Fully automated analysis of metals such as cadmium in rice (brown rice and white rice) and rice ears, including the addition of nitric acid and perchloric acid, heating decomposition, cooling, and sample preparation!
Regarding the cadmium contained in rice, the standard limit was previously set at 1 ppm (mg/kg), but in April 2010, a revision was made to the standards for food and additives, lowering the limit for cadmium and its compounds in rice (both brown and white rice) to 0.4 ppm (mg/kg). Traditionally, wet digestion methods using nitric acid, sulfuric acid, or perchloric acid were employed; however, these methods were time-consuming and made it difficult to process multiple samples quickly. Therefore, we examined the automatic pretreatment of rice (both brown and white) and rice ears using the nitric acid reflux method with DEENA2, which allows for fully automated operations such as acid addition, stirring, and dilution under PC control. ■ Acid addition heating pretreatment ■ Reagent addition ■ Cooling ■ Dilution ■ Prevention of human exposure to acid *For more details, please refer to the PDF document or feel free to contact us.
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【Summary】 ■ A method has been established for fully automated analysis, from the automatic addition of nitric acid to stirring, heating, and up to the final measurement. ■ In the pretreatment of microwave and high-temperature ashing, only a small number of analyses could be performed per batch, but by using DEENA2, it has become possible to process samples from 60 specimens simultaneously in a fully automated manner. *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.