Aplicação de programa computacional livre em planejamento de experimentos: um tutorial
FMV Pereira, ER Pereira-Filho - Química Nova, 2018 - SciELO Brasil
This tutorial intends to show to the readers a step-by-step guide to perform a factorial design
in their experiments. The examples used here cover most of doubts and questions related to …
in their experiments. The examples used here cover most of doubts and questions related to …
Natural products from marine invertebrates and microorganisms in Brazil between 2004 and 2017: still the challenges, more rewards
The Brazilian marine biodiversity represents a unique, yet underexplored resource of
biologically active compounds. This review provides an analysis of the development of …
biologically active compounds. This review provides an analysis of the development of …
[HTML][HTML] Lignocellulosic residues from the Brazilian juice processing industry as novel sustainable sources for bioenergy production: preliminary assessment using …
JLF Alves, EO Trindade, JCG da Silva… - Journal of the Brazilian …, 2020 - SciELO Brasil
This work aims to investigate the energy-related characteristics of apple bagasse, orange
bagasse and cashew-apple bagasse to identify their potential as bioenergy feedstocks. For …
bagasse and cashew-apple bagasse to identify their potential as bioenergy feedstocks. For …
[HTML][HTML] Colorimetric determination of ascorbic acid based on its interfering effect in the enzymatic analysis of glucose: an approach using smartphone image analysis
MS Coutinho, CLM Morais, ACO Neves… - Journal of the Brazilian …, 2017 - SciELO Brasil
The use of digital image analysis as an analytical tool is a reality nowadays, and the use of
smartphones stands out due to its high accessibility and practicality. Ascorbic acid (AA) is a …
smartphones stands out due to its high accessibility and practicality. Ascorbic acid (AA) is a …
[HTML][HTML] Phytochemical Analysis, Multi-Element Composition and Biological Activities of Extracts and Lupenone from Albizia inundata (Mart.) Barneby & JWGrimes
EMJ Andrade, JS Teixeira, DKC Silva… - Journal of the Brazilian …, 2020 - SciELO Brasil
In this study, antimicrobial activity of extracts and lupenone from A. inundata (Fabaceae,
Mimosoideae), were tested. In addition, the multi-element composition of the leaves, bark …
Mimosoideae), were tested. In addition, the multi-element composition of the leaves, bark …
Development of a disposable pipette extraction method using coffee silverskin as an adsorbent for chromium determination in wastewater samples by solid phase …
WR Silva, BES Costa, AD Batista, VN Alves… - Journal of the Brazilian …, 2022 - SciELO Brasil
A procedure using disposable pipette tips adapted for solid-phase extraction, known as DPX
SPE, was used as an alternative way for the chromium determination in wastewater …
SPE, was used as an alternative way for the chromium determination in wastewater …
[HTML][HTML] New multicomponent reaction for the direct synthesis of β-aryl-γ-nitroesters promoted by hydrotalcite-derived mixed oxides as heterogeneous catalyst
CRM D'Oca, FF Naciuk, JC Silva, EP Guedes… - Journal of the Brazilian …, 2017 - SciELO Brasil
A new approach based on multicomponent/domino combined reactions for the synthesis of γ-
nitroesters promoted by a mixed aluminium-magnesium oxides derived from hydrotalcite …
nitroesters promoted by a mixed aluminium-magnesium oxides derived from hydrotalcite …
A green extraction of trace iodine in table salts, vegetables, and food products prior to analysis by inductively coupled plasma optical emission spectrometry
N Limchoowong, P Sricharoen… - Journal of the Brazilian …, 2017 - SciELO Brasil
In this study, we report a new method for iodine extraction from table salts, vegetables, and
other food products using ultrasound-assisted extraction, prior to the iodine determination by …
other food products using ultrasound-assisted extraction, prior to the iodine determination by …
Use of mixture design with minimal restrictions to optimize an extraction procedure employing diluted acids assisted by ultrasound and microwave for nutrient element …
VC Costa, EGP Silva, DC Lima, M Franco… - Journal of the Brazilian …, 2018 - SciELO Brasil
In this work, it was developed an alternative analytical strategy for the preparation of vegetal
samples extracted with diluted acids and assisted by ultrasound and microwave radiation for …
samples extracted with diluted acids and assisted by ultrasound and microwave radiation for …
Processing of a metal concentrate from ground waste printed circuit boards in acidic media using hydrogen peroxide as oxidant
CSM Silva, GTC Zeba, CMR Rocha, PR Gismonti… - Química …, 2020 - SciELO Brasil
The recovery of precious and base metals of a metal concentrate from ground waste printed
circuit boards (PCBs) is described in detail. Samples were treated with NaOHaq. to remove …
circuit boards (PCBs) is described in detail. Samples were treated with NaOHaq. to remove …