Boron element is widely distributed in different geologic bodies, and there are important geo-chemical applications in earth science. Halite is a common mineral found in sediment basin. However there is no good method to accurately measure the boron content in halite, which is mainly because Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) and Inductively Coupled Plasma Mass Spectrometer (ICP-MS) are limited by the high salt matrix interference and the instrument detection limit. Thus enriching the boron element and removing the matrix interference are necessary before the measuring. In this paper, Amberlite IRA 743 boron-specific resin was applied to enrich the boron element and remove most of the high-salt matrix. The strong acid cation resin (Dowex 50 W×8, 200-400 mesh, USA) and weak-base anion resin (Ion Exchanger II, Germany) were mixed with equal volume, which could remove the foreign ions completely: meanwhile, the relative content of boron in the solution reached above 98%, and the recoveries ranged from 97.8% to 104%. 208.900 nm was chosen as the detection wavelength for ICP-OES, and the detection identification and quantification limits were 0.006 mg·L⁻¹ and 0.02 mg·L⁻¹, respectively. ¹¹B was chosen as the measuring element for ICP-MS, and the detection identification and quantification limits were severally 0.036 mg·L⁻¹ and 0.12 mg·L⁻¹. The relative standard deviations ranged from 1.4% to 3.4% through six replicates under different salinities. Therefore, the process could be regarded as a feasible method to measure boron content in halite by ICP-OES and ICP-MS.

中文翻译：

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ICP-OES和ICP-MS准确测定卤石中的硼含量。

硼元素广泛分布在不同的地质体中，在地球科学中有重要的地球化学应用。Halite是沉积盆地中常见的矿物。但是，目前尚没有一种很好的方法来准确测量岩盐中的硼含量，这主要是因为电感耦合等离子体发射光谱仪（ICP-OES）和电感耦合等离子体质谱仪（ICP-MS）受高盐基质干扰和仪器检测极限。因此，在测量之前必须富集硼元素并消除基体干扰。在本文中，使用Amberlite IRA 743硼专用树脂来富集硼元素并去除大部分高盐基质。强酸阳离子树脂（Dowex 50 W×8，200-400目，美国）和弱碱阴离子树脂（离子交换剂II，德国）以等体积混合，可以完全去除外来离子：同时，溶液中硼的相对含量达到98％以上，回收率在97.8％至104％之间。ICP-OES的检测波长为208.900 nm，检测鉴定和定量限为0.006 mg·L^-1和0.02 mg·L ^-1。选择¹¹ B作为ICP-MS的测量元素，检测鉴定和定量限分别为0.036 mg·L ^-1和0.12 mg·L ^-1。在不同盐度下重复六次，相对标准偏差范围为1.4％至3.4％。因此，该方法被认为是通过ICP-OES和ICP-MS测定岩盐中硼含量的一种可行方法。