Soil phosphorus characterisation by<sup>31</sup>p nuclear magnetic resonance

Newman, Roger H.; Tate, K. R.

doi:10.1080/00103628009367083

Cited by 282 publications

(211 citation statements)

References 14 publications

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“…Phosphonates are refractory organic phosphorus compounds and can be released into seawater from biological sources [78,90,139], and have been detected in soils [140] and soil leachate [117]. As phosphonates contain a strong C P bond that is resistant to acid hydrolysis [139], they are useful compounds for recovery studies [78,90,97,125,126,139].…”

Section: Model Compoundsmentioning

confidence: 99%

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Worsfold

Gimbert

Mankasingh

et al. 2005

Talanta

159

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Section: Model Compoundsmentioning

confidence: 99%

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Worsfold

Gimbert

Mankasingh

et al. 2005

Talanta

159

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“…The 31 P-NMR spectrum provides information on relative abundances of specific P compounds. For example, orthophosphate, orthophosphate monoesters, orthophosphate diester, pyrophosphates in aqueous, and alkaline extracts of sediments, manures, or soils have been identified and quantified by this technique (Newman and Tate 1980;Cade-Menun et al 2002;He et al 2009). However, the composition, sources, bioavailability, and biogeochemical cycling of P o derived from debris of aquatic macrophytes and algae in lakes are not well understood.…”

Section: Introductionmentioning

confidence: 99%

Characterization of phosphorus forms in lake macrophytes and algae by solution 31P nuclear magnetic resonance spectroscopy

Feng

Zhu

et al. 2015

Environ Sci Pollut Res

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Debris from aquatic macrophytes and algae are important recycling sources of phosphorus (P), which can result in continuing blooms of algae by recycling bioavailable P in the eutrophic lakes. However, knowledge of forms of P in aquatic macrophytes and algae and their contribution to internal loads of P in lakes is limited. Without such knowledge, it is difficult to develop appropriate strategies to remediate and or restore aquatic ecosystems that have become eutrophic. Therefore, in this work, P was extracted from six types of aquatic macrophytes and algae collected from Tai Lake of China and characterized by use of solution 31 P-nuclear magnetic resonance (NMR) spectroscopy. When extracted by 0.5 M NaOH-25 mM EDTA, extraction recovery of total P(TP) and organic P(P o ) exceeded 90 %. Concentrations of P o in algae and aquatic macrophytes were 5552 mg kg −1 and 1005 mg kg −1 and accounted for 56.0 and 47.2 % of TP, respectively. When P o , including condensed P, was characterized by solution 31 P-NMR P o in algae included orthophosphate monoesters (79.8 %), pyrophosphate (18.2 %), and orthophosphate diester (2.0 %), and P o in aquatic macrophytes included orthophosphate monoesters (90.3 %), pyrophosphate (4.2 %), and orthophosphate diester (5.5 %). Additionally, orthophosphate monoesters in algal debris mainly included β-glycerophosphate (44.1 %), α-glycerophosphate (13.5 %), and glucose 6-phosphate (13.5 %). Orthophosphate monoesters in aquatic macrophytes mainly included β-glycerophosphate (27.9 %), α-glycerophosphate (24.6 %), and adenosine 5′ monophosphate (8.2 %). Results derived from this study will be useful in better understanding nutrient cycling, relevant eutrophication processes, and pollution control for freshwater lakes.

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“…Na área de cana crua (0-0,20 m), 92 % do espectro correspondeu à absorção em 0,84 ppm, atribuído ao P de ácido nucléico e fosfolipídios (Newman & Tate, 1980). Altas proporções de DNA foram encontradas no extrato de NaOH de materiais vegetais (Makarov Tate & Newman (1982) confirmou a origem do P nos fosfolipídios de extrato alcalino como sendo de resíduos vegetais.…”

Section: Resultsunclassified

Fósforo num Cambissolo cultivado com cana-de-açúcar por longo tempo: II - análise de ácidos húmicos por RMN 31P

Busato¹,

Canellas²,

Rumjanek

et al. 2005

Rev. Bras. Ciênc. Solo

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RESUMOSistemas de manejo da lavoura de cana-de-açúcar que favoreçam a matéria orgânica do solo podem aumentar o conteúdo de nutrientes disponíveis e diminuir a necessidade de aplicação de fertilizantes industriais. Apesar da importância dos componentes orgânicos no fornecimento de P, pouco se conhece sobre a sua dinâmica em ambientes tropicais. O objetivo deste trabalho foi identificar, por meio da ressonância magnética nuclear (RMN 31 P), as espécies de P nos ácidos húmicos de um Cambissolo Háplico Ta eutrófico vértico, localizado no Município de Campos dos Goytacazes, norte do Estado do Rio de Janeiro, e cultivado com cana-de-açúcar com preservação do palhiço e adição de vinhaça por longo tempo. Por meio da análise de RMN 31 P foi possível observar acúmulo de P orgânico em formas mais facilmente mineralizadas nas áreas com preservação de matéria orgânica, tal como P em ligações diésteres. Nas áreas de cana queimada, houve maior participação de espécies orgânicas mais estáveis, como o ortofosfato em ligações monoésteres. Os resultados da espectroscopia de RMN 31 P mostram que, nas áreas com maior aporte de resíduo orgânico (i.e., cana crua e cana queimada com adição de vinhaça), os ácidos húmicos constituem uma reserva importante de P orgânico prontamente disponível. Já, nas áreas de cana queimada, o acúmulo de P orgânico recalcitrante nos ácidos húmicos indica utilização do P-lábil das substâncias húmicas como fonte importante para nutrição das plantas.Termos de indexação: cana crua, substâncias húmicas, vinhaça, solo tropical.

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Soil phosphorus characterisation by³¹p nuclear magnetic resonance

Cited by 282 publications

References 14 publications

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Characterization of phosphorus forms in lake macrophytes and algae by solution 31P nuclear magnetic resonance spectroscopy

Fósforo num Cambissolo cultivado com cana-de-açúcar por longo tempo: II - análise de ácidos húmicos por RMN 31P

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Soil phosphorus characterisation by31p nuclear magnetic resonance

Cited by 282 publications

References 14 publications

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Characterization of phosphorus forms in lake macrophytes and algae by solution 31P nuclear magnetic resonance spectroscopy

Fósforo num Cambissolo cultivado com cana-de-açúcar por longo tempo: II - análise de ácidos húmicos por RMN 31P

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Soil phosphorus characterisation by³¹p nuclear magnetic resonance