Methodological aspects of methylphosphonic acid analysis: Determination in river and coastal water samples

Lohrer, Constantin; Cwierz, Paul P.; Wirth, Marisa A.; Schulz–Bull, Detlef E.; Kanwischer, Marion

doi:10.1016/j.talanta.2020.120724

Cited by 5 publications

(10 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the application to seawater is largely restricted, as sea salt will bind to the binding sites of the SPE resin, avoiding efficient retention of the target analyte onto the column. In this regard, it has recently been shown that electrodialysis (ED) is a promising sample processing tool for the targeted analysis of pollutants from seawater (Wirth et al 2019(Wirth et al , 2021Lohrer et al 2020). ED is established in many industrial processes, e.g., for seawater desalination during drinking water production, but has found limited application in environmental sciences, so far.…”

Section: Methods For Seawater Sample Processingmentioning

confidence: 99%

Substances of emerging concern in Baltic Sea water: Review on methodological advances for the environmental assessment and proposal for future monitoring

Kanwischer

Asker

Wernersson

et al. 2021

Ambio

Self Cite

View full text Add to dashboard Cite

The Baltic Sea is among the most polluted seas worldwide. Anthropogenic contaminants are mainly introduced via riverine discharge and atmospheric deposition. Regional and international measures have successfully been employed to reduce concentrations of several legacy contaminants. However, current Baltic Sea monitoring programs do not address compounds of emerging concern. Hence, potentially harmful pharmaceuticals, UV filters, polar pesticides, estrogenic compounds, per- and polyfluoroalkyl substances, or naturally produced algal toxins are not taken into account during the assessment of the state of the Baltic Sea. Herein, we conducted literature searches based on systematic approaches and compiled reported data on these substances in Baltic Sea surface water and on methodological advances for sample processing and chemical as well as effect-based analysis of these analytically challenging marine pollutants. Finally, we provide recommendations for improvement of future contaminant and risk assessment in the Baltic Sea, which revolve around a combination of both chemical and effect-based analyses.

show abstract

Section: Methods For Seawater Sample Processingmentioning

confidence: 99%

Substances of emerging concern in Baltic Sea water: Review on methodological advances for the environmental assessment and proposal for future monitoring

Kanwischer

Asker

Wernersson

et al. 2021

Ambio

Self Cite

View full text Add to dashboard Cite

show abstract

“…The herein further developed method mainly builds on our previous work, in which we processed water samples through weak anion-exchange solid phase extraction (SPE) with subsequent derivatization to enable analysis through GC-MS. However, Lohrer et al .…”

Section: Resultsmentioning

confidence: 99%

“…Validation of the method was conducted for MPn and 13 C-MPn concentrations, which we expected for the field based on our previous work of Lohrer et al and which we applied in the incubation samples in this study. Overall, the validation analysis revealed a precision for MPn and 13 C-MPn analysis ranging from about 3 to 20 and 0.1 to 6% and an accuracy ranging from about 3 to 23 and 4 to 30% (Table S6).…”

Section: Resultsmentioning

confidence: 99%

“…Thus, the finally developed method used herein allowed the direct analysis of MPn in brackish Baltic Sea water without the need of initial sample processing to reduce the salt content of the sample matrix (Figure 2). Validation of the method was conducted for MPn and 13 C-MPn concentrations, which we expected for the field based on our previous work of Lohrer et al 31 and which we applied in the incubation samples in this study. Overall, the validation analysis revealed a precision for MPn and 13 C-MPn analysis ranging from about 3 to 20 and 0.1 to 6% and an accuracy ranging from about 3 to 23 and 4 to 30% (Table S6).…”

Section: Mpn Analysis Methodmentioning

confidence: 99%

“…15 It belongs to the class of organophosphonates and is characterized by a C−P bond (for review, see refs 18,19). Based on 31 spectroscopy ( 31 P NMR) studies, it has been shown that phosphonates are one of the major components of the highmolecular-weight (HMW) dissolved organic P (DOP) pool in seawater from the Pacific Ocean. 20 Moreover, it was demonstrated that polysaccharide esters of MPn are distinct constituents of phosphonates identified in dissolved organic matter in seawater of the North Pacific subtropical gyre.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stable Isotope Approach to Assess the Production and Consumption of Methylphosphonate and Its Contribution to Oxic Methane Formation in Surface Waters

Kanwischer,

Klintzsch,

Schmale

2023

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Recent studies in aquatic environments have indicated that microbial methane production is not limited to strictly anoxic conditions and is widespread in the oxic water column. Based on recent investigations proposing linkage between the microbial turnover of methylphosphonate (MPn) and the widespread methane oversaturation in surface waters, we conducted an MPn/13C-MPn tracer approach that combines liquid chromatography–mass spectrometry and gas chromatography–stable isotope ratio mass spectrometry to assess concentrations of the MPn tracer and its contribution to oxic methane formation. In our study, conducted during summer 2020 in the Baltic Sea, we show that MPn is a potent methanogenic substrate in the surface water. However, we found that MPn was produced within the surface and subthermocline water bodies and that its turnover was not limited to the phosphorus-stressed and cyanobacteria-rich surface water. However, our study revealed that most of the MPn was probably degraded via alternative pathways, not releasing methane. Our assessment indicates that the contribution of the MPn degradation pathway only contributed marginally to oxic methane production at the study site in the Baltic Sea and that a variety of methanogenic pathways are probably responsible for the surface-water methane enrichments.

show abstract

Electrodialysis as a sample processing tool for bulk organic matter and target pollutant analysis of seawater

et al. 2019

View full text Add to dashboard Cite

Methodological aspects of methylphosphonic acid analysis: Determination in river and coastal water samples

Cited by 5 publications

References 35 publications

Substances of emerging concern in Baltic Sea water: Review on methodological advances for the environmental assessment and proposal for future monitoring

Substances of emerging concern in Baltic Sea water: Review on methodological advances for the environmental assessment and proposal for future monitoring

Stable Isotope Approach to Assess the Production and Consumption of Methylphosphonate and Its Contribution to Oxic Methane Formation in Surface Waters

Electrodialysis as a sample processing tool for bulk organic matter and target pollutant analysis of seawater

Contact Info

Product

Resources

About