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10. A Voltammetric Approach for the Simultaneous Determination of Cd and Pb in Water Applying Carbon Paste Electrode Modified with Bismuth Film

Author

de Oliveira, Cristiane, Maciel, Juliana Villela, Christ-Ribeiro, Anelise, Guarda, Ananda, and Dias, Daiane

Subjects
Merck & Company Inc., Bismuth -- Analysis, Chemistry
Abstract

This study reports the simultaneous voltammetric determination of Cd and Pb by square wave voltammetry (SWV) using carbon paste electrode modified with bismuth film. For the ex situ film formation, the influence of Bi concentration, time and deposition potential was evaluated. Regarding the SWV parameters, frequency, amplitude, deposition time and deposition potential were evaluated. The ideal conditions of film formation were achieved with 1 mg/L Bi applying -0.6 V during 300 s (0.01 M acetate buffer, pH 4.6). The highest current values of Cd and Pb were obtained in 0.01 M acetate buffer (pH 4.6) with deposition potential of -1.1 V, time deposition of 180 s, frequency of 40 Hz, amplitude of 40 mV and potential step of 0.005 V. The detection limits calculated for Cd and Pb were 0.5 and 0.3 [micro]g/L, respectively, and the method was successfully applied to the analysis of commercial potable water., Author(s): Cristiane de Oliveira [sup.1], Juliana Villela Maciel [sup.1], Anelise Christ-Ribeiro [sup.1], Ananda Guarda [sup.2], Daiane Dias [sup.1] Author Affiliations: (1) grid.411598.0, 0000 0000 8540 6536, Laboratório de Eletroespectro Analítica [...]

Published
2022
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31. EQUIPE DE ENFERMAGEM: EFEITOS DA DUPLA JORNADA DE TRABALHO.

Author

de Almeida Dias, Daiane, Marciano, Mayara, Fontana Pacheco, Talita, Cristine Leite, Thuany, and Kiefer Moraes, Cladis Loren

Subjects
LITERATURE reviews, TEAM nursing, MALE nurses, WORKING hours, PROFESSIONS
Abstract

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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48. Citotoxic activity evaluation of essential oils and nanoemulsions of Drimys angustifolia and D. brasiliensis on human glioblastoma (U-138 MG) and human bladder carcinoma (T24) cell lines in vitro

Author

Gomes, Madson R.F., Schuh, Roselena S., Jacques, Ana L.B., Augustin, Otávio A., Bordignon, Sérgio A.L., Dias, Daiane O., Kelmann, Regina G., Koester, Letícia S., Gehring, Marina. P., Morrone, Fernanda B., Campos, Maria M., and Limberger, Renata P.

Published
2013
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50. PRODUÇÃO DE MUDAS DE MARACUJAZEIRO-AMARELO EM DIFERENTES NÍVEIS DE IRRIGAÇÃO E FORMULAÇÕES DE SUBSTRATO

Author

Ricardo Dias, Daiane, Brito deFaria, Igor kawai, Santos Conceição do Vale, Beatriz, do Vale Santana, José Antonio, and Rodrigues Salles Junior, Jair

Subjects
passionfruit, Substrates, irrigation, maracujá, substratos, irrigação
Abstract

Producing quality passion fruit seedlings is of fundamental importance to enable the successful implantation of the crop, for this it is necessary that they are healthy and vigorous. The objective of the work was to evaluate the development of yellow passion fruit seedlings, submitted to different substrates and irrigation depths. The design was completely randomized (DIC), 5 x 3. The treatments consisted of 5 substrates (1-soil and commercial substrate, 2-soil and corral manure, 3-soil, commercial substrate and corral manure, 4- soil and 5- substrate), and 3 irrigation blades, blade 1: 70%, 2: 100% and 3: 130% of field capacity. Average germination time, germination speed index, height, stem diameter and number of leaves of each plot at 30 and 60 days after germination, green matter of the aerial part, dry matter of the aerial part, green matter of root and root dry matter at 60 days after germination. The treatment that presents the best response in the growth of yellow passion fruit seedlings was the soil + substrate composition, it does not modify any influence of the different irrigation depths to which it was subjected, being able to be reduced by 30% of the field capacity., Produzir mudas de maracujá com qualidade é de fundamental importância para viabilizar o sucesso de implantação da cultura, para isso é preciso que as mesmas sejam sadias e vigorosas. Objetivou-se avaliar o desenvolvimento de mudas de maracujá-amarelo, submetidas a diferentes substratos e lâminas de irrigação. O delineamento foi inteiramente casualizado, de 5 x 3. Os tratamentos foram compostos por 5 substratos (1- solo e substrato comercial; 2- solo e esterco de curral; 3- solo, substrato comercial e esterco de curral; 4- solo; 5- substrato comercial) e 3 lâminas de irrigação (70, 100 e 130% da capacidade de campo), com 3 repetições para cada tratamento (compostas por 4 plantas úteis cada). Avaliou-se: tempo médio de germinação, índice de velocidade de germinação, altura, diâmetro do caule e número de folhas de cada parcela aos 30 e 60 dias após a germinação, matéria verde da parte área, matéria seca da parte aérea, matéria verde de raiz e matéria seca de raiz aos 60 dias após germinação. O tratamento que apresentou melhor resposta no crescimento das mudas de maracujazeiro-amarelo foi a composição solo + substrato, não apresentando qualquer influência das diferentes lâminas de irrigação à que foi submetida, podendo ser reduzida em 30% da capacidade de campo. Palavras-chave: Passiflora edulis Sims, substratos, irrigação, Production of yellow passion fruit seedlings in different irrigation levels and substrate formulations ABSTRACT: Producing quality passion fruit seedlings is of fundamental importance to enable the successful implementation of the culture, for this it is necessary that they are healthy and vigorous. The objective was to evaluate the development of yellow passion fruit seedlings, submitted to different substrates and irrigation depths. The design was completely randomized, 5 x 3. The treatments were composed of 5 substrates (1- soil and commercial substrate, 2- soil and barnyard manure, 3- soil, commercial substrate and barnyard manure, 4- soil and 5 - commercial substrate), and 3 irrigation depths, depth 1: 70%, 2: 100% and 3: 130% of field capacity with 3 repetitions for each treatment, each repetition consisted of 4 useful plants. The mean germination time, germination speed index, height, stem diameter and number of leaves in each plot at 30 and 60 days after germination, green matter of the aerial part, dry matter of the aerial part, green matter of root and root dry matter at 60 days after germination. The treatment that showed the best response in the growth of yellow passion fruit seedlings was the soil + substrate composition, not showing any influence of the different irrigation depths to which, it was submitted, which could be reduced by 30% of the field capacity. Keywords: Passiflora edulis Sims; substrates; irrigation.

Published
2022

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