Evaluation of measurement uncertainty in volumetric operations: the tolerance-based approach and the actual performance-based approach

Kadis, Rouvim

doi:10.1016/j.talanta.2004.02.005

Cited by 15 publications

(4 citation statements)

References 7 publications

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“…Recently, the EURACHEM/CITAC-Guide on uncertainty evaluation has been applied to various analytical domains. These include ICP-MS, IDMS using MC-ICP-MS, 6 purge and trap coupled with GC-MS, 7 HPLC, 8 AAS, 9 neutron activation analysis, 10 mass determination using electronic balances, 11 volumetric operations, 12 and potentiometric titration, 13 etc. The studies of ICP-MS (single or multi-collector) measurement uncertainty focused especially on the dead time correction for the electron multiplier detector, 14 trace analysis using isotope-dilution ICP-MS, 15 coupling ion chromatography with Q-ICP-MS for palladium and platinum direct determination, 16 and species specific isotope dilution analysis for the determination of methylmercury using HPLC-ICP-(Q)MS and multi-collector ICP-MS. 17 As one of the important methods for direct solid analysis, laser ablation inductively coupled plasma mass spectrozmetry (LA-ICP-MS) has become a well established microanalytical technique for in situ multi-elemental and isotopic analysis with successful applications in geology, biological and environmental sciences, and chemistry.…”

Section: Introductionmentioning

confidence: 99%

The uncertainty budget of the multi-element analysis of glasses using LA-ICP-MS

Luo

Gao

Longerich

et al. 2007

J. Anal. At. Spectrom.

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Section: Introductionmentioning

confidence: 99%

The uncertainty budget of the multi-element analysis of glasses using LA-ICP-MS

Luo

Gao

Longerich

et al. 2007

J. Anal. At. Spectrom.

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“…Kadis gave a thorough discussion of the topic [7] and noted in the Conclusions: ''It is essential that normal variations in manipulating and reading volumetric glassware are understood to be included in the stated tolerance, and thus no additional allowance, except the temperature effects, is needed for obtaining the total uncertainty.'' We fully agree with this statement but our proposed approach does not assume a triangular distribution for the tolerance data listed in the norms (as does Kadis).…”

Section: Discussionmentioning

confidence: 99%

Calibration, handling repeatability, and the Maximum Permissible Error of single-volume glass instruments

Meyer

Pfohl²,

Winter

2010

Accred Qual Assur

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The influence quantities for the uncertainty of a volumetric operation with glass instruments are calibration, repeatability and temperature. In the literature, measurement uncertainty budgets can be found, which count all three quantities separately although calibration and repeatability are merged in tabulated data to the Maximum Permissible Error. We propose that this error should be handled as a rectangular distribution in order to get a standard uncertainty. For the daily use in an analytical laboratory, the combined standard uncertainty of a volumetric operation is thus calculated from the Maximum Permissible Error plus the uncertainty of the temperature influence. Keywords Glass volumetric instruments Á Maximum Permissible Error Á Measurement uncertainty Á Measuring flasks Á Pipettes Á Single-volume glass instruments Á Uncertainty of volumetric operations

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“…GUM was adopted for analytical chemistry by EURACHEM. 5 The measurement uncertainty estimation in quantitative chemical analysis was applied in various studies [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] and it can be considered as common practice. It is also a requisite for the implementation of ISO/IEC International Standard 17025 (ref.…”

Section: Introductionmentioning

confidence: 99%