Facilitated transport of 5-aminosalicylic acid through bulk liquid membrane

Zaharia, Ionut; Aboul‐Enein, Hassan Y.; Diaconu, Ioana; Ruse, Elena; Bunaciu, Andrei A.; Nechifor, Gheorghe

doi:10.1007/s13738-013-0245-1

Cited by 11 publications

(9 citation statements)

References 35 publications

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“…( 32) (Supplementary Table S5) are statistically nonsignificant, i.e., p k5 >0.05 (k=2..8). Quadratic regression equation (33), where β k5 (k=1..10) are regression coefficients, was selected to express y 5 =E R . The results of multiple regression analysis, which are given in Supplementary Table S6, highlight that the model is statistical significant (F=35.20, p=0.028).…”

Section: Results and Discussion Statistical Modelsmentioning

confidence: 99%

Effects of Process Factors on Performances of Liquid Membrane-Based Transfer of Indole-3-Acetic Acid

Diaconu¹,

Pârvulescu²,

Topală³

et al. 2021

Preprint

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The paper has aimed at studying the transfer of indole 3-acetic acid (IAA) from a feed aqueous solution to a stripping aqueous solution of NaOH using a chloroform bulk liquid membrane and trioctylamine (TOA) as a ligand (L). Initial molar concentrations of IAA in the feed phase, cIAA,F0 (10-4-10-3 kmol/m3), of TOA in the membrane phase, cL,M0 (10-2 and 10-1 kmol/m3), and of NaOH in the stripping phase, cNaOH,S0 (10-2 and 1 kmol/m3), were selected as process factors. Their effects on the final values of IAA concentration in the feed phase (cIAA,Ff) and stripping solution (cIAA,Sf), extraction efficiency (EF), distribution coefficient (KD), and recovery efficiency (ER) were quantified using multiple regression equations. Regression coefficients were determined from experimental data, i.e., cIAA,Ff,ex=0.02-1×10-4 kmol/m3, cIAA,Sf,ex=0.22-2.58×10-3 kmol/m3, EF,ex=90.0-97.9%, KD,ex=9.0-46.6, and ER,ex=66.5-94.2%. It was found that cIAA,F0 had the most significant positive effect on cIAA,Ff and cIAA,Sf, whereas cNaOH,S0 had a major positive effect on EF, KD, and ER. A deterministic model based on mass transfer of IAA was developed and its parameters, i.e., mass transfer coefficient of IAA-L complex in the liquid membrane (0.08-1.15×10-6 m/s) and extraction constant (1033.9-1779.7 m3/kmol), were regressed from experimental data. The effect of cL,M0 on both parameters was significant.

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Section: Results and Discussion Statistical Modelsmentioning

confidence: 99%

Effects of Process Factors on Performances of Liquid Membrane-Based Transfer of Indole-3-Acetic Acid

Diaconu¹,

Pârvulescu²,

Topală³

et al. 2021

Preprint

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“…This maximum amount at the concentration of indole-3-acetic acid concentration in the membrane, R m max , is obtained when then dRm/dt=0. Thus it results: (11) The time at which is obtained the maximum of concentration from solute in membrane can be assessed with equation 12: (12) At t=t max , a maximum value of the flux at the entrance and exit out of membrane is obtained and can be described by the equations (13) and 14: (13) (14) It is observed that the flux at the entrance and exit out of membrane are equal but the by contrary sign to. At the same time in the membrane at t = t max , is obtain a stationary status because: (15) The experimental data obtained, presented in the figures 1 and 2 demonstrate a good correlation of the transport process of indole-3-acetic acid with the kinetic model of consecutive first order reactions.…”

Section: Resultsmentioning

confidence: 99%

“…Currently, liquid membranes are used for the transport and separation of cations [2,5,28], anions [2,19], isomers [2,35], amines [20], organic acids [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][21][22][23][24], drugs [3,12,17,19], amino acids [10], vitamins [13,[22][23], antibiotics [21,24] (products of biosynthesis in group), etc.…”

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confidence: 99%

Evaluation of Kinetic Parameters at the Transport of Indole-3-acetic Acid Through Bulk Liquid Membranes

Serban¹,

Diaconu²,

Ruse³

et al. 2017

Rev. Chim.

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Indole-3-acetic acid is a growth phytohormone considered the most important representative of auxin class. This paper presents the assessment of some kinetic parameters in the process of transport of indole-3-acetic acid taking into consideration the kinetic model of consecutive irreversible first order reactions. It was pursued the influence upon the process of parameters such as: feed phase concentration, stripping phase concentration in the presence of two type carriers: tributyl phosphate (TBP) and trioctylphosphine oxide (TOPO). Depending on these transport parameters were calculated kinetics parameters such as: pseudo-first-order apparent membrane entrance and exit rate constants, the maximum flux at the entrance and exit out of the membrane. The highest values of the transport flux is obtained in the presence of carrier trioctylphosphine oxide (TOPO) at the concentration in the feed phase of 10-4 mol/L indole-3-acetic acid and a concentration of 10--2mol/L NaOH in the stripping phase.

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“…The kinetic scheme for consecutive reaction systems can be described by following rate equations [51].…”

Section: Blm Proceduresmentioning

confidence: 99%

Bulk Liquid Membrane Process for The Transport and Kinetics Study of Malachite Green From Textile Wastewater

Sathya

Muthuraman

Elumalai

2016

IJEE

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A bulk liquid membrane (BLM) system contained Di (2-ethyl hexyl) phosphoric acid (D2EHPA) as an extractant was used for transport of malachite green (MG) dye from textile wastewater. D2EHPA present in n-hexane is an effective, efficient and highly selective carrier for the transport of MG dye through BLM. Maximum transport 88% was observed at 0.24M concentration of D2EHPA in the membrane phase and 7 moles concentration of acetic acid in the receiving phase after 300 min. The effect of parameters influencing the transport of MG dye such as pH and concentration of dye in the donor solution, extractant concentration in the membrane phase, nature of the organic solvent, the composition of receiving phase, stirring speed and kinetics parameter were elucidated. First order irreversible reaction kinetics k1 and k2 were applied for the transport of MG dye from aqueous phase BLM phase and BLM to acceptor phase. The accumulation of MG in BLM phase and the rate controlling step under different experimental conditions were also discussed. Finally, the proposed liquid membrane was effectively applied for MG dye transport from textile wastewater.

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Facilitated transport of 5-aminosalicylic acid through bulk liquid membrane

Cited by 11 publications

References 35 publications

Effects of Process Factors on Performances of Liquid Membrane-Based Transfer of Indole-3-Acetic Acid

Effects of Process Factors on Performances of Liquid Membrane-Based Transfer of Indole-3-Acetic Acid

Evaluation of Kinetic Parameters at the Transport of Indole-3-acetic Acid Through Bulk Liquid Membranes

Bulk Liquid Membrane Process for The Transport and Kinetics Study of Malachite Green From Textile Wastewater

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