Abstract
The application of inductively coupled plasma mass spectrometry (ICP-MS) is discussed in the case study of Precambrian mafic and ultramafic rocks of eastern Fennoscandian shield and their mineral components. Determination of bulk probe sample composition is reported to be possible using both the chemical digestion of samples and in situ laser ablation (LA-ICP-MS). The accuracy of the analyses was monitored by analyzing the USGS standard BHVO-2, Russian standard SGD-1A, and in-house reference materials. The composition and measurement results of in-house reference materials С-1412, KN1 and KK1 are presented. The effect of ablation modes on the accuracy and reproducibility of LA-ICP-MS elemental concentration analysis was explored for standards, minerals and rocks. The sensitivity of the method is indicated to depend not only on the physicochemical properties of the samples (melting temperature, volatility), but also on the ablation mode and analysis procedure.
Highlights
В статье обсуждается методика масс спектрометрии с индуктивно связанной плаз мой (ICP MS) на примере анализа результатов изучения докембрийских мафитов и ультрамафитов восточной части Фенноскандинавского щита и слагающих их ми нералов
The accuracy of the analyses was monitored by analyzing the USGS standard BHVO 2, Russian standard SGD 1A, and in house reference materials
The effect of ablation modes on the accuracy and reproducibility of LA inductively coupled plasma mass spectrometry (ICP MS) elemental concentration analysis was explored for standards, minerals and rocks
Summary
В статье обсуждается методика масс спектрометрии с индуктивно связанной плаз мой (ICP MS) на примере анализа результатов изучения докембрийских мафитов и ультрамафитов восточной части Фенноскандинавского щита и слагающих их ми нералов. 1. Результаты тестовых измерений химическо го состава стандартных образцов СГД 1А (серия из 14 измерений) и BHVO 2 (10 измерений) методом ICP MS на квадрупольном масс спектрометре X Series 2 (Thermo Fisher Scientific) в аналитической лаборатории ИГ КарНЦ РАН в 2013–2015 годах.
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