Study on the decomposition using nitric acid in the analysis of Cd and other elements in rice and rice ears.

[Free Technical Data Available] Fully automated from stirring and heating to filling! Contributes to significant reduction in work time!

This technical document discusses the automatic pretreatment using the nitric acid reflux method for rice (both brown and white rice) and rice ears, utilizing the automatic pretreatment device "DEENA" for processes such as reagent addition and acid decomposition. Regarding cadmium contained in rice, the standard has previously been set at 1 ppm (mg/kg), but in April 2010, a revision was issued concerning the standards for food and additives, changing the standard for cadmium and its compounds in rice (both brown and white) to below 0.4 ppm (mg/kg). In traditional methods, wet digestion typically involves the use of nitric acid, sulfuric acid, or perchloric acid; however, these methods are time-consuming and labor-intensive, making it difficult to process multiple samples quickly. Therefore, we examined the automatic pretreatment using the nitric acid reflux method for rice (both brown and white) and rice ears with "DEENA," which can perform tasks such as acid addition, stirring, and dilution under PC control in a fully automated manner. [Contents] ■ Purpose ■ Overview ■ Equipment/Reagents Used ■ Analysis Flow, etc. *For more details, please refer to the PDF document or feel free to contact us.

Other measuring instrumentsOther analytical equipment