Fast screening of gold in rock samples using polyurethane foam extraction and inductively coupled plasma mass spectrometry determination

IF 1.9 Q2 MULTIDISCIPLINARY SCIENCES MethodsX Pub Date : 2025-06-01 Epub Date: 2025-01-14 DOI:10.1016/j.mex.2025.103170

Jalal Hassan , Naeemeh Zari , Mohammad-Hadi Karbasi

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Abstract

In this work, the volume of sample solution and concentration of gold was optimized for extraction with foam in dimensions (1 × 1 × 1) and then was used for extraction from soil samples. The results showed that the proposed technique has a good analytical efficiency compared to the standard fire assay method and the accuracy of work is in the range of 74–125 %. The equation of linear calibration curve was obtained with regression coefficient better than 0.9997, and the detection and quantification limit of the gold in aqueous and soil sample obtained 0.25 and 0.8 µg kg ⁻¹, respectively.

•
This method is inexpensive and fast for determination of gold in various samples.
•
This method has high thought of sample determination.
•
This method is green chemistry method.

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用聚氨酯泡沫萃取和电感耦合等离子体质谱测定快速筛选岩石样品中的金。

本工作对样品溶液的体积和金的浓度进行了优化，以尺寸为（1 × 1 × 1）的泡沫提取金，然后将其用于土壤样品的提取。结果表明，与标准火法相比，该方法具有良好的分析效率，工作准确度在74 ~ 125%之间。得到回归系数大于0.9997的线性校准曲线方程，水样和土样中金的检出定量限分别为0.25和0.8µg kg -1。该方法价格低廉，快速测定各种样品中的金。•该方法具有较高的样品测定思想。•本方法为绿色化学方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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