Lemos VA - Search Results

1

Nutritional evaluation after copper cloud point extraction in spirulina (Arthrospira sp.) samples with determination by digital image colorimetry.

Cerqueira UMFM, Menezes RM, Nunes LS, Lemos VA, Novaes CG, Bezerra MA. Cerqueira UMFM, et al. Among authors: lemos va. Food Chem. 2025 Apr 1;470:142592. doi: 10.1016/j.foodchem.2024.142592. Epub 2024 Dec 26. Food Chem. 2025. PMID: 39787767

2

Multivariate optimization of a dispersive liquid-liquid microextraction method for determination of copper and manganese in coconut water by FAAS.

Trindade JS, Lemos VA, Mata Cerqueira UMF, Novaes CG, Araujo SA, Bezerra MA. Trindade JS, et al. Among authors: lemos va. Food Chem. 2021 Dec 15;365:130473. doi: 10.1016/j.foodchem.2021.130473. Epub 2021 Jun 26. Food Chem. 2021. PMID: 34237574

3

Flow injection preconcentration system using a new functionalized resin for determination of cadmium and nickel in tobacco samples.

Lemos VA, Novaes CG, Lima Ada S, Vieira DR. Lemos VA, et al. J Hazard Mater. 2008 Jun 30;155(1-2):128-34. doi: 10.1016/j.jhazmat.2007.11.039. Epub 2007 Nov 19. J Hazard Mater. 2008. PMID: 18155353

4

Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples.

Lemos VA, Baliza PX, de Carvalho AL, Oliveira RV, Teixeira LS, Bezerra MA. Lemos VA, et al. Talanta. 2008 Oct 19;77(1):388-93. doi: 10.1016/j.talanta.2008.06.046. Epub 2008 Jul 9. Talanta. 2008. PMID: 18804650

5

Synthesis of a new solid-phase extractor and its application to preconcentration and determination of lead in water samples.

Novaes CG, Santos JS, Ferreira SL, Lemos VA. Novaes CG, et al. Among authors: lemos va. J AOAC Int. 2010 Sep-Oct;93(5):1609-15. J AOAC Int. 2010. PMID: 21140674

6

Synthesis and application of a new thiazolylazo reagent for cloud point extraction and determination of cobalt in pharmaceutical preparations.

Yamaki RT, Nunes LS, de Oliveira HR, Araújo AS, Bezerra MA, Lemos VA. Yamaki RT, et al. Among authors: lemos va. J AOAC Int. 2011 Jul-Aug;94(4):1304-9. J AOAC Int. 2011. PMID: 21919361

7

Ultrasound-Assisted Emulsification Microextraction in an Online System for Determination of Cadmium in Water and Tea Samples.

Nunes LS, Lemos VA. Nunes LS, et al. Among authors: lemos va. J AOAC Int. 2018 Sep 1;101(5):1647-1652. doi: 10.5740/jaoacint.17-0128. Epub 2018 Mar 23. J AOAC Int. 2018. PMID: 29571304

8

A novel direct-immersion single-drop microextraction combined with digital colorimetry applied to the determination of vanadium in water.

Nunes LS, Korn MGA, Lemos VA. Nunes LS, et al. Among authors: lemos va. Talanta. 2021 Mar 1;224:121893. doi: 10.1016/j.talanta.2020.121893. Epub 2020 Nov 13. Talanta. 2021. PMID: 33379101 Free article.

9

Use of factorial design and Doehlert matrix for multivariate optimisation of an on-line preconcentration system for lead determination by flame atomic absorption spectrometry.

Ferreira SL, dos Santos WN, Bezerra MA, Lemos VA, Bosque-Sendra JM. Ferreira SL, et al. Among authors: lemos va. Anal Bioanal Chem. 2003 Feb;375(3):443-9. doi: 10.1007/s00216-002-1695-y. Epub 2003 Jan 29. Anal Bioanal Chem. 2003. PMID: 12589511

10

On-line preconcentration using a resin functionalized with 3,4-dihydroxybenzoic acid for the determination of trace elements in biological samples by thermospray flame furnace atomic absorption spectrometry.

Lemos VA, Bezerra MA, Amorim FA. Lemos VA, et al. J Hazard Mater. 2008 Sep 15;157(2-3):613-9. doi: 10.1016/j.jhazmat.2008.01.027. Epub 2008 Jan 17. J Hazard Mater. 2008. PMID: 18280033

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