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利用美国贝尔德公司ICP2070型单道扫描光谱仪，测定了贻贝中铬（Cr）、铜（Cu）、锌（Zn）、镉（Cd）、铁（Fe）、锰（Mn）等6种微量元素，其检出限分别为：3、3、3、2、5、1ug／L，用贻贝标准样品对照，单项测定数据完全在给定的标准值波动范围之内，分5批测定的重现性，其相对标准偏差（RSD）分别为：10．5％、2．8％、1．6％、2．6％、2．6％、2．5％。试验中采用改进的硝酸-高氯酸湿式消化法，自制的消化管控温消化、ICP光谱法顺序测定，简化了样品前处理步骤，消化时间缩短到3h以内；单样测定6种元素，只需不到5min，缩短了测定周期，并且数据准确可靠。
Six trace amounts of Cr, Cu, Zn, Cd, Fe and Mn in Mussels were determined by using the ICP2070 single pass scanning spectrometer from Baird, Element, the detection limits were: 3, 3, 2, 5, 1ug / L, with mussel standard sample control, single measurement data completely within the given standard value fluctuation range, measured in 5 batches The relative standard deviations (RSDs) were 10.5%, 2.8%, 1.6%, 2.6%, 2.6% and 2.5%, respectively. In the experiment, the improved nitric acid-perchloric acid wet digestion method, the homemade digestive tract controlled temperature digestion, and the ICP spectrometry method were used for the sequence determination, which simplified the sample preparation steps and shortened the digestion time to 3 hours. Six kinds of elements Less than 5min, shortening the measurement cycle, and the data is accurate and reliable.