Measurement of Organic Impurities in Tetrabromobisphenol A and Evaluation of Measurement Uncertainty

LIU Si; PENG Zijuan; WAN Kangni; LI Penghui; SONG Shanjun

doi:10.12338/j.issn.2096-9015.2023.0087

Volume 67 Issue 6

Jun. 2023

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LIU Si, PENG Zijuan, WAN Kangni, LI Penghui, SONG Shanjun. Measurement of Organic Impurities in Tetrabromobisphenol A and Evaluation of Measurement Uncertainty[J]. Metrology Science and Technology, 2023, 67(6): 54-62. doi: 10.12338/j.issn.2096-9015.2023.0087

Citation:

LIU Si, PENG Zijuan, WAN Kangni, LI Penghui, SONG Shanjun. Measurement of Organic Impurities in Tetrabromobisphenol A and Evaluation of Measurement Uncertainty[J]. Metrology Science and Technology, 2023, 67(6): 54-62. doi: 10.12338/j.issn.2096-9015.2023.0087

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Measurement of Organic Impurities in Tetrabromobisphenol A and Evaluation of Measurement Uncertainty

doi: 10.12338/j.issn.2096-9015.2023.0087

LIU Si^{1, 2
,},
PENG Zijuan²,
WAN Kangni³,
LI Penghui¹,
SONG Shanjun^{2
,
,}

1.
Tianjin University of Technology, Tianjin 300384, China
2.
National Institute of Metrology, Beijing 100029, China
3.
Beijing University of Chemical Technology, Beijing 100029, China

Received Date: 2023-03-24
Accepted Date: 2023-03-29
Rev Recd Date: 2023-07-31

Available Online: 2023-08-10

Publish Date: 2023-06-18

Abstract

Abstract

To ensure accurate determination of organic impurities in certified reference materials for organic purity, we studied the brominated flame retardant tetrabrombisphenol A (TBBPA). Using the area normalization and standard curve methods, we quantified its primary organic impurity, tribromobisphenol A, and evaluated the associated uncertainties. Additionally, the impurity's content was measured using quantitative nuclear magnetic resonance (qNMR). The impurity levels derived from the area normalization and standard curve methods were 0.70% ± 0.04% and 1.16% ± 0.09%, respectively. A combined purity estimate yielded 0.93% ± 0.24%, encompassing the qNMR result of 0.76% ± 0.03%. When significant discrepancies (>0.1%) arise between the area normalization and standard curve methods, their combined result can be adopted to guarantee the accuracy of the measurement.
- metrology,
- tetrabromobisphenol A,
- organic impurity quantification,
- uncertainty evaluation,
- area normalization method,
- standard curve method,
- quantitative nuclear magnetic resonance (qNMR)

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References(37)

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