FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1991435864> ?p ?o ?g. }

• W1991435864 endingPage "160" @default.
• W1991435864 startingPage "141" @default.
• W1991435864 abstract "In the present paper, we further examine the optimum conditions for rapid, precise and accurate determination of 234U/238U ratios in geological materials by multiple collector (magnetic-sector) inductively coupled plasma mass spectrometry (MC-ICP-MS). In our experiments, isotopic measurements were performed on a Micromass IsoProbe™ instrument, using Faraday collectors in static mode only. Unlike the ion counting system coupled with an energy filter, this technique eliminates the difficulty of proper calibration of the Daly/Faraday gain ratio. On the other hand, since our Micromass instrument has a poor abundance sensitivity (the proportion of the 238U ion beam measured at mass 237 is ∼25 ppm), the major issue to be addressed is the tail correction. For this purpose, we have developed a tail correction method slightly modified from Thirlwall [J. Anal. At. Spectrom. 16 (2001) 1121]. This method is based on correction of the actual tail contribution under each peak, as assessed by the tail shape measurements on mono-isotopic ion beams, instead of the usual half-mass zeroes baseline estimation. Our approach enabled us to correct for the large offset that can be observed on isotopic data when tail correction is done by means of linear interpolation between half-mass zeroes, and showed that this latter tail correction method results in nearly 3% underestimation of 234U/238U ratios on the GEOTOP IsoProbe™ for material at secular equilibrium. A 236U–233U double spike was employed to correct for mass discrimination bias. Using an Aridus™ micro-concentric, desolvating nebulizer sample introducing system, a minimum of 200 ng of sample-U was consumed to carry out a precise 234U/238U analysis, thereby allowing a 234U signal of ∼4–5 mV to be monitored for 50 measurement cycles of 5 s each. This time-consuming, 10-min procedure allowed us to obtain an external reproducibility of 0.8‰ (2σ) for isotopic measurements of the NBL-112a standard solution. Replicate measurements of this reference material yielded a mean δ234U value of −36.42±0.80‰ (2σ, n=19), which is highly consistent with values reported by other laboratories. The total reproducibility, including both chemical separation and spectrometric measurement, was assessed using geological samples (a coral and a carbonate rock); the long-term reproducibility obtained was about 1.3‰ (2σ)." @default.
• W1991435864 created "2016-06-24" @default.
• W1991435864 creator A5040096418 @default.
• W1991435864 creator A5054403635 @default.
• W1991435864 creator A5079412095 @default.
• W1991435864 creator A5091704505 @default.
• W1991435864 date "2003-11-01" @default.
• W1991435864 modified "2023-10-16" @default.
• W1991435864 title "Further investigations on optimized tail correction and high-precision measurement of uranium isotopic ratios using multi-collector ICP-MS" @default.
• W1991435864 cites W1511524149 @default.
• W1991435864 cites W1964197575 @default.
• W1991435864 cites W1965323328 @default.
• W1991435864 cites W1968905104 @default.
• W1991435864 cites W1970149348 @default.
• W1991435864 cites W1972954480 @default.
• W1991435864 cites W1976003864 @default.
• W1991435864 cites W1992708732 @default.
• W1991435864 cites W1995205939 @default.
• W1991435864 cites W2002547147 @default.
• W1991435864 cites W2007102385 @default.
• W1991435864 cites W2008008801 @default.
• W1991435864 cites W2008514241 @default.
• W1991435864 cites W2008670387 @default.
• W1991435864 cites W2012787657 @default.
• W1991435864 cites W2014696068 @default.
• W1991435864 cites W2019407001 @default.
• W1991435864 cites W2024784417 @default.
• W1991435864 cites W2025460335 @default.
• W1991435864 cites W2027949041 @default.
• W1991435864 cites W2031194081 @default.
• W1991435864 cites W2031628308 @default.
• W1991435864 cites W2033566601 @default.
• W1991435864 cites W2037506806 @default.
• W1991435864 cites W2037538320 @default.
• W1991435864 cites W2043969358 @default.
• W1991435864 cites W2051039802 @default.
• W1991435864 cites W2055058756 @default.
• W1991435864 cites W2056427537 @default.
• W1991435864 cites W2059620348 @default.
• W1991435864 cites W2062047207 @default.
• W1991435864 cites W2062306740 @default.
• W1991435864 cites W2094168809 @default.
• W1991435864 cites W2094480600 @default.
• W1991435864 cites W2106398178 @default.
• W1991435864 cites W2123649057 @default.
• W1991435864 cites W2131740309 @default.
• W1991435864 cites W2148757781 @default.
• W1991435864 cites W2161704024 @default.
• W1991435864 cites W2161721809 @default.
• W1991435864 cites W2169546861 @default.
• W1991435864 doi "https://doi.org/10.1016/s0009-2541(03)00226-2" @default.
• W1991435864 hasPublicationYear "2003" @default.
• W1991435864 type Work @default.
• W1991435864 sameAs 1991435864 @default.
• W1991435864 citedByCount "35" @default.
• W1991435864 countsByYear W19914358642012 @default.
• W1991435864 countsByYear W19914358642013 @default.
• W1991435864 countsByYear W19914358642015 @default.
• W1991435864 countsByYear W19914358642016 @default.
• W1991435864 countsByYear W19914358642017 @default.
• W1991435864 countsByYear W19914358642018 @default.
• W1991435864 countsByYear W19914358642019 @default.
• W1991435864 countsByYear W19914358642022 @default.
• W1991435864 crossrefType "journal-article" @default.
• W1991435864 hasAuthorship W1991435864A5040096418 @default.
• W1991435864 hasAuthorship W1991435864A5054403635 @default.
• W1991435864 hasAuthorship W1991435864A5079412095 @default.
• W1991435864 hasAuthorship W1991435864A5091704505 @default.
• W1991435864 hasConcept C105795698 @default.
• W1991435864 hasConcept C108948954 @default.
• W1991435864 hasConcept C113196181 @default.
• W1991435864 hasConcept C115260700 @default.
• W1991435864 hasConcept C120665830 @default.
• W1991435864 hasConcept C121332964 @default.
• W1991435864 hasConcept C145148216 @default.
• W1991435864 hasConcept C162356407 @default.
• W1991435864 hasConcept C165697059 @default.
• W1991435864 hasConcept C165838908 @default.
• W1991435864 hasConcept C168834538 @default.
• W1991435864 hasConcept C175291020 @default.
• W1991435864 hasConcept C178790620 @default.
• W1991435864 hasConcept C180541544 @default.
• W1991435864 hasConcept C185544564 @default.
• W1991435864 hasConcept C185592680 @default.
• W1991435864 hasConcept C199360897 @default.
• W1991435864 hasConcept C202799725 @default.
• W1991435864 hasConcept C28271814 @default.
• W1991435864 hasConcept C30475298 @default.
• W1991435864 hasConcept C33923547 @default.
• W1991435864 hasConcept C41008148 @default.
• W1991435864 hasConcept C43617362 @default.
• W1991435864 hasConcept C50774322 @default.
• W1991435864 hasConcept C555451288 @default.
• W1991435864 hasConcept C62520636 @default.
• W1991435864 hasConceptScore W1991435864C105795698 @default.
• W1991435864 hasConceptScore W1991435864C108948954 @default.
• W1991435864 hasConceptScore W1991435864C113196181 @default.
• W1991435864 hasConceptScore W1991435864C115260700 @default.

• next