health and safety of consumers, it is necessary to conduct timely detection of pesticide residues in relevant agricultural products, and then carry out targeted treatment. Many agricultural markets and wholesale markets have established pesticide residue detection systems. Considering the large output and input of agricultural products in these places, as well as the fast detection pace, Holder Electronics has launched this pesticide residue detection instrument, which is easy to use, accurate in detection values, and has real-time data upload function.

Working principle of pesticide residue detector

Working principle of pesticide residue detector:

The pesticide residue detector is developed using enzyme inhibition method and can monitor organic phosphorus and carbamate pesticides. It is widely used for rapid monitoring of organic phosphorus and carbamate pesticide residues in foods such as vegetables, fruits, tea, grains, and agricultural by-products. The specific working principle is as follows:

According to the principle of enzyme inhibition, under certain conditions, organophosphorus and carbamate pesticides can significantly inhibit the normal function of cholinesterase, and their inhibition rate is positively correlated with the concentration of pesticides. Under normal circumstances, enzymes catalyze the hydrolysis of acetylcholine, a neurotransmitter metabolite, which reacts with chromogenic agents to produce a yellow substance. The absorbance at 410nm is measured over time using a spectrophotometer, and the inhibition rate can be calculated to quickly determine the residual levels of organophosphorus and carbamate pesticides in the sample.

Instructions for using pesticide residue detector:

1. Prepare the sample solution according to the steps in the reagent manual.

2. Place the sample solution colorimetric dish into the corresponding channel, click on the sample name button to select [sample name], click on detection, and ensure that the detection time is consistent with the reference solution.

3. Click on the reaction time to set the corresponding sample reaction time.

After the progress bar is completed, the pesticide residue detector displays the test results. If you need to print, click the [Print] button, and after clicking Print, the data will be automatically saved.

5. The pesticide residue detector continuously measures other samples, repeating steps 2-5.

Instructions for using pesticide residue detector

The pesticide residue detector can easily handle the safety testing of various fruits, vegetables, and food, and transmit the test results in real time to the management center. Through statistical queries in the monitoring information system, it can analyze reports, evaluate reputation, and provide safety warnings. Through real-time dynamic monitoring from multiple perspectives, our diet is healthier and more reassuring.