CAJ | 학술논문

快速、准确测定多金属矿中的主次量元素需要根据多金属矿的具体类型选择不同的预处理方法。本文采集我国典型区域的铅锌、锡、钼、钒和铜镍等5种多金属矿，对比了盐酸－硝酸－高氯酸－氢氟酸－硫酸五酸微波消解和硝酸微波消解的溶样效果，应用电感耦合等离子体发射光谱法（ICP －OES）测定铜铅锌锡钨钼锰钛钒9种元素。通过国家标准物质分析验证，五酸微波消解的溶样时间较长，但一次可测定铜铅锌钼锰钒6种元素；硝酸微波消解的溶样时间短，但一次只能测定铜铅锌钼4种元素；两种方法的准确度和精密度高（RSD ＜5％），检出限低（5．3～30 mg／kg），均适合在地质行业推广应用。而由于锡钨钛3种元素不能完全被酸溶解，上述两种消解方法均不适合。
쾌속、준학측정다금속광중적주차량원소수요근거다금속광적구체류형선택불동적예처리방법。본문채집아국전형구역적연자、석、목、범화동얼등5충다금속광，대비료염산－초산－고록산－경불산－류산오산미파소해화초산미파소해적용양효과，응용전감우합등리자체발사광보법（ICP －OES）측정동연자석오목맹태범9충원소。통과국가표준물질분석험증，오산미파소해적용양시간교장，단일차가측정동연자목맹범6충원소；초산미파소해적용양시간단，단일차지능측정동연자목4충원소；량충방법적준학도화정밀도고（RSD ＜5％），검출한저（5．3～30 mg／kg），균괄합재지질행업추엄응용。이유우석오태3충원소불능완전피산용해，상술량충소해방법균불괄합。
Different pretreatment methods should be used for quick and accurate determination of major and minor elements in different types of polymetallic ores.In this study,five types of polymetallic ores including Pb-Zn,Sn, Mo,V,and Cu-Ni polymetallic ores were collected from typical metallogenic areas of China.Comparison of microwave digestion using mixed acids of hydrochloric-nitric-perchloric-hydrofluoric-sulphuric acids with digestion using nitric acid only was performed.Nine elements,Cu,Pb,Zn,Sn,W,Mo,Mn,Ti,and V were determined by the Inductively Coupled Plasma-Optical Emission Spectrometry technique. Analytical results of National Standards Reference indicate that digestion with a mixture of five acids has a long digestion time and can simultaneously determine the 6 elements of Cu,Pb,Zn,Mo,Mn,and V.Digestion with nitric acid needs only 1 h and can determine 4 elements,Cu,Pb,Zn,and Mo.Two methods have good accuracy and precision (RSD <5%)and low detection limits of 5.3 -30 mg/kg,which are suitable for application in geological analyses. However,neither of these two methods are suitable for analyzing Sn,W,and Ti,because these elements cannot be digested completely by acids.