Investigation of HfO+ interference in the determination of platinum in a catalytic converter (cordierite) by inductively coupled plasma mass spectrometry

Parent, Magali; Vanhoe, Hans; Moëns, Luc; Dams, Richard

doi:10.1016/s0039-9140(96)02037-1

Cited by 45 publications

(19 citation statements)

References 20 publications

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“…However, we still measured a 1000 ng ml -1 Ba solution to correct any interference of BaO on Eu. The correction method is similar to that described in Parent et al (1997). Because of the low rate of REE oxide formation during this study (0.3% for PrO + /Pr + ), even the serious interference of PrO + on 157 Gd only caused about 3% bias (if uncorrected) for the determination of ultramafic samples (in this work, 158 Gd was selected), whereas, other interferences were < 2%.…”

Section: Interferencesmentioning

confidence: 99%

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)₃and Mg(OH)₂Coprecipitation

Zhou

Malpas

et al. 2005

Geostand Geoanalyt Res

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A simple and reliable method to separate rare earth elements (REE) from Mg, Fe, K, Na, Ca and Ba in ultramafic rocks has been developed, thereby concentrating their abundances. The sample (0.3 g) was digested with HF and HNO3 in a PTFE bomb, placed in a stainless steel container and, after drying, the insoluble residue was dissolved in 6 ml of 10% v/v HNO3. Following the addition of 50% triethanolamine and 30% m/v NaOH solution, the REE were precipitated along with Mg(OH)2, such that the majority of Fe, K and Na in the solution could be separated by centrifuging. The precipitate was dissolved in 1 ml HNO3 and a buffer solution of NH4Cl/NH4OH at pH = 9.0 was added to precipitate the REE along with any remaining Fe as Fe(OH)3, and so achieve separation from Mg, Ca and Ba, which remained in the solution. In this way, REE could be separated from major elements and were concentrated by a factor of about 60. The recovery of REE was more than 95% using this method. Four ultramafic rock reference materials, PCC‐1 (USGS), JP‐1 (GSJ), DZE‐1, DZE‐2 (IGGE) and one new proficiency testing sample GeoPT12 (GAS Serpentinite) were analysed by ICP‐MS using indium as an internal standard. The quantitation limits were about 0.02–0.2 ng g−1. Smooth chondrite‐normalised REE patterns were obtained with a precision for REE determination of about 2–9%.

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Section: Interferencesmentioning

confidence: 99%

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)₃and Mg(OH)₂Coprecipitation

Zhou

Malpas

et al. 2005

Geostand Geoanalyt Res

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“…Unexpectedly, Pt with ppb levels is found to be enriched in Py-l. Since the concentrations of Th, U and REE (high field strength elements, as is Hf) are much higher in the siderite or magnetite matrix than in the Py-l vein, the higher 195 Pt + we measured was unlikely to be caused by interference from 179 Hf 16 O + [37]. Further study is required to confirm whether the Pt is real or the result of interference.…”

Section: Mapping Of Trace Elements In Pyritementioning

confidence: 82%

Mapping of Sulfur Isotopes and Trace Elements in Sulfides by LA-(MC)-ICP-MS: Potential Analytical Problems, Improvements and Implications

et al. 2016

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Abstract:Constraints on accurate quantitative trace element and sulfur (S) isotope analysis of sulfide minerals, especially pyrite, by laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) remain imperfectly understood at the present time. Mapping of S isotope distributions within a complex sample containing several minerals requires an evaluation of the matrix effects and accuracy. Here, we apply LA-Q(quadrupole)-ICP-MS and LA-MC(multiple collector)-ICP-MS methods to analyze trace elements and S isotopes in sulfides. Spot analysis of S isotopes was conducted to evaluate the influence of matrix effects. The matrix effects from siderite and magnetite are deemed to be negligible in mapping analysis at the precision of this study. Both Fe and S were used as internal standard elements to normalize trace element concentrations in pyrite. Fe proved to be the better choice because the normalized counts per second ratio of trace elements with Fe is much more stable than if using S. A case study of a sulfide sample from the Chengmenshan Cu deposit, Jiangxi Province, South China, demonstrates the potential of combined S isotope and trace element mapping by LA-(MC)-ICP-MS. The results suggest that this deposit underwent multi-stage ore formation. Elements, including Au and Ag, were hosted in early-stage pyrite but were re-concentrated into multi-component sulfide assemblages during a late-stage hydrothermal event, which also led to crosscutting veins containing pyrite largely devoid of trace elements, except Se. Combining in situ S isotope and trace element analysis on the same sample represents a powerful tool for understanding ore-forming processes.

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“…Известны работы по математической коррекции наложений от оксидных ионов, в частности от ок-сидных ионов гафния на изотопы Pt [26]. Одна-ко трудности математической коррекции связаны с тем, что величина MO + /M + меняется от пробы к пробе, поэтому наилучший эффект дает химическое удаление Hf [26].…”

Section: результаты и их обсуждениеunclassified

“…Одна-ко трудности математической коррекции связаны с тем, что величина MO + /M + меняется от пробы к пробе, поэтому наилучший эффект дает химическое удаление Hf [26].…”

Section: результаты и их обсуждениеunclassified

Determination of platinum-group elements in rocks by ICP-MS with external calibration after cation exchange separation of matrix elements by KU-2-8 resin

Men’shikov¹,

Lozhkin²,

Iu.³

2016

АиК

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Поступила в редакцию 3 июня 2016 г., после исправления -7 июля 2016 г.Предложена методика определения элементов платиновой группы (ЭПГ) Ru, Rh, Pd, Ir, Pt и Re в геологических образцах в диапазоне концентраций от 0.1 нг/г до 10 мкг/г, а также Os в перидотитах на уровне нг/г методом масс-спектрометрии с индуктивно связанной плазмой с внешней градуировкой и без химического удаления Zr и Hf. Подготовка проб основана на их кислотной деструкции в открытых системах после обжига с последующим доплавлением нерастворимого остатка с NH 4 F и отделением матричных элементов на катионите КУ-2-8 (фирма Токем, Россия). Измерения выполнены на масс-спектрометре высокого разрешения Element 2 (Finnigan MAT, Германия). Правильность определения содержания ЭПГ на уровне мкг/г подтверждена сравнением полученных результатов с аттестованными значениями для двух государственных стандартных образцов (ГСО) руды пирротиновой сплошной РП-1 и руды сульфидной медно-никелевой Ж-3, а для содержания аналитов на уровне нг/г -ана-лизом международного образца сравнения перидотита OPY-1 (GeoPT-20), разрабатываемого Меж-дународной Ассоциацией Геоаналитиков (IAG). Значения пределов обнаружения, рассчитанные c учетом величины контрольного опыта и его стандартного отклонения (при переведении навески 1 г в 50 мл) составили: для Ru -0.13 нг/г, Rh -0.09 нг/г, Pd -1.4 нг/г, Re -0.07 нг/г, Os -0.02 нг/г, Ir -0.09 нг/г, Pt -1.0 нг/г. Определены концентрации Re в ГСО РП-1, Ж-3 и OPY-1.Ключевые слова: элементы платиновой группы, рений, масс-спектрометрия с индуктив-но связанной плазмой, хроматографическое разделение на катионите, ГСО РП-1, ГСО Ж-3, OPY-1. The analytical technique to determine platinum-group elements (PGEs) Ru, Rh, Pd, Ir, Pt and Re in the geological samples within 0.1 ng/g -10 μg/g range and Os on ng/g level in the ultramafic rocks by inductively coupled plasma mass-spectrometry with external calibration and without chemical removal of main interferences of Zr and Hf was proposed. The samples were prepared after their burning by acid decomposition in the open vessels, melting the insoluble residue with NH 4 F and with a subsequent cation exchange separation of PGEs from matrix elements by KU-2-8 resin (Russia). The measurements have been carried out using the high resolution mass-spectrometer Element 2 (Germany). The accuracy of the technique on μg/g level has been verified with reference materials: pyrrhotite ore RP-1 (Russia) and sulfide copper-nickel ore Zh-3 (Russia). In addition, the accuracy of the trace level (ng/g) has been verified by comparison of the results obtained in this study with those reported in the literature for international sample of comparison

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Investigation of HfO+ interference in the determination of platinum in a catalytic converter (cordierite) by inductively coupled plasma mass spectrometry

Cited by 45 publications

References 20 publications

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)₃and Mg(OH)₂Coprecipitation

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)₃and Mg(OH)₂Coprecipitation

Mapping of Sulfur Isotopes and Trace Elements in Sulfides by LA-(MC)-ICP-MS: Potential Analytical Problems, Improvements and Implications

Determination of platinum-group elements in rocks by ICP-MS with external calibration after cation exchange separation of matrix elements by KU-2-8 resin

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Investigation of HfO+ interference in the determination of platinum in a catalytic converter (cordierite) by inductively coupled plasma mass spectrometry

Cited by 45 publications

References 20 publications

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)3and Mg(OH)2Coprecipitation

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)3and Mg(OH)2Coprecipitation

Mapping of Sulfur Isotopes and Trace Elements in Sulfides by LA-(MC)-ICP-MS: Potential Analytical Problems, Improvements and Implications

Determination of platinum-group elements in rocks by ICP-MS with external calibration after cation exchange separation of matrix elements by KU-2-8 resin

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Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)₃and Mg(OH)₂Coprecipitation

Determination of Rare Earth Elements and Y in Ultramafic Rocks by ICP-MS After Preconcentration Using Fe(OH)₃and Mg(OH)₂Coprecipitation