Abstract Inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometry with the preliminary hydride generation (HG-ICP-OES) techniques were used for the determination of chalcophile elements in sulfide-bearing rocks after different sample pretreatment. As and Se in the hydrochloric acid leaching solutions could not be determined neither by quadruple MS with correction equations, no by high resolution (HR-MS) (R = 10,000) due to high СHCl/СAs,Se ratio. Se, Sn, Ga, Bi, Te, Sb, Ge, Cd, Tl and Pb in hydrochloric acid leaching solutions can be determined by ICP-MS, and As, Se, Sn, Bi, Te and Sb by HG-ICP-OES. Main matrix elements - Co, Ni, Fe, Cu – don't affect the signal of analytes in case of ICP-MS method. The matrices of the sulfide ores and rocks were shown to significantly suppress the signals of the all elements using HG-ICP-OES techniques. To eliminate the influence of matrix components, the use of auxiliary reagents – 5% (m/V) KI and 0.5% (m/V) ascorbic acid C6H8O6 as well as 5% (m/V) KBr – has been proposed. Optimal conditions for obtaining the hydrides and for the determination of hydride-forming elements by HG-ICP-OES were established. Addition of KI and ascorbic acid mixture allows the determination of As, Sn, Bi and Sb. Six elements - Se, Te, As, Sn, Bi and Sb could be determined in the presence of 5% (m/V) KBr. The Сmin values for the determination of these elements by ICP-MS and HG-ICP-OES methods are comparable and vary between 0.01 and 0.02 μg g−1 for As, Se, Sb and Bi, and between 0.05 and 0.1 μg g−1 for Sn and Te.

中文翻译：

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HG-ICP-OES 和 ICP-MS 测定含硫化物岩石中的亲硫元素

摘要 采用电感耦合等离子体质谱（ICP-MS）和电感耦合等离子体发射光谱预氢化物发生（HG-ICP-OES）技术测定不同样品预处理后的含硫化物岩石中的亲硫元素。由于 СHCl/СAs,Se 比值高，盐酸浸出溶液中的 As 和 Se 既不能通过四重 MS 和校正方程测定，也不能通过高分辨率 (HR-MS) (R = 10,000) 测定。ICP-MS 可测定盐酸浸出液中的 Se、Sn、Ga、Bi、Te、Sb、Ge、Cd、Tl 和 Pb，HG-ICP-OES 可测定 As、Se、Sn、Bi、Te 和 Sb . 主要基质元素 - Co、Ni、Fe、Cu - 在 ICP-MS 方法中不影响分析物的信号。使用 HG-ICP-OES 技术，硫化物矿石和岩石的基质显示出显着抑制所有元素的信号。为了消除基质成分的影响，建议使用辅助试剂——5% (m/V) KI 和 0.5% (m/V) 抗坏血酸 C6H8O6 以及 5% (m/V) KBr。建立了获得氢化物和通过 HG-ICP-OES 测定氢化物形成元素的最佳条件。添加 KI 和抗坏血酸混合物可以测定 As、Sn、Bi 和 Sb。六种元素 - Se、Te、As、Sn、Bi 和 Sb 可以在 5% (m/V) KBr 存在的情况下进行测定。通过 ICP-MS 和 HG-ICP-OES 方法测定这些元素的 Сmin 值具有可比性，对于 As、Se、Sb 和 Bi，在 0.01 和 0.02 μg g-1 之间变化，在 0.05 和 0.1 μg g-1 之间变化对于 Sn 和 Te。