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.
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basic information
【Basic Performance of the Device】 ＜DEENA60 Main Unit＞ ■ Automatic addition of reagents (up to 8 types of reagents can be installed) ■ Stirring by shaker ■ Heating by hot plate ■ Cooling ■ Automatic addition of internal standard solutions and standards ■ Meniscus adjustment using ultrasonic height sensor *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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The auto-analyzer developed by the former Technicon Corporation, a global pioneer in continuous flow analysis devices, is still widely used in analytical laboratories around the world today. In Japan, it continues to operate as an essential device in national and public research institutes, testing laboratories, and corporate factories and testing facilities. Our company, BL Tech Co., Ltd., has inherited approximately 40 years of auto-analyzer business in Japan and is committed to developing and manufacturing optimal continuous flow analysis devices to meet the current hot demand.