Abstract
In order to quickly detect the harmful substances in food, a multiple channel portable food safety detector which can be used in the field test is designed. The detector uses the newly national standards and methods, and the combination of Windows CE Operate System and colorful LED touch screen was adopted in this design, changing the operate tool from mouse to fingers, making the operation much more simple and convenient. The result of experiment shows that the system has the advantage such as easy operating, portable, high performance and high reliability. And it can detect Pesticides residue more quickly and accurately, and the measurement error are between ±2% and ±4%, which meets the national standards and its design require.
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