Buffer Standards for the Physiological pH of the Zwitterionic Compound, DIPSO, from 5 to 55 °C

Roy, Lakshmi N.; Roy, Rabindra N.; LeNoue, Sean R.; Denton, Cole E.; Fuge, Michael S.; Dunseth, Craig D.; Roy, Chandra Nath; Hayden, Shawn M.; Wollen, Joshua T.; Sreepada, Kripa

doi:10.1007/s10953-009-9379-2

Cited by 3 publications

(6 citation statements)

References 18 publications

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“…An extended Debye-Hückel equation [7,9] has been selected to be the more logical approach to calculate when I is greater than 0.1 mol·kg -1 for all of the buffer solutions containing Cl¯.…”

Section: Methods and Resultsmentioning

confidence: 99%

“…The following empirical equation is used for the calculation of the adjustable parameter "C" and was obtained from a curve-fitting method [7,9]: …”

Section: Methods and Resultsmentioning

confidence: 99%

“…The operational pH values at these two temperatures were evaluated from cells (B) and (C) by means of the flowing junction cell [7,9]. The values of δE j were obtained using Eq.…”

Section: Discussionmentioning

confidence: 99%

“…The cell design, preparation procedures of the hydrogen electrode using chloroplatinic acid, hydrogen gas purification, silver-silver chloride electrode of the thermal electrolytic type, solution preparation, voltmeter and other experimental details have been described previously [9,11,12].…”

Section: Methodsmentioning

confidence: 99%

“…(1 Wu and associates [7,8] have published pH and pK 2 values for N-(2-hydroxyethyl)piperazine-N′-2-ethanesulfonic acid, HEPES; and MOPSO. Roy et al [9] reported pK 2 and pH values of N-substituted aminopropane sulfonic acid DIPSO buffer. These solutions are useful for pH control in the physiological region close to that of blood serum.…”

Section: Introductionmentioning

confidence: 99%

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Standards for pH Measurements of Bis-[(2-Hydroxyethyl)amino]acetic Acid (BICINE) from (278.15 to 328.15) K

Roy¹,

Roy²,

Bodendorfer³

et al. 2013

TOELECJ

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Abstract:The second dissociation constant, pK 2 , and related thermodynamic data for BICINE have been previously determined and reported from temperatures (278.15 to 328.15) K. For the present study, three buffer solutions without NaCl, and five with NaCl yielding an ionic strength (I = 0.16 mol·kg -1 ) similar to that of blood plasma were prepared. These buffer solutions have been evaluated in the temperature range of (278.15 to 328.15) K using the extended form of the Debye-Hückel equation. The Bates-Guggenheim convention is only valid when I< 0.1 mol·kg -1 . Values of the residual liquid junction potential (δE j ) between the BICINE solutions and the saturated KCl calomel electrode have been estimated at (298.15 and 310.15) K. Two BICINE buffer solutions are recommended as primary standard reference solutions for pH measurements of biological fluids.

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Section: Methods and Resultsmentioning

confidence: 99%

“…The following empirical equation is used for the calculation of the adjustable parameter "C" and was obtained from a curve-fitting method [7,9]: …”

Section: Methods and Resultsmentioning

confidence: 99%

“…The operational pH values at these two temperatures were evaluated from cells (B) and (C) by means of the flowing junction cell [7,9]. The values of δE j were obtained using Eq.…”

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Standards for pH Measurements of Bis-[(2-Hydroxyethyl)amino]acetic Acid (BICINE) from (278.15 to 328.15) K

Roy¹,

Roy²,

Bodendorfer³

et al. 2013

TOELECJ

Self Cite

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Comparative and biological studies of Cu2+ bicine and tricine chelates and their structures by single-crystal X-ray, DFT/B3LYP, and molecular docking studies

Mostafa

El-Shora

Elemam

et al. 2023

Journal of Molecular Structure

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Buffer standards for the physiological pH of the zwitterionic buffer 3-[<i>N</i>-tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic Acid (TAPSO) From (278.15 to 328.15) K

Roy¹,

Roy

Bodendorfer³

et al. 2011

JBPC

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The second dissociation constant, pK 2 , and related thermodynamic quantities for TAPSO have been previously determined and reported from the temperatures (278.15 to 328.15) K. In the current study there are five buffer solutions without NaCl and five buffer solutions with NaCl present which yield an ionic strength (I = 0.16 mol·kg -1 ) similar to that of blood plasma. These buffer solutions have been evaluated in the temperature range of (278.15 to 328.15) K using the extended Debye-Hückel equation, due to the limitations of the Bates-Guggenheim convention such that it is only valid when I 0.1 mol·kg -1 . The liquid junction potential (E j ) values between the TAPSO solution and the saturated KCl calomel electrode solution have been estimated at (298.15 and 310.15) K using a flowing junction cell measurement. The previously mentioned E j values have been used in determining the operational pH values at (298.15 and 310.15) K. These TAPSO buffer solutions are recommended as reference solutions for pH measurements in saline media with an ionic strength of I = 0.16 mol·kg -1 .

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Buffer Standards for the Physiological pH of the Zwitterionic Compound, DIPSO, from 5 to 55 °C

Cited by 3 publications

References 18 publications

Standards for pH Measurements of Bis-[(2-Hydroxyethyl)amino]acetic Acid (BICINE) from (278.15 to 328.15) K

Standards for pH Measurements of Bis-[(2-Hydroxyethyl)amino]acetic Acid (BICINE) from (278.15 to 328.15) K

Comparative and biological studies of Cu2+ bicine and tricine chelates and their structures by single-crystal X-ray, DFT/B3LYP, and molecular docking studies

Buffer standards for the physiological pH of the zwitterionic buffer 3-[<i>N</i>-tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic Acid (TAPSO) From (278.15 to 328.15) K

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Buffer Standards for the Physiological pH of the Zwitterionic Compound, DIPSO, from 5 to 55 °C

Cited by 3 publications

References 18 publications

Standards for pH Measurements of Bis-[(2-Hydroxyethyl)amino]acetic Acid (BICINE) from (278.15 to 328.15) K

Standards for pH Measurements of Bis-[(2-Hydroxyethyl)amino]acetic Acid (BICINE) from (278.15 to 328.15) K

Comparative and biological studies of Cu2+ bicine and tricine chelates and their structures by single-crystal X-ray, DFT/B3LYP, and molecular docking studies

Buffer standards for the physiological pH of the zwitterionic buffer 3-[&lt;i&gt;N&lt;/i&gt;-tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic Acid (TAPSO) From (278.15 to 328.15) K

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Buffer standards for the physiological pH of the zwitterionic buffer 3-[<i>N</i>-tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic Acid (TAPSO) From (278.15 to 328.15) K