Accurate measurement of bromine contents in plastic samples by instrumental neutron activation analysis

Kim, I.J.; Lee, K.S.; Hwang, Euijin; Min, Hyegeun; Yim, Yong‐Hyeon

doi:10.1016/j.aca.2013.01.037

Cited by 17 publications

(7 citation statements)

References 19 publications

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“…No γ‐ray peaks from 76 Se, 122 Sb, and/or 110 Ag were found, because the samples were prepared with pure solutions and cellulose filter papers, only. Small amount of 82 Br was found from the cellulose filter papers . But γ‐ray peaks of 82 Br were so small and well separated from the γ‐ray peaks of 76 As as shown in Figure (a) and did not cause any interference either.…”

Section: Resultsmentioning

confidence: 99%

“…The total content of arsenic in the candidate reference material of the AsB standard solution was measured by INAA using standard comparator method . Ten representative bottles from a batch of AsB standard solutions were selected including the first and the last bottles.…”

Section: Methodsmentioning

confidence: 99%

“…MAESTRO‐32 software (ORTEC) was used for emulation of the multichannel analyzer, and the spectra were analyzed by the HyperGam program . The total content of elemental arsenic, [As] total , in the AsB standard solutions was determined as

{[A s]}_{total} = \frac{A_{0, normalu normaln normalk} false/ m_{normalu normaln normalk} false/ f_{normalϕ, normalu normaln normalk}}{A_{0, normals normalt normald} false/ m_{normals normalt normald} false/ f_{normalϕ, normals normalt normald}} \times true \underset{i = 1}{false\prod} R_{i} \times true \underset{i = 1}{false\prod} f_{i} f_{fast_normaln} f_{fission} f_{normalγ_normali normaln normalt}

where, A 0,unk[or std] is decay corrected activity of the AsB solution sample [or a standard comparator], m unk is mass of the AsB solution sample, m std is total amount (mass) of the elemental arsenic in the standard comparator. The R factors are for the correction of the differences between the AsB solution samples and the standard comparators.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Development of an Arsenobetaine Standard Solution with Metrological Traceability to the SI by an Arsenic‐specific Mass Balance Method

Kim

et al. 2017

Bulletin Korean Chem Soc

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An arsenobetaine (AsB) standard solution with metrological traceability to the International System of Units was developed as a calibration standard for the quantitative analysis of AsB. An arsenic‐specific mass balance method was established for the certification of the AsB standard solution. The accurate mass fraction of total arsenic in the solution was determined by instrumental neutron activation analysis with direct comparator method. Arsenic‐containing impurities were evaluated by arsenic speciation analysis using liquid chromatography‐inductively coupled plasma mass spectrometry (LC‐ICP‐MS). Two LC separation methods were adopted for comprehensive coverage of the impurities, which include the reversed‐phase LC with ion‐pairing and the cation exchange chromatography. The only arsenic‐containing impurity observed by LC‐ICP‐MS was trace level of trimethylarsine oxide. The mass fraction of arsenic in the form of AsB was obtained by subtracting the arsenic mass fractions of the impurities from the total arsenic in the standard solution. The between‐bottle inhomogeneity of AsB content in the standard solution was less than 0.7%, which was estimated from the relative standard deviation of the measurement results obtained from 10 representative sample bottles from a batch. The certified value of AsB and its expanded uncertainty as arsenic mass fraction were assigned to be (51.28 ± 1.17) mg/kg (k = 2 approximately at 95% level of confidence).

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

{[A s]}_{total} = \frac{A_{0, normalu normaln normalk} false/ m_{normalu normaln normalk} false/ f_{normalϕ, normalu normaln normalk}}{A_{0, normals normalt normald} false/ m_{normals normalt normald} false/ f_{normalϕ, normals normalt normald}} \times true \underset{i = 1}{false\prod} R_{i} \times true \underset{i = 1}{false\prod} f_{i} f_{fast_normaln} f_{fission} f_{normalγ_normali normaln normalt}

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Development of an Arsenobetaine Standard Solution with Metrological Traceability to the SI by an Arsenic‐specific Mass Balance Method

Kim

et al. 2017

Bulletin Korean Chem Soc

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“…The Br-ISE was calibrated in the KBr (10 −6 -10 −1 M) solutions that were prepared in deionized water for 200 s. The effect of the pH value of the solution on the Br-ISE response potential was studied by calibrating the potential of Br-ISE in 10 −3 M KBr solutions with different pH values (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13).…”

Section: Characterizationmentioning

confidence: 99%

“…However, the bromine industry normally use titration to measure the bromine concentrations. Methods to detect the concentration of bromide and other halogens in water include neutron activation analysis, inductively coupled plasma mass spectrometry, ion and liquid chromatography, and fluorescence spectroscopy [6][7][8][9][10][11]. Although these methods are highly mature and could obtain results with high accuracy and precision, complex procedures and expensive equipment limited these methods.…”

Section: Introductionmentioning

confidence: 99%

Doped PANI Coated Nano-Ag Electrode for Rapid In-Situ Detection of Bromide in Seawater

Wang

Zhou

et al. 2019

Coatings

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In this paper, we successfully fabricated a novel bromide ion selective electrode (Br-ISE), which was coated by bromine ion doped polyaniline as sensitive film. Using Ag wire as the substrate, a uniform and dense nano-silver layer was electroplated to enhance the specific surface area of the electrode. Subsequently, a polyaniline (PANI) film was coated onto the electrode by cyclic voltammetry in a 0.3 M aniline and 1 M HCl solution and was in-situ doped by 0.1 M KBr solution. The morphology and performance of the electrode were characterized by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), and other electrochemical analysis methods, respectively. The prepared Br-ISE exhibited a wide linear dynamic range between 1.0 × 10−1 and 1.0 × 10−7 M with a near-Nernst slope of 57.33 mV/decade. In addition, the electrode possessed extremely fast response time (<1 s) and low impedance (300 Ω), high sensitivity, and good selectivity. The electrode potential drifted within 2 mV in 8 h. The lifespan was larger than three months.

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Performance assessment of elemental characterization in environmental samples at the KRISS–KAERI INAA laboratory

Dasari,

Cho,

Hong

et al. 2024

J Radioanal Nucl Chem

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Accurate measurement of bromine contents in plastic samples by instrumental neutron activation analysis

Cited by 17 publications

References 19 publications

Development of an Arsenobetaine Standard Solution with Metrological Traceability to the SI by an Arsenic‐specific Mass Balance Method

Development of an Arsenobetaine Standard Solution with Metrological Traceability to the SI by an Arsenic‐specific Mass Balance Method

Doped PANI Coated Nano-Ag Electrode for Rapid In-Situ Detection of Bromide in Seawater

Performance assessment of elemental characterization in environmental samples at the KRISS–KAERI INAA laboratory

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