Evaluation of measurement uncertainty components associated with the results of complexometric determination of calcium in ceramic raw materials using EDTA

Basak, Samarendra; Kundu, Dipali

doi:10.1007/s00769-013-0979-6

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…Basak and Kundu, 2013 [125] Target measurement uncertainty as a tool for validation of uncertainties estimated by different approaches: determination of total hardness in drinking and natural waters.…”

Section: Et Al 2002 [122]mentioning

confidence: 99%

A Practical Way to ISO/GUM Measurement Uncertainty for Analytical Assays Including In-House Validation Data

González¹,

Herrador²,

GarcíaAsuero³

et al. 2018

Quality Control in Laboratory

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In this contribution, we outline the estimation of measurement uncertainty of analytical assays in a practical way, according to the so-called reconciliation paradigm, by considering the heritance of uncertainties according to the ISO Guide to the expression of uncertainty in measurement (ISO/GUM) approach and the accuracy (bias and precision) study coming from the in-house method validation. A cause and effect analysis is performed by using the Ishikawa diagram or fishbone plot, consisting of a hierarchical structure reaching a final outcome that is the analytical result. The procedure is illustrated with a case study. This procedure may be very suitable for processing data in accreditation of routine assays.

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Section: Et Al 2002 [122]mentioning

confidence: 99%

A Practical Way to ISO/GUM Measurement Uncertainty for Analytical Assays Including In-House Validation Data

González¹,

Herrador²,

GarcíaAsuero³

et al. 2018

Quality Control in Laboratory

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Measurement uncertainty assessment of magnesium trisilicate column for determination of Sudan colorants in food by HPLC using C8 column

Chen

Cheng

et al. 2016

J. Huazhong Univ. Sci. Technol. [Med. Sci.]

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This study aimed to conduct measurement uncertainty assessment of a new method for determination of Sudan colorants (Sudan I, II, III and IV) in food by high performance liquid chromatography (HPLC). Samples were extracted with organic solvents (hexane, 20% acetone) and first purified by magnesium trisilicate (2MgO·3SiO2). The Sudan colorants (Sudan I-IV) were also initially separated on C8 by gradient elution using acetonitrile and 0.1% (v/v) formic acid aqueous solution as the mobile phases and detected with diode-array detector (DAD). The uncertainty of mathematical model of Sudan I, II, III and IV is based on EURACHEM guidelines. The sources and components of uncertainty were calculated. The experiment gave a good linear relationship over the concentration from 0.4 to 4.0 μg/mL and spiked recoveries were from 74.0% to 97.5%. The limits of determination (LOD) were 48, 61, 36, 58 μg/kg for the four analytes, respectively. The total uncertainty of Sudan colorants (Sudan I, II, III and IV) was 810±30.8, 790±28.4, 750±27.0, 730±50.0 μg/kg, respectively. The recovery uncertainty was the most significant factor contributing to the total uncertainty. The developed method is simple, rapid, and highly sensitive. It can be used for the determination of trace Sudan dyes in food samples. The sources of uncertainty have been identified and uncertainty components have been simplified and considered.

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Measurement Uncertainty Assessment for Determination of Allura Red in Puffed Food by HPLC

et al. 2018

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This study aimed to assess the measurement uncertainty of a new method for determination of allura redin food by high performance liquid chromatography (HPLC). The uncertainty of mathematical model of allura red is based on Europe for Analytical Chemistry(EURACHEM) guidelines. The sources and components of uncertainty were calculated, including recovery, working solution, sample mass, final volume, response of standard solution, response of sample solution. The expanded uncertainty was 0.0024 (k=2). Uncertainty of working solution was the most significant factor contributing to the total uncertainty, accounting for 86.2%. The uncertainty of volume accounted for the minimum at 0.025%. The developed method is simple and accurate, which can be used for the determination of allura redin puffed samples.

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Evaluation of measurement uncertainty components associated with the results of complexometric determination of calcium in ceramic raw materials using EDTA

Cited by 5 publications

References 14 publications

A Practical Way to ISO/GUM Measurement Uncertainty for Analytical Assays Including In-House Validation Data

A Practical Way to ISO/GUM Measurement Uncertainty for Analytical Assays Including In-House Validation Data

Measurement uncertainty assessment of magnesium trisilicate column for determination of Sudan colorants in food by HPLC using C8 column

Measurement Uncertainty Assessment for Determination of Allura Red in Puffed Food by HPLC

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