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Valfredo Azevedo Lemos

Universidade Estadual do Sudoeste da Bahia

43H指数
160论文数
5.3K被引数
收录论文 93
发表时间
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Magnetic Deep Eutectic Solvent-Based Vortex-Assisted Liquid-Phase Microextraction for Mercury Determination in Seafood Samples磁性深共晶溶剂辅助涡流辅助液相微萃取用于海产品样品中汞的测定
errFood Analytical Methods
IF3
err2026-09-17
err0
errOAAI
errRosivan dos Santos de Assis; Luana Bastos Santos; Márcio Souza Santos; Alexilda Oliveira de Souza; Valfredo Azevedo Lemos
err分享
err收藏
Green switchable-hydrophilicity solvent microextraction for sustainable mercury determination in seafood samples绿色可切换亲水性溶剂微萃取技术在可持续测定海产品样品中汞的应用
errSustainable Chemistry and Pharmacy
IF5.8
err2026-05-01
err0
PREAI
errde Assis, Rosivan dos Santos; Santos, Luana Bastos; dos Santos, Marcio Jose Silva; Lemos, Valfredo Azevedo
err分享
err收藏
Health risk assessment of trace elements in chicken liver samples sold in Salvador, Brazil巴西萨尔瓦多市售鸡肉肝脏中微量元素的健康风险评估
errJournal of Food Composition and Analysis
IF4.6
err2026-04-13
err0
errOAAI
errJoselanio Jesus Coutinho; Luana Bastos Santos; Anderson Silva Melo; Caio Silva Assis Felix; Ivanice Ferreira dos Santos; Valfredo Azevedo Lemos; Sergio Luis Costa Ferreira
err分享
err收藏
Health Risk Assessment of Chemical Elements in Drinking Water Consumed in a Brazilian City Impacted by Mining Activities
errWater
IF3
err2026-01-25
err0
errOAAI
errAdilio M. Santos; Joselanio J. Coutinho; Sarah A. R. Soares; Olivia M. C. de Oliveira; Antonio F. S. Queiroz; Valfredo A. Lemos; Sergio L. C. Ferreira
err分享
err收藏
Optimization of a Closed Inline Photochemical System Using UV and Hydrogen Peroxide for Textile Dyes Degradation in Wastewater利用UV和过氧化氢对闭式在线光化学系统进行优化，用于废水中的纺织染料降解
errANALYTICAL LETTERS
IF1.8
err2025-09-01
err0
PREAI
errAraujo, Rodrigo J.; Muller, Tiago P.; Coutinho, Joselanio J.; Pavani Filho, Aristides; Lemos, Valfredo A.; Ferreira, Sergio L. C.
err分享
err收藏
A review of the use of central composite design in the optimization of procedures aiming at food chemical analysis对中央复合设计在旨在食品化学分析程序优化的应用回顾
errFOOD CHEMISTRY
IF9.8
err2025-07-01
err0
PREAI
errAlmeida, Erica Raina Venancio; Melo, Anderson Silva; Lima, Adriana Silva; Lemos, Valfredo Azevedo; Oliveira, Geovane Silva; Cletche, Clinzen Fona; Souza, Anderson Santos; Bezerra, Marcos Almeida
err分享
err收藏
Preparation and characterization of new reference material for inorganic analysis of pumpkin seed flour - An interlaboratory program南瓜籽粉无机分析用新参考材料的制备与表征——一项实验室间合作计划
errFOOD CHEMISTRY
IF9.8
err2025-06-01
err0
PREAI
errAzevedo, Ravena S. A.; dos Santos, Liz O.; Chagas, Adriano V. B.; Felix, Caio S. A.; de Andrade, Jailson B.; Melo, Vanessa S. C.; Santos, Adilson S.; Aleluia, Augusto C. M.; Santos, Leilane R.; Korn, Maria G. A.; Silva, Isaac M. J.; dos Santos, Walter N. L.; Queiroz Junior, Edvaldo P.; Teixeira, Leonardo S. G.; Araujo, Rennan G. O.; dos Santos, Daniele C. M. B.; de Melo, Joelem C.; Soares, Sarah A. R.; Maia, Djalma L. de S.; Avila, Dayara V. L.; da Costa, Silvanio S. L.; de Almeida, Tarcisio S.; de Amorim, Artur M.; Lemos, Valfredo A.; Coutinho, Joselanio J.; de Oliveira, Fernando M.; Lima, Adriana S.; Ferreira, Sergio L. C.
err分享
err收藏
Nutritional evaluation after copper cloud point extraction in spirulina (Arthrospira sp.) samples with determination by digital image colorimetry螺旋藻（Arthrospira sp.）样品经铜云点萃取后的营养评估，并通过数字图像比色法进行测定
errFOOD CHEMISTRY
IF9.8
err2025-04-01
err0
PREAI
errCerqueira, Uillian Mozart Ferreira Mata; Menezes, Rebeca Moraes; Nunes, Leane Santos; Lemos, Valfredo Azevedo; Novaes, Cleber Galva o
err分享
err收藏
Green chemistry-based strategies for liquid-phase microextraction and determination of mercury species
errTRENDS IN ENVIRONMENTAL ANALYTICAL CHEMISTRY
IF13.4
err2024-12-01
err0
PREAI
errAssis, Rosivan Santos; Barreto, Jeferson Alves; Santos, Marcio JoseSilva; Silva, Uneliton Neves; Amazonas, Victor Miranda; Cletche, Clinzen Fona; Bezerra, Marcos Almeida; Lemos, Valfredo Azevedo
err分享
err收藏
Green chemistry advances: Integrating digital images and microextraction
errTRAC-TRENDS IN ANALYTICAL CHEMISTRY
IF12
err2024-12-01
err0
PREAI
errSantos, Luana Bastos; Barreto, Jeferson Alves; Coutinho, Joselanio Jesus; Ferreira, Sergio Luis Costa; Assis, Rosivan Santos; Lemos, Valfredo Azevedo
err分享
err收藏
Switchable-hydrophilicity solvents in liquid-phase microextraction for metal and metalloid determination towards green chemistry
errTRAC-TRENDS IN ANALYTICAL CHEMISTRY
IF12
err2024-06-01
err6
PREAI
errSantos, Luana Bastos; Melo, Anderson Silva; Santos, Marcio Jose; Santos, Adilio Macedo; Ferreira, Sergio Luis Costa; Lemos, Valfredo Azevedo
err分享
err收藏
Sample preparation strategies alternative to mineralization for elemental analysis in foods by spectroanalytical techniques - A review
errMICROCHEMICAL JOURNAL
IF5.1
err2024-04-01
err4
PREAI
errAssis, Rosivan Santos; Silva, Uneliton Neves; Santos, Luana Bastos; Melo, Anderson Silva; Coutinho, Joselanio Jesus; Cerqueira, Uillian Mozart Ferreira Mata; Lemos, Valfredo Azevedo; Bezerra, Marcos Almeida
err分享
err收藏
Switchable-hydrophilicity solvent-based liquid phase microextraction for determination of brilliant green in water, shellfish, and fish samples
errMICROCHEMICAL JOURNAL
IF5.1
err2024-01-01
err4
PREAI
errCoutinho, Joselanio Jesus; Santos, Luana Bastos; Melo, Anderson Silva; Barreto, Jeferson Alves; Lemos, Valfredo Azevedo
err分享
err收藏
Application of human health risk indices in assessing contamination from chemical elements in food samples人体健康风险指数在食品化学元素污染评价中的应用
errTRAC-TRENDS IN ANALYTICAL CHEMISTRY
IF12
err2023-10-01
err10
PREAI
errFerreira, Sergio L. C.; Cerda, Victor; Cunha, Francisco A. S.; Lemos, Valfredo A.; Teixeira, Leonardo S. G.; dos Santos, Walter N. L.; Coutinho, Joselanio D. J.; Porto, Icaro S. de A.; de Jesus, Rafael F.
err分享
err收藏
New approaches of slurry sampling as an alternative technique of sample preparing for elemental analysis浆料取样的新方法作为元素分析样品制备的替代技术
errTRAC-TRENDS IN ANALYTICAL CHEMISTRY
IF12
err2023-10-01
err6
PREAI
errCerqueira, Uillian Mozart Ferreira Mata; Bezerra, Marcos Almeida; Lemos, Valfredo Azevedo; Coutinho, Joselanio Jesus; Novaes, Cleber Galvao; Araujo, Sulene Alves; do Nascimento, Lays Pereira
err分享
err收藏
Automated flow systems for total and isotopic analysis of uranium and thorium in samples of environmental interest-A review
errTRAC-TRENDS IN ANALYTICAL CHEMISTRY
IF12
err2023-09-01
err3
PREAI
errAvivar, Jessica; Felix, Caio S. A.; Lemos, Valfredo A.; Araujo, Rennan G. O.; Ferreira, Sergio L. C.; Cerda, Victor
err分享
err收藏
Dynamic reversed-phase liquid-liquid microextraction for the determination of Cd, Cr, Mn, and Ni in vegetable oils by energy dispersive X-ray fluorescence spectrometry
errJOURNAL OF FOOD COMPOSITION AND ANALYSIS
IF4.6
err2023-04-01
err13
errOAAI
errFerreira, Vanessa J.; Lemos, Valfredo A.; Teixeira, Leonardo S. G.
err分享
err收藏
Deep eutectic solvent in ultrasound-assisted liquid-phase microextraction for determination of vanadium in food and environmental waters
errMICROCHEMICAL JOURNAL
IF5.1
err2022-09-01
err8
PREAI
errLemos, Valfredo Azevedo; Santos, Luana Bastos; Assis, Rosivan Santos
err分享
err收藏
Liquid-phase extraction combined with X-ray fluorescence spectrometry for the elemental determination液相萃取结合x射线荧光光谱法测定元素
errAPPLIED SPECTROSCOPY REVIEWS
IF5.4
err2022-08-24
err4
PREAI
errFerreira, Vanessa J.; Virgens, Fernanda B. S.; Pires, Lais N.; Dias, Fabio de S.; Lemos, Valfredo A.; Teixeira, Leonardo S. G.
err分享
err收藏
A new green method employing ultrasonic-assisted liquid-phase microextraction and digital imaging colorimetry for the determination of mefenamic acid in medicinal products
errMICROCHEMICAL JOURNAL
IF5.1
err2022-08-01
err4
PREAI
errNepomuceno, Ana Flavia Souto Figueiredo; Lemos, Valfredo Azevedo; dos Santos, Liz Oliveira
err分享
err收藏

研究方向

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合作学者
合作期刊
M
Mustafa Soylak
H 指数: 107 · 论文数: 969
B
Bernhard Welz
H 指数: 61 · 论文数: 322
S
Sérgio L.C. Ferreira
H 指数: 59 · 论文数: 450
V
Vı́ctor Cerdà
H 指数: 51 · 论文数: 515
J
José Barbosa
H 指数: 49 · 论文数: 231
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