Combining pyrohydrolysis and ICP-MS for bromine and iodine determination in airborne particulate matter

Picoloto, Rochele S.; Cruz, Sandra M.; Mello, Paola A.; Müller, Edson I.; Smichowski, Patricia; Flores, Érico M.M.

doi:10.1016/j.microc.2014.05.002

Cited by 23 publications

(8 citation statements)

References 55 publications

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“…25,37,81,82,109 Another relatively simple and inexpensive sample preparation Na 2 CO 3 , Na 2 SO 3 , NaOH, or TMAH), being converted into their ionic form. 39,42,113,115,152,153 The pyrohydrolysis system consists of a quartz or silica reactor tube enclosed in an electric furnace. Samples are introduced into a quartz or silica boat into the reactor through one of its extremities, along with water vapor and a carrier gas (air, O 2 , or an inert gas).…”

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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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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“…Pyrohydrolysis separation of Br and I in airborne particulate matters collected on a glass filter was reported. 42 Another work deals with the separation of Br, F and I in medicines and in some mineral supplements. 43 In both the cases quantification was achieved with ICP-MS.…”

Section: Environmental and Biological Samplesmentioning

confidence: 99%

Pyrohydrolysis, a clean separation method for separating non-metals directly from solid matrix

Vg¹,

Jeyakumar²

2018

OAJS

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Pyrohydrolysis is a sample preparation technique widely employed for the separation of fluorine, chlorine, bromine, iodine, boron and sulphur from solid samples which include refractive materials that are difficult to dissolve. There is a growing interest in the application of this technique to samples of diverse nature. Pyrohydrolysis is based on the principle that pulverization of a soild sample due to the combined action of heat and steam at high temperature produces volatile compounds of the analytes which are trapped in an alkaline solution for subsequent analysis. Studies reported in the recent past have investigated the effect of various pyrohydrolysis conditions required to pulverise the matrix as well as to convert the analytes into their volatile oxides. Hence, the physico-chemical investigation on one type of the sample is different from the other and such information is very useful while dealing with a new material for its pyrohydrolysis. This mini review is an attempt to highlight a few pyrohydrolytic separations which have significant importance.

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“…For As and Hg determination by FI-CVG-ICP-MS, analytical standards (0.05 to 1 μg l −1 ) were prepared by sequential dilution of a 10 mg l −1 stock reference solution, in 0.7 mol l −1 HNO 3 . Analytical standards (1 to 10 μg l −1 ) for Br were prepared by dilution of the stock reference solution (1000 mg l −1 , prepared by dissolution of KBr salt in water) in 10 mmol l −1 NH 4 OH [38].…”

Section: Reagents and Samplesmentioning

confidence: 99%

Plasma-based determination of inorganic contaminants in waste of electric and electronic equipment after microwave-induced combustion

Mello

Diehl

Silva

et al. 2015

Spectrochimica Acta Part B: Atomic Spectroscopy

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Combining pyrohydrolysis and ICP-MS for bromine and iodine determination in airborne particulate matter

Cited by 23 publications

References 55 publications

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

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

Pyrohydrolysis, a clean separation method for separating non-metals directly from solid matrix

Plasma-based determination of inorganic contaminants in waste of electric and electronic equipment after microwave-induced combustion

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