ICP-QMS for lead isotopic analysis: Method development and key parameters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10510531" target="_blank" >RIV/00216208:11310/25:10510531 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/25:00141957
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=.3yxnM.jMa" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=.3yxnM.jMa</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.sab.2025.107277" target="_blank" >10.1016/j.sab.2025.107277</a>
Alternative languages
Result language
angličtina
Original language name
ICP-QMS for lead isotopic analysis: Method development and key parameters
Original language description
This technical note demonstrates the potential of inductively coupled plasma mass spectrometry with a quadrupole analyzer (ICP-QMS) for lead isotope ratio determination offering a step-by-step guide for laboratories aiming to achieve reliable precision without access to multi-collector instrumentation. Key instrumental parameters such as dwell time, number of replicates, sweeps per replicate, pump speed and nebulizer gas flow were systematically optimized. Special attention was given to the influence of detector mode selection (Auto vs. Analog) and its impact on low-abundance isotopes such as (204)Pb. The optimized procedure yielded precision of 0.08-0.10 % RSD for (206)Pb/(207)Pb and (208)Pb/(206)Pb ratios and 0.10-0.12 % RSD for (206)Pb/(204)Pb as a minimum, which is sufficient for selected applications. The optimized method was validated using NIST SRM 981 and archaeological metal samples previously analyzed by MC-ICP-MS. Results show good agreement in isotope ratios between ICP-QMS and MC-ICP-MS, with deviations expressed as delta values <0.3 % in most cases, for Pb-206/Pb-204 < 1.5 %. Although the method does not aim to replace MC-ICP-MS for high-precision work, it offers a robust and cost-effective alternative for applications requiring moderate precision, especially in laboratories without access to multi-collector instrumentation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Spectrochimica Acta - Part B: Atomic Spectroscopy
ISSN
0584-8547
e-ISSN
1873-3565
Volume of the periodical
232
Issue of the periodical within the volume
October
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
107277
UT code for WoS article
001553114000001
EID of the result in the Scopus database
2-s2.0-105011393117