Optimization of sample injection in TS-FF-AAS for determination of trace elements

Carrone, Guillermo Alejandro; Morzan, Ezequiel Martín; Candal, Roberto; Tudino, Mabel Beatríz

doi:10.1016/j.microc.2020.105608

Cited by 1 publication

(1 citation statement)

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“…Due to its high sensitivity, low detection limit, and broad linear range, inductively coupled plasma mass spectrometry (ICP-MS) has become one of the most competitive and promising methods for trace and ultratrace REE analysis in geological materials [7,[23][24][25] and is widely used in trace element testing compared to other analytical techniques like neutron activation analysis [26][27][28][29][30], X-ray fluorescence spectrometry [31][32][33], laser-induced breakdown spectrometry [34][35][36][37], atomic absorption spectroscopy [38][39][40][41], and inductively coupled plasma atomic emission spectrometry [42][43][44][45]. There have been many reports of concentrations of trace elements in coals that were successfully determined by ICP-MS [46][47][48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

Precise Determination of Eu Concentration in Coal and Sedimentary Rock Samples Using High-Resolution Inductively Coupled Plasma Mass Spectrometry (HR-ICP-MS)

Zhao,

Liu,

Jia

et al. 2023

Minerals

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Europium (Eu) in coal and sedimentary rocks has important mineral resource potential as well as being a crucial parameter in geochemical studies that can represent changes in the depositional environment during coal deposition and identify the depositional source region. Therefore, it is essential to realize the precise measurement of Eu in coal as this could be a useful parameter for paleoenvironmental reconstruction studies and the exploration of mineral resources. During inductively coupled plasma mass spectrometry (ICP-MS) analysis, polyatomic ions of Ba may interfere with Eu, causing the observed value to be higher than the actual value. This paper develops a new approach for Eu determination by using a high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS). The mass spectral interference and correction of Eu in the coal and sedimentary rock samples at low, medium, and high resolutions were investigated. The results showed that in the high-resolution mode (resolution = 10,000 amu), the interference of polyatomic ions of Ba could be distinguished from Eu; hence, Eu was determined under this circumstance. Under the optimal experimental circumstances, the detection limit was 0.006 μg/mL, the relative standard deviation was 0.80%–1.22%, and the linear correlation coefficient of the standard curve was over 0.9999. The recoveries of the 103Rh internal standard solution ranged from 94.41% to 100.10%. This method was verified using standard reference materials and selected samples, which demonstrated its high sensitivity, accuracy, and reliability, and a low detection limit, making it appropriate for detecting Eu in samples of coal and sedimentary rocks.

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