Evidence map›Paper›PMID 38001374›Full record

ArticleAnalytical and bioanalytical chemistry2024

Rigorous pH measurement in non-aqueous solution: measurement method and reference values in ethanol.

Frank Bastkowski, Agnes Heering, Emrah Uysal, Lokman Liv, Ivo Leito, Raquel Quendera, Luís Ribeiro, Lisa Deleebeeck, Alan Snedden, Dániel Nagy and 5 more

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Analytical and bioanalytical chemistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 47% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 8 institutions in 7 countries.

Frank BastkowskiPhysikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Brunswick, Germany. frank.bastkowski@ptb.de.
Agnes HeeringUniversity of Tartu, 14a Ravila Street, 50411, Tartu, Estonia.
Emrah UysalElectrochemistry Laboratory, Chemistry Group, The Scientific and Technological Research Council of Turkey, National Metrology Institute, (TUBITAK UME), 41470, Gebze, Kocaeli, Turkey.
Lokman LivElectrochemistry Laboratory, Chemistry Group, The Scientific and Technological Research Council of Turkey, National Metrology Institute, (TUBITAK UME), 41470, Gebze, Kocaeli, Turkey.
Ivo LeitoUniversity of Tartu, 14a Ravila Street, 50411, Tartu, Estonia.
Raquel QuenderaInstituto Português da Qualidade, R. António Gião, 2829-513, Caparica, Portugal.
Luís RibeiroInstituto Português da Qualidade, R. António Gião, 2829-513, Caparica, Portugal.
Lisa DeleebeeckDFM A/S, Kogle Allé 5, 2970, Hørsholm, Denmark.
Alan SneddenDFM A/S, Kogle Allé 5, 2970, Hørsholm, Denmark.
Dániel NagyGovernment Office of the Capital City Budapest (BFKH), Németvölgyi Út 37-39, 1124, Budapest, Hungary.
Zsófia Nagyné SzilágyiGovernment Office of the Capital City Budapest (BFKH), Németvölgyi Út 37-39, 1124, Budapest, Hungary.
Filomena CamõesFCiências.ID, Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal.
Bárbara AnesFCiências.ID, Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal.
Matilda RozikováCzech Metrology Institute, Okružní 31, 63801, Brno, Czech Republic.
Daniela StoicaLaboratoire National de Métrologie Et d'Essais (LNE), 1 Rue Gaston Boissier, 75015, Paris, France.
Government Office of the Capital City BudapestInstituto Português Da Qualidade · PTTübitak National Metrology Institute · TRUniversity of Lisbon · PTUniversity of Tartu · EEČeský Metrologický Institut · CZLaboratoire National de Métrologie et d'Essais · FRPhysikalisch-Technische Bundesanstalt · DE

Funding

Eesti Teadusagentuur PSG723European Metrology Programme for Innovation and Research 17FUN09Fundação para a Ciência e Tecnologia UID/QUI/00100/2020FC.ID
6 · The paper itself

Abstract

The recently introduced unified pH ([Formula: see text]) concept enables rigorous pH measurements in non-aqueous and mixed media while at the same time maintaining comparability to the conventional aqueous pH scale. However, its practical application is hindered by a shortage of reference [Formula: see text] values. In order to improve this situation, the European Metrology Research Project (EMPIR) UnipHied ("Realisation of a UnipHied pH scale") launched an interlaboratory comparison among highly experienced electrochemistry expert laboratories to assign the first such reference [Formula: see text] values by adopting an extensive statistical treatment of the reported measurement data: to phosphate buffer in water-ethanol mixture (50 wt% of ethanol) and ammonium formate buffer in pure ethanol. Two different measurement setups - one capable of being easily adopted in industrial applications - have been used to demonstrate the robustness of [Formula: see text] measurement. This is an important step towards wider adoption of the [Formula: see text] concept in practice, like liquid chromatography, biofuels analysis and electrocatalysis.

Indexed as

Commercial glass electrodesDifferential potentiometryInterlaboratory comparisonNon-aqueous bufferReference valuesUnified pH scale

Identifiers

PMID38001374
PMCPMC10761385
OpenAlexW4388990495

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.