Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry
This work presents the long-term determination accuracy study of ICP-QMS for rare earth elements (REEs) in geological matrices. Following high-pressure closed acidic decomposition, REEs are measured repetitively across seven months by ICP-QMS. Under optimum experimental conditions (including spray c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/2/290 |
| _version_ | 1797414526363107328 |
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| author | Xijuan Tan Minwu Liu Ke He |
| author_facet | Xijuan Tan Minwu Liu Ke He |
| author_sort | Xijuan Tan |
| collection | DOAJ |
| description | This work presents the long-term determination accuracy study of ICP-QMS for rare earth elements (REEs) in geological matrices. Following high-pressure closed acidic decomposition, REEs are measured repetitively across seven months by ICP-QMS. Under optimum experimental conditions (including spray chamber temperature, gas flow rate, sampling depth, etc.), the REE contents in geological standard materials from basic (basalt BCR-2 and BE-N) to intermediate (andesite AGV-2) and up to acidic (granite GSR-1) show good agreement with the certified values, giving relative errors below 10%. Here, the influence of two storage materials (perfluoroalkoxy PFA and polypropylene PP) on the long-term determination accuracy of REEs has also been monitored. It is found that the relative errors of REEs using a PFA container range from −6.6 to 6.3% (RSDs < 6.0%), while that using a PP container are within −4.0 to 3.9% (RSDs < 4.6%). By using PP material as a solution storage container, the accuracy of REEs quantification in a series of real geological samples are checked, showing the RSDs of less than 5.0%. This work first clarifies the long-term stability of REEs quantification by ICP-QMS covering two types of storage materials, confirming the reasonability of PP material as a daily storage container in terms of higher data precision and lower cost. |
| first_indexed | 2024-03-09T05:34:35Z |
| format | Article |
| id | doaj.art-8ae605d48a8b43cabec9e7b5637776d7 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T05:34:35Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-8ae605d48a8b43cabec9e7b5637776d72023-12-03T12:30:20ZengMDPI AGMolecules1420-30492021-01-0126229010.3390/molecules26020290Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass SpectrometryXijuan Tan0Minwu Liu1Ke He2Laboratory of Mineralization and Dynamics, Chang’an University, 126 Yanta Road, Xi’an 710054, ChinaLaboratory of Mineralization and Dynamics, Chang’an University, 126 Yanta Road, Xi’an 710054, ChinaLaboratory of Mineralization and Dynamics, Chang’an University, 126 Yanta Road, Xi’an 710054, ChinaThis work presents the long-term determination accuracy study of ICP-QMS for rare earth elements (REEs) in geological matrices. Following high-pressure closed acidic decomposition, REEs are measured repetitively across seven months by ICP-QMS. Under optimum experimental conditions (including spray chamber temperature, gas flow rate, sampling depth, etc.), the REE contents in geological standard materials from basic (basalt BCR-2 and BE-N) to intermediate (andesite AGV-2) and up to acidic (granite GSR-1) show good agreement with the certified values, giving relative errors below 10%. Here, the influence of two storage materials (perfluoroalkoxy PFA and polypropylene PP) on the long-term determination accuracy of REEs has also been monitored. It is found that the relative errors of REEs using a PFA container range from −6.6 to 6.3% (RSDs < 6.0%), while that using a PP container are within −4.0 to 3.9% (RSDs < 4.6%). By using PP material as a solution storage container, the accuracy of REEs quantification in a series of real geological samples are checked, showing the RSDs of less than 5.0%. This work first clarifies the long-term stability of REEs quantification by ICP-QMS covering two types of storage materials, confirming the reasonability of PP material as a daily storage container in terms of higher data precision and lower cost.https://www.mdpi.com/1420-3049/26/2/290REE determination accuracylong-term stabilityICP-QMSgeological samples |
| spellingShingle | Xijuan Tan Minwu Liu Ke He Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry Molecules REE determination accuracy long-term stability ICP-QMS geological samples |
| title | Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry |
| title_full | Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry |
| title_fullStr | Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry |
| title_full_unstemmed | Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry |
| title_short | Study of Long-Term Determination Accuracy for REEs in Geological Samples by Inductively Coupled Plasma Quadrupole Mass Spectrometry |
| title_sort | study of long term determination accuracy for rees in geological samples by inductively coupled plasma quadrupole mass spectrometry |
| topic | REE determination accuracy long-term stability ICP-QMS geological samples |
| url | https://www.mdpi.com/1420-3049/26/2/290 |
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