The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES
When determining elements in geochemical samples, the sample is usually decomposed by mixed acid (hydrochloric acid-hydrofluoric acid-perchloric acid) by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). However, the differe...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Science Press, PR China
2017-11-01
|
| Series: | Yankuang ceshi |
| Subjects: | |
| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201704130055 |
| _version_ | 1811168685776175104 |
|---|---|
| author | LUO Yan YANG Qiao |
| author_facet | LUO Yan YANG Qiao |
| author_sort | LUO Yan |
| collection | DOAJ |
| description | When determining elements in geochemical samples, the sample is usually decomposed by mixed acid (hydrochloric acid-hydrofluoric acid-perchloric acid) by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). However, the different proportions of mixed acid have a great influence on sample decomposition, resulting in lower analytical results of chromium, manganese, iron, aluminum, titanium and parts of rare earth elements, and bad analytical precision. In this study, samples are digested by mixed solution of inverse aqua regia, hydrofluoric acid, and perchloric acid, and then extracted by inverse aqua regia. This improves the decomposition of the above elements, especially for samples with high contents of these elements. Results show that the relative standard deviation (n=6) ranges from 0.34% to 4.02% for repeated determination of national level standard materials when 0.1 g sample was digested by 8 mL inverse aqua regia, 6 mL hydrofluoric acid, and 3 mL perchloric acid, and then extracted by 8 mL inverse aqua regia. The accuracy and precision of this method can satisfy the quality control standard requirements of the geology laboratory. This method establishes a fast and accurate approach to batch determination of multielements in geochemical samples. |
| first_indexed | 2024-04-10T16:29:55Z |
| format | Article |
| id | doaj.art-2ffa96214d384855ad5c7e24bf235940 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:29:55Z |
| publishDate | 2017-11-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-2ffa96214d384855ad5c7e24bf2359402023-02-09T00:48:23ZengScience Press, PR ChinaYankuang ceshi0254-53572017-11-0136658759310.15898/j.cnki.11-2131/td.201704130055ykcs-36-6-587The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OESLUO Yan0YANG Qiao1Analysis & Testing Center of the No. 605 Team, Sichuan Metallurgy Geological Survey, Meishan 610860, ChinaAnalysis & Testing Center of the No. 605 Team, Sichuan Metallurgy Geological Survey, Meishan 610860, ChinaWhen determining elements in geochemical samples, the sample is usually decomposed by mixed acid (hydrochloric acid-hydrofluoric acid-perchloric acid) by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). However, the different proportions of mixed acid have a great influence on sample decomposition, resulting in lower analytical results of chromium, manganese, iron, aluminum, titanium and parts of rare earth elements, and bad analytical precision. In this study, samples are digested by mixed solution of inverse aqua regia, hydrofluoric acid, and perchloric acid, and then extracted by inverse aqua regia. This improves the decomposition of the above elements, especially for samples with high contents of these elements. Results show that the relative standard deviation (n=6) ranges from 0.34% to 4.02% for repeated determination of national level standard materials when 0.1 g sample was digested by 8 mL inverse aqua regia, 6 mL hydrofluoric acid, and 3 mL perchloric acid, and then extracted by 8 mL inverse aqua regia. The accuracy and precision of this method can satisfy the quality control standard requirements of the geology laboratory. This method establishes a fast and accurate approach to batch determination of multielements in geochemical samples.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201704130055geochemical samplesinverse aqua regia extractionperchloratehigh temperature action timefluoride in processinductively coupled plasma-mass spectrometry/optical emission spectrometry |
| spellingShingle | LUO Yan YANG Qiao The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES Yankuang ceshi geochemical samples inverse aqua regia extraction perchlorate high temperature action time fluoride in process inductively coupled plasma-mass spectrometry/optical emission spectrometry |
| title | The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES |
| title_full | The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES |
| title_fullStr | The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES |
| title_full_unstemmed | The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES |
| title_short | The Effect of Mixed Acid Ratio on the Determination of Multielements in Geochemical Samples by ICP-MS/OES |
| title_sort | effect of mixed acid ratio on the determination of multielements in geochemical samples by icp ms oes |
| topic | geochemical samples inverse aqua regia extraction perchlorate high temperature action time fluoride in process inductively coupled plasma-mass spectrometry/optical emission spectrometry |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.201704130055 |
| work_keys_str_mv | AT luoyan theeffectofmixedacidratioonthedeterminationofmultielementsingeochemicalsamplesbyicpmsoes AT yangqiao theeffectofmixedacidratioonthedeterminationofmultielementsingeochemicalsamplesbyicpmsoes AT luoyan effectofmixedacidratioonthedeterminationofmultielementsingeochemicalsamplesbyicpmsoes AT yangqiao effectofmixedacidratioonthedeterminationofmultielementsingeochemicalsamplesbyicpmsoes |