Feasibility of halogen determination in noncombustible inorganic matrices by ion chromatography after a novel volatilization method using microwave-induced combustion

Pereira, Rodrigo Mendes; Costa, Vanize C.; Hartwig, Carla A.; Picoloto, Rochele S.; Flores, Érico M.M.; Duarte, Fábio A.; Mesko, Márcia F.

doi:10.1016/j.talanta.2015.09.031

Cited by 41 publications

(11 citation statements)

References 32 publications

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“…Thus, for IC analysis, ultrapure water and NH 4 OH solutions (50 mmol L −1 and 100 mmol L −1 ) were evaluated and, for ICP-MS analysis, ultrapure water and NH 4 OH solutions (50 mmol L −1 , 100 mmol L −1 , and 150 mmol L −1 ) were evaluated. The absorbing solutions used in this study were selected considering previous studies that recommend these solutions for halogens [ 30 , 32 , 34 ]. For this evaluation, recovery tests were performed by addition of a known analyte concentration (corresponding to 50% of the obtained concentration in the sample used for optimization) in the sample for each absorbing solution evaluated.…”

Section: Resultsmentioning

confidence: 99%

Determination of Halogens by Ion Chromatography in Edible Mushrooms after Microwave-Induced Combustion for Sample Preparation

Coelho

Rondan

Hartwig

et al. 2021

Journal of Analytical Methods in Chemistry

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In this study, the microwave-induced combustion (MIC) method was evaluated for the sample preparation of the most consumed mushroom species in Brazil (Champignon, Shiitake, and Shimeji) and further halogen determination by ion chromatography (IC). For this, sample mass, combustion aid mass, and absorbing solution (H2O and 50 mmol·L−1, 100 mmol·L−1, or 150 mmol·L−1 NH4OH) were evaluated. Bromine and iodine concentrations, determined by IC, were lower than the limits of detection (LODs, Br: 6 mg·kg−1 and I: 24 mg·kg−1). Inductively coupled plasma mass spectrometry (ICP-MS) was also used for Br and I determination, and the LODs were lower (Br: 0.066 mg·kg−1 and I: 0.014 mg·kg−1) than those obtained by IC. Concentrations of Cl, obtained by IC, ranged from 523 mg·kg−1 to 13053 mg·kg−1 with LOD of 40 mg·kg−1. In turn, Br and I concentrations, obtained by ICP-MS, ranged from 2.49 mg·kg−1 to 5.50 mg·kg−1 and from <0.014 mg·kg−1 to 0.047 mg·kg−1, respectively. Fluorine concentrations, determined by IC, were always lower than LOD (23 mg·kg−1). The trueness of the proposed methods was evaluated by recovery tests using standard solutions and a reference material (RM NIST 8435). When using the standard solution, recoveries ranged from 95% to 103% for halogen determination by IC and from 105% to 109% for Br and I determination by ICP-MS. When using the RM, recoveries of 102% for Cl by IC and of 87% and 86% for Br and I by ICP-MS, respectively, were obtained.

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Section: Resultsmentioning

confidence: 99%

Determination of Halogens by Ion Chromatography in Edible Mushrooms after Microwave-Induced Combustion for Sample Preparation

Coelho

Rondan

Hartwig

et al. 2021

Journal of Analytical Methods in Chemistry

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“…The detection method of ion chromatography has high sensitivity and selectivity, but it requires high water quality and is only suitable for testing clean water samples. If ion chromatography is combined with combustion, steam distillation, ultrasonic, and other suitable pretreatment processes, it can be applied to the detection of Cl − in water quality, blood, soil, cosmetics, iron ore, and other fields [67,68]. Tetiana et al [69] combined an ultraviolet detector and a conductivity detector to effectively improve the sensitivity of Cl − detection.…”

Section: Advances In Ion Chromatography Methodsmentioning

confidence: 99%

Review of Chloride Ion Detection Technology in Water

Hu²,

Liu

et al. 2021

Applied Sciences

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The chloride ion (Cl−) is a type of anion which is commonly found in the environment and has important physiological functions and industrial uses. However, a high content of Cl− in water will do harm to the ecological environment, human health and industrial production. It is of great significance to strictly monitor the Cl− content in water. Following the recent development of society and industry, large amounts of domestic sewage and industrial sewage are discharged into the environment, which results in the water becoming seriously polluted by Cl−. The detection of Cl− has gradually become a research focus. This paper introduces the harm of Cl− pollution in the environment and summarizes various Cl− detection methods, including the volumetric method, spectrophotometry method, electrochemical method, ion chromatography, paper-based microfluidic technology, fluorescent molecular probe, and flow injection. The principle and application of each technology are described; their advantages, disadvantages, and applicability are discussed. To goal of this research is to find a more simple, rapid, environmental protection and strong anti-interference detection technology of Cl−.

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“…However, recent applications have demonstrated that, with some changes in the original MIC method (e.g., addition of an combustion aid), it can also be applied for this type of matrix. 130,137,140,141 In this sense, as halogens can be volatilized during the combustion, MIC can provide a complete separation of the analytes from the inorganic matrix without needing complete decomposition of the sample. 108,130,138,142 In general, it is necessary to mix the high inorganic matter sample content with a combustion aid, to ensure the complete The second most used sample preparation method for further halogen determination is extraction.…”

Section: Sample Preparation Methods For Further Halogen Determinatimentioning

confidence: 99%

Challenges and trends for halogen determination by inductively coupled plasma mass spectrometry: A review

Flores

Mello

Krzyzaniak

et al. 2020

Rapid Comm Mass Spectrometry

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Rationale In this review, works published in the past 25 years for fluorine, chlorine, bromine, and iodine determination in several matrices by inductively coupled plasma mass spectrometry (ICP‐MS) were covered. Usually, the determination of halogens has been performed by ICP‐MS using a previous sample preparation step or, more recently, by direct analysis of solid or liquid samples. Methods Methods based on combustion, extraction, pyrohydrolysis, sample dilution in organic or aqueous medium, and wet digestion, among others, are discussed. Moreover, the recent applications of methods based on laser ablation (LA) and electrothermal vaporization (ETV) coupled to ICP‐MS are discussed. Results The main challenge for methods using sample preparation has been to obtain a final solution compatible with ICP‐MS, as well as to overcome problems related to analyte losses and contamination. Interferences due to the presence of dissolved organic compounds in solution, enhancement or suppression of ionization of analytes, and related matrix effects have been of concern when using ICP‐MS. For the determination of halogens by ICP‐MS using LA and ETV systems, some limitations related to the difficulty of calibration are pointed out, impairing the widespread use of this approach. Conclusions A critical view is presented for further halogen determination by ICP‐MS, mainly for matrices considered difficult to digest using conventional protocols.

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Feasibility of halogen determination in noncombustible inorganic matrices by ion chromatography after a novel volatilization method using microwave-induced combustion

Cited by 41 publications

References 32 publications

Determination of Halogens by Ion Chromatography in Edible Mushrooms after Microwave-Induced Combustion for Sample Preparation

Determination of Halogens by Ion Chromatography in Edible Mushrooms after Microwave-Induced Combustion for Sample Preparation

Review of Chloride Ion Detection Technology in Water

Challenges and trends for halogen determination by inductively coupled plasma mass spectrometry: A review

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