Elfrides Eva Scherman Schapoval

Universidade Federal do Rio Grande do Sul

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Martin Steppe

Universidade Federal do Rio Grande do Sul

Cássia Virgínia Garcia

Universidade Federal do Rio Grande do Sul

Clésio Soldateli Paim

Universidade Federal do Pampa

Amélia Teresinha Henriques

Universidade Federal do Rio Grande do Sul

Andreas Sebastian Loureiro Mendez

Universidade Federal do Rio Grande do Sul

Nádia Maria Volpato

Universidade Federal do Rio Grande do Sul

Amélia T. Henriques

Universidade Federal do Rio Grande do Sul

Diogo Miron

Universidade Federal do Rio Grande do Sul

Marcos Sobral

Federal University of São João del-Rei

Tércio Paschke Oppe

Universidade Federal do Rio Grande do Sul

Cooperative Institutions

Universidade Federal do Rio Grande do Sul

218

Universidade Federal do Rio Grande

Universidade Federal de Santa Maria

Instituto de Ciências Farmacêuticas

Universidade de São Paulo

University of Rio Grande and Rio Grande Community College

Universidade Federal do Pampa

Universidade Federal de Santa Catarina

Universidade Federal de Ciências da Saúde de Porto Alegre

Hospital de Clínicas de Porto Alegre

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Síntese e ensaio in vivo de ésteres da indometacina: desenvolvimento de aula prática em Química Medicinal para alunos de pós-graduação

Latin American Journal of Pharmacy (2008)

Letícia Cruz Cedric Stephan Graebin Alice Fialho Viana Ângelo L. S. Piato Daniela Dal Molim Ghisleni

Source

Cite

Citations (0)

Increasing sodium pantoprazole photostability by microencapsulation: Effect of the polymer and the preparation technique

European Journal of Pharmaceutics and Biopharmaceutics (2008)

Renata Platcheck Raffin Letícia Marques Colomé Elfrides Eva Scherman Schapoval Adriana Raffin Pohlmann Sı́lvia Stanisçuaski Guterres

Pharmaceutical technology

Pantoprazole

Microparticle

Sodium alginate

10.1016/j.ejpb.2008.01.024

Cite

Citations (41)

Antimicrobial activity of some Hypericum species

Phytomedicine (2003)

Rodrigo Dall’Agnol Alexandre de Barros Falcão Ferraz Ana Paula Machado Bernardi Daniela Vicentini Albring Carolina Nör

Quercitrin

Hyperoside

Hypericum

Tannin

10.1078/094471103322331476

Cite

Citations (190)

Characterization of the antibiotic doripenem using physicochemical methods: chromatography, spectrophotometry, spectroscopy and thermal analysis

Química Nova (2011)

Andreas Sebastian Loureiro Mendez Luciano Mantovani Fábio de Souza Barbosa Carla T. M Sayago Cássia Virgínia Garcia

Doripenem was characterized through physicochemical and spectroscopic techniques, as well as thermal analysis. TLC (Rf = 0.62) and HPLC (rt = 7.4 min) were found to be adequate to identify the drug. UV and infrared spectra showed similar profile between doripenem bulk and standard. The ¹H and 13C NMR analysis revealed chemical shifts that allowed identifying the drug. Thermal analysis demonstrated three steps with mass loss, at 128, 178 and 276 ºC. The work was successfully applied to qualitative analysis of doripenem, showing the reported methods can be used for physicochemical characterization of doripenem

Doripenem

Characterization

Quantitative Analysis

Qualitative analysis

10.1590/s0100-40422011000900024

Cite

Citations (8)

Determination of dexamethasone acetate in cream by HPLC

Journal of Pharmaceutical and Biomedical Analysis (2003)

Cássia Virgínia Garcia Ana R Breier Martin Steppe Elfrides Eva Scherman Schapoval Tércio Paschke Oppe

Quantitative Analysis

Relative standard deviation

Standard curve

Accuracy and precision

Coefficient of variation

10.1016/s0731-7085(02)00695-7

Cite

Citations (46)

Ensaios da atividade inibitoria de substancias isoladas de stachytarpheta cayennensis frente aos mediadores quimicos da inflamação

Raquel Bridi Mara Rubia Winter de Vargas Elfrides Eva Scherman Schapoval Amélia Teresinha Henriques

Source

Cite

Citations (0)

Ensaios biológicos com chaptalia nutans

V.J.W. Aurelio Cristiane B. da Silva Marisa Fratini Amélia Teresinha Henriques Elfrides Eva Scherman Schapoval

Source

Cite

Citations (0)

Dissolution Test for Mianserin Hydrochloride in Tablets

Drug Analytical Research (2019)

Letícia Lenz Sfair Caren Gobetti Martin Steppe Elfrides Eva Scherman Schapoval

A dissolution test for mianserin hydrochloride in coated tablets containing 30 mg was developed and validated using a fast ultraviolet spectrophotometric method. The appropriate conditions were determinate after testing sink conditions, agitation spped and dissolution medium. The sink conditions tested showed that mianserin hydrochloride was soluble in 0.01 and 0.1 M hydrochloric acid (HCl), acetate buffer pH 4.1 and 5.0 and phosphate buffer pH 6.8. Then, dissolution tests were performed to investigate the drug release in each medium. Optimal conditions to carry out the dissolution test were 900 mL 0.1 M HCl and USP apparatus 2 (paddle) at 50 rpm stirring speed. The quantification method was also adapted and validated. The UV method showed specificity, linearity, precision and accuracy. The in vitro dissolution test can be used to evaluate the drug release profile and the data was used as an aid to establish a possible correlation with in vivo data.

Hydrochloric acid

Phosphate buffered saline

10.22456/2527-2616.97029

Cite

Citations (0)

Ensaios biológicos com extratos de Aloysia triphylla

Cristiane B. da Silva Marisa Fratini V.J.W. Aurelio Amélia Teresinha Henriques Elfrides Eva Scherman Schapoval

Source

Cite

Citations (0)

Doseamento microbiologico do norfloxacino . Metodo da difusao em agar ( cilindros em placas )

Revista de ciencias farmaceuticas (1990)