Evidence map›Paper›PMID 41422151›Full record

ArticleAnalytical and bioanalytical chemistry2026

Determination of biochemical and chemical oxygen demand in wastewater using UV-Vis and EEM spectroscopy coupled with chemometrics.

Ellisson H de Paulo, Matheus P B Moreira, Guilherme M da Silva, Otávio A Heringer, Paulo R Filgueiras, Marco F Ferrão

Abstract read
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In one paragraph

Article in Analytical and bioanalytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Ellisson H de PauloDepartment of Research and Development, Tommasi Ambiental, Rua Arara Azul, 187, Serra, Espírito Santo, Brazil, 29163-306. ellisson.paulo@ufrgs.br.ORCID http://orcid.org/0000-0001-9960-846X
Matheus P B MoreiraDepartment of Research and Development, Tommasi Ambiental, Rua Arara Azul, 187, Serra, Espírito Santo, Brazil, 29163-306.ORCID http://orcid.org/0009-0002-4405-0854
Guilherme M da SilvaDepartment of Research and Development, Tommasi Ambiental, Rua Arara Azul, 187, Serra, Espírito Santo, Brazil, 29163-306.ORCID http://orcid.org/0009-0007-5192-689X
Otávio A HeringerDepartment of Research and Development, Tommasi Ambiental, Rua Arara Azul, 187, Serra, Espírito Santo, Brazil, 29163-306.ORCID http://orcid.org/0000-0003-3742-8097
Paulo R FilgueirasCenter of Competence in Petroleum Chemistry - NCQP, Laboratory of Research and Development of Methodologies for Analysis of Oils - LabPetro, Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Vitória, Espírito Santo, Brazil, 29075-910.ORCID http://orcid.org/0000-0003-2617-1601
Marco F FerrãoInstitute of Chemistry, Federal University of Rio Grande Do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, Rio Grande Do Sul, Brazil, 90650-001. mfferrao@gmail.com.ORCID http://orcid.org/0000-0002-3332-0540

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 305459/2020-1Conselho Nacional de Desenvolvimento Científico e Tecnológico 409700/2022-3Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 001Fundação de Amparo à Pesquisa e Inovação do Espírito Santo 1036/2022 P: 2022-VZ8G9Fundação de Amparo à Pesquisa e Inovação do Espírito Santo 343/2023 P 2023-6SJG7Fundação de Amparo à Pesquisa e Inovação do Espírito Santo 442/2021Fundação de Amparo à Pesquisa e Inovação do Espírito Santo 691/2022 P: 2022-2DRM4
6 · The paper itself

Abstract

Monitoring water and wastewater quality is crucial for environmental management and public health, traditionally relying on physicochemical analyses such as biochemical oxygen demand (BOD) and chemical oxygen demand (COD). However, these conventional methods are time-consuming, costly, and generate toxic waste. In this study, ultraviolet-visible (UV-Vis) and excitation-emission matrix (EEM) fluorescence spectroscopy were combined with chemometric approaches to provide a rapid and sustainable alternative for effluent monitoring. Partial least squares (PLS), unfolded PLS (UPLS), and support vector regression (SVR) models were evaluated using treated wastewater (TWW), raw wastewater (RWW), and their combination. Results demonstrated that UPLS with EEM spectra achieved the best performance for BOD prediction (R

Indexed as

Biological Oxygen Demand AnalysisChemometricsWastewaterLeast-Squares AnalysisSpectrometry, FluorescenceSpectrophotometry, UltravioletWastewaterBOD and CODEEM fluorescencePLS and SVRUV-visWastewater

Identifiers

PMID41422151

What OpenQuestion holds

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Registered trials

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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.