T/YCDAY 001-2024 Active

Main technical content: At present, the main methods used to determine heavy metals and harmful elements in food, agricultural products, and traditional Chinese medicines include inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS), and atomic fluorescence spectrometry (AFS). However, the determination of heavy metals in Jinnan sour jujube seeds currently relies primarily on atomic absorption spectrometry. However, Jinnan sour jujube seeds contain a variety of minerals, which can interfere with the determination of lead, cadmium, arsenic, mercury, and copper, and affect the test results. Inductively coupled plasma mass spectrometry (ICP-MS) has the advantages of low detection limits (ng/mL or lower), minimal matrix effects, simple spectral lines, the ability to simultaneously determine multiple elements, a wide dynamic linear range, and the ability to quickly determine isotope ratios. This standard adopts the ICP-MS method to determine and analyze heavy metals and harmful elements in Jinnan sour jujube seeds, providing an important reference for the rational development and utilization of Jinnan sour jujube products and market evaluation.