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1

Application of HPLC-PBMS to the identification of unknown components in a triterpenoid fraction of Arbutus unedo fruits

Elvira M. S. M. Gaspar, Higuinaldo J. Chaves das Neves, João P. Noronha

Journal:

Journal of Separation Science

Year:

1997

Language:

english

File:

PDF, 368 KB

english, 1997

2

On the application of supercritical fluid extraction to the deacidification of olive oils

M. Gonçalves, A. M. P. Vasconcelos, E. J. S. Gomes de Azevedo, H. J. Chaves das Neves, M. Nunes da Ponte

Journal:

Journal of the American Oil Chemists' Society

Year:

1991

Language:

english

File:

PDF, 582 KB

english, 1991

3

Identification of active compounds in wheat straw extracts with allelopathic activity by HRGC-MS and HRGC-FTIR

Higuinaldo J. Chaves das Neves, Elvira M. Monteiro Gaspar

Journal:

Journal of Separation Science

Year:

1990

Language:

english

File:

PDF, 438 KB

english, 1990

4

Determination of lactulose and mannitol in urine by HRGC

Angela M. S. Relva, Higuinaldo J. Chaves das Neves, Margarida A. Ferreira

Journal:

Journal of Separation Science

Year:

1995

Language:

english

File:

PDF, 250 KB

english, 1995

5

Capillary gas chromatography of amino acids, including asparagine and glutamine: sensitive gas chromatogaphic—mass spectrometric and selected ion monitoring gas chromatographic—mass spectrometric detection of the N,O(S)-tert.-butyldimethylsilyl derivatives

H.J.Chaves Das Neves, A.M.P. Vasconcelos

Journal:

Journal of Chromatography A

Year:

1987

Language:

english

File:

PDF, 658 KB

english, 1987

6

Robust decentralized controller for minimizing coupling effect in single inductor multiple output DC-DC converter operating in continuous conduction mode

Medeiros, Renan Landau Paiva de, Barra, Walter, Bessa, Iury Valente de, Chaves Filho, João Edgar, Ayres, Florindo Antonio de Cavalho, Neves, Cleonor Crescêncio das

Journal:

ISA Transactions

Year:

2018

Language:

english

File:

PDF, 7.07 MB

english, 2018

7

Characterization of Saccharomyces Sp. through determination of amino acid profiles by capillary gas chromatography

A. M. P. Vasconcelos, H. J. Chaves Das Neves

Journal:

Journal of Separation Science

Year:

1985

Language:

english

File:

PDF, 309 KB

english, 1985

8

Single derivatives for GC-MS assay of reducing sugars and selective detection by the nitrogen-phosphorus detector (NPD)

H. J. Chaves das Neves, A. M. V. Riscado, H. Frank

Journal:

Journal of Separation Science

Year:

1986

Language:

english

File:

PDF, 414 KB

english, 1986

9

Capillary gas chromatography of amino acids as their tert-butyldimethylsilyl derivatives in the analysis of serum amino acids in metabolic diseases

H. J. Chaves Das Neves, A. M. P. Vasconcelos, J. Rueff Tavares, P. Nogueira Ramos

Journal:

Journal of Separation Science

Year:

1988

Language:

english

File:

PDF, 397 KB

english, 1988

10

Characterization of fatty oils by pattern recognition of triglycerides profiles

H. J. Chaves Das Neves, A. M. P. Vasconcelos

Journal:

Journal of Separation Science

Year:

1989

Language:

english

File:

PDF, 377 KB

english, 1989

11

Use of computerized pattern recognition of triglyceride profiles in monitoring SCF-CO2 extraction of fatty oils

A. M. P. Vasconcelos, M. Gonçalves, E. J. S. Gomes de Azevedo, M. Nunes da Ponte, H. J. Chaves das Neves

Journal:

Journal of Separation Science

Year:

1989

Language:

english

File:

PDF, 402 KB

english, 1989

12

Sequential determination of sugar units in reducing disaccharides by capillary gas chromatography/Fourrier-transform infrared spectroscopy

H. J. Chaves das Neves, A. M. V. Riscado

Journal:

Journal of Separation Science

Year:

1989

Language:

english

File:

PDF, 370 KB

english, 1989

13

HRGC of wine free amino acids as a tool for elementary wine characterization

Ana M. P. Vasconcelos, Higuinaldo J. Chaves das Neves

Journal:

Journal of Separation Science

Year:

1990

Language:

english

File:

PDF, 437 KB

english, 1990

14

A simple and rapid method for the study of triglyceride fatty acid profiles in human serum by capillary gas chromatography

Higuinaldo J. Chaves das Neves, Ana M. P. Vasconcelos, Olivia Vasconcelos

Journal:

Journal of Separation Science

Year:

1990

Language:

english

File:

PDF, 398 KB

english, 1990

15

Capillary gas chromatography of tert-butyldimethlysilylamino acids with PTV injection

H. J. Chaves das Neves, A. M. P. Vasconcelos

Journal:

Journal of Separation Science

Year:

1991

Language:

english

File:

PDF, 482 KB

english, 1991

16

Recovery of amino acids from resin- and silica-bonded cation exchangers in sample preparation for HRGC

Zilda Braga de Morais, Ana Maria P. Vasconcelos, Higuinaldo J. Chaves das Neves

Journal:

Journal of Separation Science

Year:

1994

Language:

english

File:

PDF, 373 KB

english, 1994

17

HRGC-MS and HPLC-MS identification of new ketosterols in an extract of wheat straw

Higuinaldo J. Chaves das Neves, Elvira M. M. S. Gaspar

Journal:

Journal of Separation Science

Year:

1995

Language:

english

File:

PDF, 414 KB

english, 1995

18

A new method for the chiral HRGC assay of L-2-hydroxyglutaric acid in urine

Higuinaldo J. Chaves das Neves, João Paulo Noronha, Helena Rufino

Journal:

Journal of Separation Science

Year:

1996

Language:

english

File:

PDF, 387 KB

english, 1996

19

HPLC assay of underivatized free amino acids with column switching and evaporative light-scattering detection

Higuinaldo J. Chaves das Neves, Zilda Braga Morais

Journal:

Journal of Separation Science

Year:

1997

Language:

english

File:

PDF, 412 KB

english, 1997

20

Differentiation of strawberry varieties through purge-and-trap HRGC-MS, HRGC-FTIR and principal component analysis

Marco D. R. Gomes da Silva, Higuinaldo J. Chaves das Neves

Journal:

Journal of Separation Science

Year:

1997

Language:

english

File:

PDF, 728 KB

english, 1997

21

Bioequivalence assessment of diltiazem preparations by means of discriminant analysis of data from solid-phase extraction and liquid chromatography

Higuinaldo J. Chaves Das Neves, Marco D.R. Gomes da Silva, M.P. Rocha

Journal:

Journal of Pharmaceutical and Biomedical Analysis

Year:

1991

Language:

english

File:

PDF, 503 KB

english, 1991

22

Photochemical and thermal degradation of anthocyanidins

Paula Furtado, Paulo Figueiredo, Higuinaldo Chaves das Neves, Fernando Pina

Journal:

Journal of Photochemistry and Photobiology A: Chemistry

Year:

1993

Language:

english

File:

PDF, 431 KB

english, 1993

23

Organic metabolites in exhaled human breath—A multivariate approach for identification of biomarkers in lung disorders

Elvira M. Gaspar, Ana F. Lucena, J. Duro da Costa, H. Chaves das Neves

Journal:

Journal of Chromatography A

Year:

2009

Language:

english

File:

PDF, 548 KB

english, 2009

24

Derivatives for the analysis of monosaccharides by capillary g.l.c.: trimethylsilylated deoxy(methoxy-amino)alditols

H.J. Chaves das Neves, A.M.V. Riscado, Hartmut Frank

Journal:

Carbohydrate Research

Year:

1986

Language:

english

File:

PDF, 376 KB

english, 1986

25

Capillary gas chromatography of reducing disaccharides with nitrogen-selective detection and selected-ion monitoring of permethylated deoxy(methylmethoxyamino)alditol glycosides

H.J. Chaves Das Neves, A.M.V. Riscado

Journal:

Journal of Chromatography A

Year:

1986

Language:

english

File:

PDF, 618 KB

english, 1986

26

A new cytokinin from the fruits of zantedeschia aethiopica

H.J. Chaves Das Neves, M.S.S. Pais

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 235 KB

english, 1980

27

The S→O acyl shift in S-acylthiol S-oxides mixed sulphonic acid carboxylic acid anhydrides from thiolesters

M.J.Sousa Lobo, H.J.Chaves das Neves

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 224 KB

english, 1978

28

S-acyl S-acyloxysulphonium ions: A new pummerer-type rearrangement-fragmentation reaction

H.J. Chaves das Neves, M.F. Machete

Journal:

Tetrahedron Letters

Year:

1977

Language:

english

File:

PDF, 207 KB

english, 1977

29

Leucine supplementation combined with resistance exercise improves the plasma lipid profile of dexamethasone-treated rats

Humberto Nicastro, Claudia R da Luz, Daniela FS Chaves, William das Neves, Kerolyn S Valente, Antonio H Lancha

Journal:

Lipids in Health and Disease

Year:

2012

Language:

english

File:

PDF, 209 KB

english, 2012

30

Differentiation of ten pine species from central portugal by monoterpene enantiomer-selective composition analysis using multidimensional gas chromatography

M. D. R. Gomes da Silva, E. P. Mateus, J. Munhá, A. Drazyk, M. H. Farrall, M. Rosa Paiva, H. J. Chaves das Neves, A. Mosandl

Journal:

Chromatographia

Year:

2001

Language:

english

File:

PDF, 509 KB

english, 2001

31

A gas-chromatographic method for identification of the reducing units of disaccharides via reduction of the methoximes with borane

Higuinaldo José Chaves das Neves, Ernst Bayer, Günter Blos, Hartmut Frank

Journal:

Carbohydrate Research

Year:

1982

Language:

english

File:

PDF, 311 KB

english, 1982

32

Use of borane as reducing agent in sequence analysis of peptides by gas chromatography-mass spectrometry

Hartmut Frank, Higuinaldo José Chaves Das Neves, Ernst Bayer

Journal:

Journal of Chromatography A

Year:

1978

Language:

english

File:

PDF, 442 KB

english, 1978

33

Gas chromatography of monosaccharides: formation of a single derivative for each aldose

Hartmut Frank, Higuinaldo José Chaves Das Neves, Ernst Bayer

Journal:

Journal of Chromatography A

Year:

1981

Language:

english

File:

PDF, 468 KB

english, 1981

34

Oxidation of thiolesters : Some aspects of the chemistry of s-acylthiol s-oxides and related compounds

Higuinaldo José Chaves Das Neves, Lício Da Silveira Godinho

Journal:

Year:

1979

Language:

english

File:

PDF, 659 KB

english, 1979

35

Recognition of vinification technology through gas chromatographic data on enantiomeric purity of free amino acids

H. J. Chaves das Neves, J. P. Noronha

Journal:

Analytical and Bioanalytical Chemistry

Year:

1995

Language:

english

File:

PDF, 444 KB

english, 1995

36

Amino acid profiling using HRGC-FTIR oftert.-Butyldimethylsilyl derivatives

H. J. Chaves das Neves, A. M. P. Vasconcelos

Journal:

Chromatographia

Year:

1989

Language:

english

File:

PDF, 357 KB

english, 1989

37

Identification of a spathe regreening factor in Zantedeschia aethiopica

Higuinaldo J. Chaves das Neves, Maria Salomé S. Pais

Journal:

Biochemical and Biophysical Research Communications

Year:

1980

Language:

english

File:

PDF, 344 KB

english, 1980

38

Characterization of elementary wines of Vitis vinifera varieties by pattern recognition of free amino acid profiles

Vasconcelos, Ana Maria P., Chaves das Neves, Higuinaldo J.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1989

Language:

english

File:

PDF, 865 KB

english, 1989

39

Complementary Use of Hyphenated Purge-and-Trap Gas Chromatography Techniques and Sensory Analysis in the Aroma Profiling of Strawberries ( Fragaria ananassa )

Gomes da Silva, Marco D. R., Chaves das Neves, Higuinaldo J.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1999

Language:

english

File:

PDF, 99 KB

english, 1999

40

ChemInform Abstract: S-ACYL S-ACYLOXYSULFONIUM IONS- A NEW PUMMERER-TYPE REARRANGEMENT-FRAGMENTATION REACTION

CHAVES DAS NEVES, H. J., MACHETE, M. F.

Journal:

Chemischer Informationsdienst

Year:

1977

File:

PDF, 124 KB

1977

41

ChemInform Abstract: OXIDATION OF THIOL ESTERS. SOME ASPECTS OF THE CHEMISTRY OF S-ACYLTHIOL S-OXIDES AND RELATED COMPOUNDS

CHAVES DAS NEVES, H. J., DA SILVEIRA GODINHO, L.

Journal:

Chemischer Informationsdienst

Year:

1980

File:

PDF, 214 KB

1980

42

Prevalência de obesidade e fatores potencialmente causais em adultos em região do sul do Brasil

Vedana, Ediolane Hilbert Brati, Peres, Marco Aurelio, Neves, Janaina das, Rocha, Gino Chaves da, Longo, Giana Zabarto

Journal:

Arquivos Brasileiros de Endocrinologia & Metabologia

Year:

2008

File:

PDF, 139 KB

2008

43

Prevalência de obesidade e fatores potencialmente causais em adultos em região do sul do Brasil

Vedana, Ediolane Hilbert Brati, Peres, Marco Aurelio, Neves, Janaina das, Rocha, Gino Chaves da, Longo, Giana Zabarto

Journal:

Arquivos Brasileiros de Endocrinologia & Metabologia

Year:

2008

File:

PDF, 139 KB

2008

44

Influence of light, temperature and humidity on substrate and osmoconditioning during the germination of Mimosa bimucronata (DC) O. Kuntze.

Melo, Luan Danilo Ferreira de Andrade, Junior, João Luciano de Andrade Melo, Neto, João Correia de Araújo, Ferreira, Vilma Marques, Neves, Maria Inajal Rodrigues da Silva das, Chaves, Lívia Francyne G

Journal:

Australian Journal of Crop Science

Year:

2018

Language:

english

File:

PDF, 1.04 MB

english, 2018

45

Epidemiological, clinical and evolutionary aspects of tuberculosis among elderly patients of a university hospital in Belém, Pará

Chaves, Emanuele Cordeiro, Carneiro, Irna Carla do Rosário Souza, Santos, Maria Izabel Penha de Oliveira, Sarges, Nathália de Araújo, Neves, Eula Oliveira Santos das

Journal:

Revista Brasileira de Geriatria e Gerontologia

Year:

2017

Language:

english

File:

PDF, 196 KB

english, 2017

46

Seleção precoce de clones de eucalipto para ambientes com disponibilidade diferenciada de água no solo: relações hídricas de plantas em tubetes

Chaves, José Humberto, Reis, Geraldo Gonçalves dos, Reis, Maria das Graças Ferreira, Neves, Júlio César Lima, Pezzopane, José Eduardo Macedo, Polli, Henrique Quero

Journal:

Revista Árvore

Year:

2004

File:

PDF, 706 KB

2004

47

Índice de carência social e hanseníase no estado do Pará em 2013: análise espacial

Chaves, Emanuele Cordeiro, Costa, Samara Viana, Flores, Rute Leila dos Reis, Neves, Eula Oliveira Santos das, Chaves, Emanuele Cordeiro, Costa, Samara Viana, Flores, Rute Leila dos Reis, Neves, Eula O

Journal:

Epidemiologia e Serviços de Saúde

Year:

2017

Language:

english

File:

PDF, 3.05 MB

english, 2017

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