International comparison on Ag|AgCl electrodes for pH measurement

Brewer, Paul J.; Panagoulia, Danai; Brown, Richard; Tromans, A.; Reyes, Alfonso; Arce, Mauricio D.; Vospĕlová, Alena; Roziková, Matilda; Pratt, Kenneth W.; Asakai, Toshiaki; Jakobsen, Pia Tønnes; Camões, Maria Filomena; Oliveira, C. S. de; Godinho, Isabel; Spitzer, Petra; Sander, Beatrice; Máriássy, Michal; Vyskočil, L; Fisicaro, Paola; Stoica, Daniela; Uysal, Emrah

doi:10.1016/j.measurement.2015.01.029

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…The power of Hydrogen (pH) plays important role in industry and research [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The simplest way to measure pH of solution use litmus paper, but it can only distinguish either base or acid condition without knowing the exact pH value.…”

Section: Introductionmentioning

confidence: 99%

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Novel pH sensor based on fiber optic coated bromophenol blue and cresol red

Kurniawan¹,

Zulkarnain²,

Hermanto³

et al. 2019

TELKOMNIKA

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Fabrication of pH sensor based on fiber optic coated bromophenol blue and cresol red has been done. Briefly, jacket in the middle part of the fiber optic was removed for 5 cm. Then the core of each of fiber optics was washed in ethanol. Nitric acid, demineralized water, and ethanol again consecutively. Then the cleaned core was coated using active material using sol-gel immobilization technique. Tetraehyl orthosilicate was used as a binder in the immobilization of active materials. Bromophenol blue will start change the color to yellow at below pH 3.00±0.01 and blue at above pH 4.60±0.01, while the cresol red will start change the color to yellow at below pH 7.20±0.01 and violet at above pH 8.80±0.01. The pH sensors which have been made show the sigmoidal response over pH from 1.00±0.01 to 11.00±0.01. The sensor has a better performance in comparation with the other sensor.

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Section: Introductionmentioning

confidence: 99%

“…Measurement range of pH electrode is decent that is from 0.0 to 14.0. The weakness of this type pH device has rigid shape, relatively big (it requires reference electrodes) and fragile (the glass membrane part) [1,5,16,17].…”

Section: Introductionmentioning

confidence: 99%