The alternative use of layered double hydroxides as extraction medium coupled with microcomplexation for determination of phosphate in water samples

Gissawong, Netsirin; Sansuk, Sira; Srijaranai, Supalax

doi:10.1016/j.saa.2016.11.002

Cited by 18 publications

(10 citation statements)

References 28 publications

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“…Although some of the methods give a better limit of detection, they use preconcentartion procedures. 5…”

Section: Analytical Figures Of Meritmentioning

confidence: 99%

“…Consequently, the determination of phosphate in natural waters is a priority for checking and controlling the water quality. 1,2 Owing to the importance of phosphate determination, to date, several analytical methods have been employed for the assay of phosphate, including spectrophotometry, 1,3,4 microcomplexationspectrophotometry, 5 solid phase extraction spectrophotometry, 6 electrochemistry, 7,8 micro nuclear magnetic resonance spectroscopy (NMR), 9 flow injection analysis (FIA), 10 near-infrared, 11 spectrofluorimetry, 12,13 paper-based analytical devices, 14 ion chromatography, 15 and high-performance liquid chromatography mass spectrometry (HPLC-MS/MS). 16 Compared to other techniques described above, UV-Vis spectrophotometric methods are still known as an attractive alternative because of rapidity, simple instrumental implementation, versatility and availability of the instrumentation.…”

Section: Introductionmentioning

confidence: 99%

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A Green Chemosensor for Colorimetric Determination of Phosphate Ion in Soil, Bone, and Water Samples Using Curcumin Nanoparticles

2020

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This article presents a sensitive and straightforward colorimetric chemosensor for the determination of phosphate ion utilizing curcumin nanoparticles (CUNPs) as the sensing system. The color of as-prepared CUNPs can be changed from yellow to orange upon adding iron(III) ions due to the formation of a complex with CUNPs. However, in the presence of phosphate ions, iron(III) ions prefer to bind to phosphate ions and, subsequently the color of CUNPs is selectively recovered because of releasing the iron(III) ions from the CUNPs-iron(III) complex. Therefore, in this work the selective color changing of the CUNPs-iron(III) system upon the addition of phosphate ions was used for the quantitative sensing of phosphate ions. Various factors, such as the pH, concentration of iron(III) and volume of CUNPs, were examined and the optimum conditions were established. A linear calibration graph over the range of 10-400 ng mL-1 for phosphate (r = 0.9995) was achieved using the optimal conditions. The limit of detection (LOD) of the proposed method for phosphate was 7.1 ng mL-1 and the relative standard deviation (RSD) for measuring 50 ng mL-1 of phosphate was 3.7% (n = 8). The developed method was applied for the measurement of phosphate in water, soil, and bone samples. Satisfactory results were obtained.

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“…Although some of the methods give a better limit of detection, they use preconcentartion procedures. 5…”

Section: Analytical Figures Of Meritmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Green Chemosensor for Colorimetric Determination of Phosphate Ion in Soil, Bone, and Water Samples Using Curcumin Nanoparticles

2020

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“…Quantification of o -PO 4 3− with the molybdenum blue method normally implement the preconcentration procedures in order to improve sensitivity. Various preconcentration techniques have been developed such as cloud-point extraction (CPE) 3 , 4 , suspended droplet micro-extraction (SDME) 5 , dispersive liquid–liquid micro-extraction with solidified floating organic drop micro-extraction (DLLME-SFODME) 6 , electrostatically induced stoichiometric extraction (EISE) via layered-double hydroxides (LDHs) 7 , vortex-assisted natural deep eutectic solvent micro-extraction (VA-NADES-ME) 8 and, more recently, vortex-assisted based supramolecular solvents-dispersive liquid–liquid micro-extraction (VA-SS-DLLME) 9 . Even though the techniques offer low limits of detection and high enhancement factor however, the procedures are not simple and handling the liquid extractant require certain skills.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric determination of trace orthophosphate in water by using C18-functionalized silica coated magnetite

Phouthavong

Manakasettharn

Viboonratanasri

et al. 2021

Sci Rep

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In this study, we customized magnetic sorbents by functionalizing silica coated magnetite with octadecyl(C18)silane (Fe3O4@SiO2@C18). This sorbent was intended for the determination of trace orthophosphate (o-PO43−) in unpolluted freshwater samples. The o-PO43− was transformed to phosphomolybdenum blue (PMB), a known polyoxometalate ion. Then the PMB were coupled with cetyl trimethyl ammonium bromide (CTAB), cationic surfactant, in order to hydrophobically bound with the Fe3O4@SiO2@C18 particles through dispersive magnetic solid-phase extraction (d-MSPE) as part of sample preconcentration. The PMB–CTAB–magnetic particles are simply separated from the aqueous solution by the external magnet. The acidified ethanol 0.5 mL was used as PMB-CTAB eluent to produce an intense blue solution, which the absorbance was measured using a UV–Vis spectrophotometer at 800 nm. The proposed method (employing 2 mg of Fe3O4@SiO2@C18) yielded an enhancement factor of 32 with a linear range of 1.0–30.0 µg P L−1. Precision at 6.0 µg P L−1 and 25.0 µg P L−1 were 3.70 and 2.49% (RSD, n = 6) respectively. The lower detection limit of 0.3 µg P L−1 and quantification limit of 1.0 µg P L−1 allowed trace levels analysis of o-PO43− in samples. The reliability and accuracy of the proposed method were confirmed by using a certified reference material. Our method offers highly sensitive detection of o-PO43− with simple procedures that can be operated at room temperature and short analysis time.

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“…Due to their high anion exchange capacity, increased porosity, and high specic surface area, LDHs have been considered as a promising sorbent for enriching inorganic and organic anions. [24][25][26] Moreover, advanced treatment of the surface and structure of LDHs has extended their potential as extraction sorbents for a variety of other organic compounds. [27][28][29][30] In this work, we examined the analytical utility of LDHs as sorbents for the extraction of metallic nanoparticles from water samples for the rst time.…”

Section: Introductionmentioning

confidence: 99%

Application of dissolvable Mg/Al layered double hydroxides as an adsorbent for the dispersive solid phase extraction of gold nanoparticles prior to their determination by atomic absorption spectrometry

Choleva

Giokas

2020

Anal. Methods

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The alternative use of layered double hydroxides as extraction medium coupled with microcomplexation for determination of phosphate in water samples

Cited by 18 publications

References 28 publications

A Green Chemosensor for Colorimetric Determination of Phosphate Ion in Soil, Bone, and Water Samples Using Curcumin Nanoparticles

A Green Chemosensor for Colorimetric Determination of Phosphate Ion in Soil, Bone, and Water Samples Using Curcumin Nanoparticles

Colorimetric determination of trace orthophosphate in water by using C18-functionalized silica coated magnetite

Application of dissolvable Mg/Al layered double hydroxides as an adsorbent for the dispersive solid phase extraction of gold nanoparticles prior to their determination by atomic absorption spectrometry

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