Simultaneous Determination of Various Phosphates in Water-Soluble Ammonium Polyphosphate

Xie, Wenji; Wang, Xin-Long; Li, Yongsheng; Xu, Dehua; Zhong, Yanjun; Yang, Jingxu

doi:10.1007/s10337-019-03786-x

Cited by 14 publications

(10 citation statements)

References 26 publications

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“…Trace pyrophosphate was detected (Figure b) for both FM⊂OP and NCNTs@NFM⊂TP treatment. The application of polyphosphate does not significantly increase the content of pyrophosphate in the root, while pyrophosphate can remain for months without hydrolysis even in acidic plant tissues. , Therefore, artificially applicated polyphosphates scarcely enter the roots directly here but gradually hydrolyze into orthophosphates in vitro , and then to be adopted ultimately. Another interesting finding is that the percentage of organic phosphorus in roots for NCNTs@NFM⊂TP, especially, phytate-1 ( scyllo -l(1,2,3,4,5,6)P 6 , 3.56 ppm) and phytate-2 ( scyllo -l(1,2,3,4,5)P 5 , 4.05/3.66/3.40 ppm), declined significantly compared with that of FM⊂OP (Figure b).…”

Section: Resultsmentioning

confidence: 99%

“…25 Ion chromatography (IC) system (Dionex ICS-600) with a Dionex Ionpac AS16 (250 mm × 4 mm) separation column, an AG16 (50 mm × 4 mm) guard column, and a generator for KOH eluent was used for phosphorus speciation analysis. 26 Malvern ZS90 was taken for the ζ potential at a NCNTs@NFM concentration of 0.04% (pH = 6.2), and the hydrodynamic size distribution was obtained by a Malvern Mastersizer instrument. All of the NCNTs@NFM contained solutions for the ζ potential and size measurement were prepared following the consistent NCNTs@NFM to phosphorous ratio with NCNTs@NFM⊂TP.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Growth of Broad Beans (Vicia faba L.) through Separating Antagonistic Nutrients Using Nitrogen-Doped Carbon Nanotubes

Yang

Yan

et al. 2021

ACS Sustainable Chem. Eng.

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Iron (Fe) and manganese (Mn) remain intractable in the fertilizer design due to the incompatibility with phosphorus (P). Herein, we proposed a nanoscale hierarchical structure, where traditional ionic mineral nutrients were replaced by nitrogen-doped carbon nanotubes (NCNTs) with Fe 1.8 Mn 1.2 C (NFM) inside and polyphosphate (TP) outside, allowing alleviating the antagonism among P, Fe, and Mn. On broad bean (Vicia faba L. var. major) seedlings, NCNTs@NFM⊂TP constructed an isolation system to cope with the precipitation of P, Fe, and Mn in vitro and phytotoxicity in vivo. The binding sites of TP on NCNTs were predicted via density functional theory calculations, and we found that polyphosphates acted as surfactants to disperse NCNTs by electrostatic repulsion and steric hindrance. Independent assessments of NFM or TP part were conducted within biomass accumulation and nutrient assimilation. A dose-dependent increase of plant biomass was observed, except for the highest dose (51.2 mg L −1 ) in which oxidative stress was induced. Electron microscopy traced the subcellular translocation of NCNTs@NFM after root exposure. Nuclear magnetic resonance spectroscopy analysis for phosphorous species of roots unveiled the rhizosphere-release mechanism of TP. The hierarchical nanofertilizer, enabling carbon layers to coordinate the release of multiple elements, is promising to improve nutrition efficiency.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Experimental Sectionmentioning

confidence: 99%

Enhanced Growth of Broad Beans (Vicia faba L.) through Separating Antagonistic Nutrients Using Nitrogen-Doped Carbon Nanotubes

Yang

Yan

et al. 2021

ACS Sustainable Chem. Eng.

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“…In Figure a, the ion chromatographic peaks from P1 to P8 successively represented phosphate ions in different forms of phosphorus polymerization from PO 4 3– to P 8 O 25 . − Figure b points the specific composition of different phosphorus species which can act as fast phosphorus and slow phosphorus in the fertilizer application process to improve phosphorus utilization.…”

Section: Methodsmentioning

confidence: 99%

“…The research results of Venugopalan and Prasad showed that the wider the distribution of the degree of polymerization of water-soluble APP, the higher the utilization rate of phosphorus in crops . Xie et al established a method for the determination of water-soluble APP with different degrees of polymerization distribution . The research results of Gao et al showed that the application of water-soluble APPs with different polymerization degrees into soil could significantly increase the content of soil-available phosphorus and the availability of soil trace elements .…”

Section: Introductionmentioning

confidence: 99%

Solid–Liquid Phase Equilibrium of Ammonium Dihydrogen Phosphate and Agricultural Grade Ammonium Polyphosphate (Degree of Polymerization Ranging from 1 to 8) for Mixed Irrigation Strategy

Zhou

et al. 2022

ACS Omega

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Water-soluble ammonium polyphosphate (APP) has the advantages of good solubility and slow-release characteristics and has the potential to be used in combination with monoammonium phosphate (MAP) as a high phosphorus content slow-release fertilizer to improve the utilization rate of phosphorus during irrigation. Herein, the effects of the APP1 concentration and temperature (278.2−313.2 K) on the solubility of MAP, solution density, and pH value in the ternary equilibrium system (APP1− MAP−water) were measured. The simplified Apelblat model, two empirical polynomials, and rational two-dimensional functions can describe the experimental solubility data, solution density, and pH value well, respectively, with reliable modeling parameters (R 2 > 0.99). In the OptiMax1001 reactor, the focused beam reflectance measurement (FBRM), the particle-view measurement (PVM), and the ReactIR 15 probes were used to observe and reverse verify that they can be synergistically codissolved to achieve economic efficiency. Basic thermodynamic data and models can guide their collaborative application in irrigation to improve the phosphorus utilization rate.

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“…This method has been successfully used for the determination of phosphate concentrations in actual wastewaters, indicating the quantification range of 3-18 mg/L PO 4 3without dilution prior to the analysis. The determination of phosphates as dissolved anions using ionic liquid chromatography was studied by Xie et al (2019). The determination range was 1-500 mg/L and the detection limit was in the range of 0.17-0.54 mg/L.…”

Section: Introductionmentioning

confidence: 99%

Determination of phosphate in water by flow coulometry

Manová

Beinrohr

2020

Acta Chimica Slovaca

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In this work, the possibility of flow coulometry application as coulometric titration was studied. The method was used to analyze phosphates in wastewater samples. The principle of the determination consisted in the formation of molybdophosphate and its subsequent one-electron electrolytic reduction. The present method is applicable under optimal conditions in the concentration range of 1.5 × 10−6 to 5.5 × 10−5 mol/dm3. Detection limit of the method is 3.42 × 10−7 mol/dm3. Mineralization step has been proved a problem in total phosphate content determination. If mineralization was not carried out, only inorganic soluble phosphates were determined. It is a new method characterized by its simplicity of instrumentation and handling, which is a prerequisite for its further use in the field of trace analysis.

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Simultaneous Determination of Various Phosphates in Water-Soluble Ammonium Polyphosphate

Cited by 14 publications

References 26 publications

Enhanced Growth of Broad Beans (Vicia faba L.) through Separating Antagonistic Nutrients Using Nitrogen-Doped Carbon Nanotubes

Enhanced Growth of Broad Beans (Vicia faba L.) through Separating Antagonistic Nutrients Using Nitrogen-Doped Carbon Nanotubes

Solid–Liquid Phase Equilibrium of Ammonium Dihydrogen Phosphate and Agricultural Grade Ammonium Polyphosphate (Degree of Polymerization Ranging from 1 to 8) for Mixed Irrigation Strategy

Determination of phosphate in water by flow coulometry

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