A simple spectrophotometric method for the determination of phosphate in soil, detergents, water, bone and food samples through the formation of phosphomolybdate complex followed by its reduction with thiourea

Shyla, B.; Mahadevaiah, .; Nagendrappa, G.

doi:10.1016/j.saa.2010.11.017

Cited by 80 publications

(32 citation statements)

References 23 publications

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“…Phosphorus, the 11th abundant element in crustal rocks of the earth, is predominantly found in the form of phosphate (PO 4 3À ) and extensively used by many applications, being fertilizers and detergents the most important (Shyla and Nagendrappa, 2011). However, due to human activities, inadvertent addition of phosphates to freshwater bodies has caused eutrophication.…”

Section: Introductionmentioning

confidence: 99%

Kinetic and equilibrium studies of phosphorous adsorption: Effect of physical and chemical properties of adsorption agent

Oliveira

Araujo

Azevedo

et al. 2015

Ecological Engineering

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Section: Introductionmentioning

confidence: 99%

Kinetic and equilibrium studies of phosphorous adsorption: Effect of physical and chemical properties of adsorption agent

Oliveira

Araujo

Azevedo

et al. 2015

Ecological Engineering

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“…All experiments were executed at 258C except the study related to effect of temperature. Various parameters like initial phosphate concentration (10-30 mg/L), contact time (10-300 min), pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12), temperature (20-508C), and adsorbent dose (1-7 g/L) were investigated for phosphate removal from aqueous solutions on nano-alumina. Batch experiments were conducted in 100 mL Erlenmeyer flask by mixing appropriate adsorbent dose at fixed shaking speed of incubator and temperature.…”

Section: Batch Studiesmentioning

confidence: 99%

Phosphate removal from aqueous solutions by nano‐alumina for the effective remediation of eutrophication

Yadav

Kumar

Kapur

et al. 2018

Env Prog and Sustain Energy

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Excessive phosphate effluent discharged in the surface water source rush to eutrophication. Consecutively this disturbs the water quality and aquatic ecosystem, due to the depletion of dissolved oxygen. Reduced oxygen level in water bodies affects aquatic life and decreases biodiversity. The present investigation emphasized the phosphate adsorption over nano‐alumina. Surface characteristics of the adsorbents, BET, FTIR, XRD, TEM, and SEM were analyzed to reveal the phosphate adsorption mechanisms. The adsorption isotherms, kinetics, pH effect were observed in batch experiments. The pHpzc value of nano‐alumina adsorbent was found as 8.1. The maximum phosphate adsorption was found to be 98.75% at contact time of 90 min and pH 6. Different models, e.g., Langmuir, Freundlich, Temkin, and Dubinin‐Radushkevich were used for isotherm study. The kinetic data were tested by pseudo‐first order and second order models. An attempt was made to regenerate the spent adsorbent for reuse in the adsorption process. Low cost and high capability of nano‐alumina make it feasible to utilize as cost‐effective phosphate remediation from wastewater. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S77–S85, 2019

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“…It is also most abundant one, since it can be stabilized at neutral pH [2]. The key point source for phosphate are the municipal wastewater [3] and the application as corrosion inhibitor in the wastewater treatment system [4], while the gigantic amount of phosphate released to the environment comes from the non-point source, such as agricultural fertilizer and livestock excretion [5], [6]. High concentration of phosphate in water body, especially a closed or semi-closed to drainage, causes the eutrophication [7]- [10].…”

Section: Introductionmentioning

confidence: 99%

“…However, the use of these techniques is prohibited by an investment cost of analytical instrument. The cheaper technique, spectrophotometry become more popular [5]. Other attractive reasons are simple-to-use and small space required.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Polymer Sensor for Detection of Phosphate in Water

Wongniramaikul¹,

Choodum²

2017

IJCEA

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Abstract-A colorimetric polymer sensor was successfully developed for the detection of phosphate in water. Potassium antimonyl tartrate, ammonium molybdate, ascorbic acid and sulfuric acid were entrapped within the polyvinyl alcohol (PVA) hydrogel matrix and acted as the colorimetric reagent. The PVA sensor was fabricated within a micro-PCR tube to which the sample solution could be directly added for in-tube detection. This made the developed sensor small and easy to carry on field. The optimum condition for sensor synthesis was determined in this research by using the digital image analysis. They are found at 0.6 g/L potassium antimonyl tartrate, 14.4 g/L ammonium molybdate, 5.28 g/L ascorbic acid, 0.05 mg/L sulfuric acid and 15 min reaction time.Index Terms-Hydrogel sensor, phosphate detection, polymer sensor.

show abstract

A simple spectrophotometric method for the determination of phosphate in soil, detergents, water, bone and food samples through the formation of phosphomolybdate complex followed by its reduction with thiourea

Cited by 80 publications

References 23 publications

Kinetic and equilibrium studies of phosphorous adsorption: Effect of physical and chemical properties of adsorption agent

Kinetic and equilibrium studies of phosphorous adsorption: Effect of physical and chemical properties of adsorption agent

Phosphate removal from aqueous solutions by nano‐alumina for the effective remediation of eutrophication

Synthesis of Polymer Sensor for Detection of Phosphate in Water

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