Go to:
Logótipo
Você está em: Start > Publications > View > QUANTIFICATION OF USNIC ACID IN USNEA-FLORIDA BY DENSITOMETRIC HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY
Publication

QUANTIFICATION OF USNIC ACID IN USNEA-FLORIDA BY DENSITOMETRIC HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY

Title
QUANTIFICATION OF USNIC ACID IN USNEA-FLORIDA BY DENSITOMETRIC HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY
Type
Article in International Scientific Journal
Year
1991
Authors
polonia, maj
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
carneiro, af
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
pinto, mmm
(Author)
FFUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
Journal
Vol. 14
Pages: 1447-1452
ISSN: 1082-6076
Publisher: Taylor & Francis
Other information
Authenticus ID: P-001-R5H
Abstract (EN): A densitometric HPTLC method was developed for the direct quantification of usnic acid in the lichen Usnea florida. The method involved a separation of usnic acid on a HPTLC palte in an appropriate eluent and in situ scanning of samples and standard zones. The percent recoveries for added usnic acid to samples were 102.75 to 106.29 % respectively. Both regression lines and correlation coefficients were used in calculation of usnic acid concentration in chloroform extract and in recovery rates.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 6
Documents
We could not find any documents associated to the publication.
Related Publications

Of the same journal

Validation of a Micromethod for Quantification of Lutein and β-Carotene in Olive Oil (2008)
Article in International Scientific Journal
Lúcia Maia ; Susana Casal; M. Beatriz P. P. Oliveira
Validation of a micromethod for quantification of lutein and beta-carotene in olive oil (2008)
Article in International Scientific Journal
Lúcia Maia; Susana Casal; M. Beatriz Oliveira; Paula Oliveira
The development and evaluation of an HPLC-DAD method for the analysis of the phenolic fractions from in vivo and in vitro biomass of Hypericum species (1999)
Article in International Scientific Journal
Dias, ACP; Seabra, RM; Andrade, PB; Fernandes Ferreira, M
Simultaneous determination of sugars, uric and orotic acids in infant formulae by HPLC-UV/RI (1997)
Article in International Scientific Journal
Ferreira, IMPLVO; Ferreira, MA
Simultaneous determination of flavonoids, phenolic acids, and coumarins in seven medicinal species by HPLC/diode-array detector (1998)
Article in International Scientific Journal
Andrade, PB; Seabra, RM; Valentao, P; Areias, F

See all (36)

Recommend this page Top
Copyright 1996-2024 © Faculdade de Arquitectura da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z  I Guest Book
Page created on: 2024-11-09 at 09:43:21 | Acceptable Use Policy | Data Protection Policy | Complaint Portal