CAJ | 학술논문

活动态提取技术是深穿透地球化学研究隐伏矿的有效手段之一，但在方法应用过程中发现单一的提取剂不能适用于所有元素和各种覆盖区，并且提取过程中温度、时间、酸度等条件对提取结果影响较大，可能掩盖有效的活动态信息。本文建立了电感耦合等离子体质谱法（ ICP-MS）测定多金属元素活动态提取液中铜、铅、锌、钨、钼的方法。通过试验确定了最佳提取条件为：固液比1：10，提取时间24 h，提取液 pH＝7.0，提取温度25℃。各元素的方法检出限为0.006~0.021μg/g，精密度（RSD）为1.9%~6.6%。该方法应用于栾川矿集区西鱼库隐伏班岩钼（钨）矿床，探测到明显的W、Mo活动态异常，与隐伏矿体在地表投影位置相符。
활동태제취기술시심천투지구화학연구은복광적유효수단지일，단재방법응용과정중발현단일적제취제불능괄용우소유원소화각충복개구，병차제취과정중온도、시간、산도등조건대제취결과영향교대，가능엄개유효적활동태신식。본문건립료전감우합등리자체질보법（ ICP-MS）측정다금속원소활동태제취액중동、연、자、오、목적방법。통과시험학정료최가제취조건위：고액비1：10，제취시간24 h，제취액 pH＝7.0，제취온도25℃。각원소적방법검출한위0.006~0.021μg/g，정밀도（RSD）위1.9%~6.6%。해방법응용우란천광집구서어고은복반암목（오）광상，탐측도명현적W、Mo활동태이상，여은복광체재지표투영위치상부。
Extraction of elements of mobile forms is one of the important techniques in deep-penetrating geochemistry for finding concealed orebodies. However,the single extraction agent cannot be applied to all elements and all coverage areas. Moreover,the effective information of mobile forms is easily obscured because the extraction time, pH and extraction temperature have important effects on the extraction results. Determination of the mobile forms of multi-metal elements(W,Mo,Cu,Pb,Zn)in extractant using Inductively Coupled Plasma-Mass Spectrometry ( ICP-MS)has been established. The optimum conditions include solid-liquid mixing ratio of 1: 10,extraction time of 24 h,pH of 7. 0,and an extraction temperature of 25℃. The determination limit of the proposed method is 0. 006-0. 021 μg/g and the relative standard deviation( RSD)is 1. 91% -6. 56%. This method has been applied to Xiyuku concealed porphyry Mo-W ore deposit in the Luanchuan ore concentrated district. The prospecting anomaly in mobile forms of W and Mo is consistent with the projection position of concealed orebodies in the ground surface.