Portable X-ray fluorescence spectrometer Compass300 detect cadmium in rice

Heavy metals in food are harmful to human body, especially rice with the highest cadmium toxicity. A new method for the detection of cadmium in rice was established by combining X-ray fluorescence with dry ashing. After rapid ashing pretreatment, cadmium in rice was enriched to a certain extent, and the ash was packed into a special sample measuring cup, and then portable X-ray fluorescence spectrometer was used to detect cadmium in rice Test. The results of this method are basically consistent with those of the traditional microwave digestion-graphite furnace atomic absorption spectrometry. It has good accuracy, indicating that the detection limit of this method can be used for the rapid screening method of cadmium rice is 0.72mg/kg, and the time required for a single test process is about 15min. Compared with the traditional method, this method has the characteristics of simple operation and short time, and can provide a quick screening method for rice with cadmium exceeding the standard

Portable X-ray fluorescence spectrometer Compass300 detect cadmium in rice