|Abstract:As a new method of deep-penetrating geochemistry, the analytical technique of active state element has been widely used in searching for concealed ore bodies. This study systematically investigated extract condition for four types of element active states, such as Water Extractable Metals (WEM), Clay Absorption Metals (CAM), Organically Bound Metals (OBM), Occluded Metals in Iron-manganese Oxides (MM). The experiments tested effects of extraction time, liquid-solid ratio, centrifugal rotating speed and extracting solution storage time on the extraction efficiency. The extraction conditions of four types of active state elements were improved and the optimum extraction conditions were determined: the extraction time was 24 h, the liquid-solid ratio was 10:1, and the centrifugal rotating speed was 4000 rpm. The liquid was extracted using new high resolution ICP-MS, which is equipped with excellent dynamic linear range (10-12~1012) and high sensitivity and can be used to analyze more than 50 elements. This study also optimized the HR-ICP-MS working condition, including auxiliary flow, Sample gas flow and sampling depth, etc. Finally, we established the HR-ICP-MS method for the analysis of the four types of active state elements and obtained the detection limits and precision of each element in four active states respectively. The precision ranges of elements in WEM, CAM, OBM and MM are 3.4%~38.1%, 3.78%~35.7%, 2.41%~35.9%, 2.26%~32.5%, respectively. By sequential extraction, we added the amount of elements extracted from four phase states and residues in the residue, and obtained the sum results of 50 elements. The accuracy (RE) of this method is -29% ~ -1.3%, which meets the current requirements of analysis and determination of active state elements.