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Publication : quimica nova

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Academic Journal

DEVELOPMENT AND VALIDATION OF A FAST AND SIMPLE HPLC-UV METHOD TO DETERMINE CAFFEINE IN GUARANA (Paullinia cupana) FOOD SUPPLEMENTS

Authors : Júlia Cecília Pereira Coura; Cláudia Aparecida de Oliveira e Silva; Edvane Santos Silva

Subjects: bioactive substances; food supplements; high performance liquid chromatography

Source: Química Nova, Vol 44, Iss 10, Pp 1353-1359 (2021)

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Academic Journal

Supercritical CO2 recovery of caffeine from green coffee oil: new experimental solubility data and modeling

Authors : Álvaro Bandeira Antunes de Azevedo; Theo Guenter Kieckbusch; Alexandre Keiji Tashima

Subjects: caffeine solubility; coffee oil; supercritical carbon dioxide

Source: Química Nova, Vol 31, Iss 6, Pp 1319-1323 (2008)

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Academic Journal

Cafeína: revisão sobre métodos de análise Analytical methods for caffeine

Authors : Carlos A. B. De Maria; Ricardo F. A. Moreira

Subjects: caffeine; methylxanthines; analytical methods

Source: Química Nova, Vol 30, Iss 1, Pp 99-105 (2007)

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Academic Journal

DEVELOPMENT AND VALIDATION OF A FAST AND SIMPLE HPLC-UV METHOD TO DETERMINE CAFFEINE IN GUARANA (Paullinia cupana) FOOD SUPPLEMENTS

Authors : Coura, Júlia Cecília Pereira; Silva, Cláudia Aparecida de Oliveira e; Silva, Edvane Santos

Subjects: bioactive substances; food supplements; high performance liquid chromatography

Source: Química Nova. January 2021 44(10)

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Supercritical CO2 recovery of caffeine from green coffee oil: new experimental solubility data and modeling

Authors : Azevedo, Álvaro Bandeira Antunes de; Kieckbusch, Theo Guenter; Tashima, Alexandre Keiji

Subjects: caffeine solubility; coffee oil; supercritical carbon dioxide

Source: Química Nova. January 2008 31(6)

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VALIDATION OF COMPUTATIONAL METHODS APPLIED IN MOLECULAR MODELING OF CAFFEINE WITH EPITHELIAL ANTICANCER ACTIVITY: THEORETICAL STUDY OF GEOMETRIC, THERMOCHEMICAL AND SPECTROMETRIC DATA

Authors : Costa, Josivan da Silva; Santos, Cleydson Breno Rodrigues dos; Costa, Karina da Silva Lopes

Subjects: validation; DFT/B3LYP; HF

Source: Química Nova. July 2018 41(7)

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O enfoque da metrologia química em análises toxicológicas na atividade turfística: validação de método analítico para determinação de cafeína em matrizes biológicas The chemical metrology approach for toxicological analysis in horseracing: validation of an analytical method for the determination of caffeine in biological matrices

Authors : India Maria H. de Lima; Maurício N. Frota

Subjects: metrological reliability; toxicological analysis; CG-MS

Source: Química Nova, Vol 30, Iss 8, Pp 1820-1829 (2007)

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AMPEROMETRIC DETERMINATION OF 8-CHLOROTHEOPHYLLINE, CAFFEINE, AND DIPHENHYDRAMINE IN A SINGLE RUN

Authors : Freitas, Jhonys Machado; Oliveira, Thiago da Costa; Munoz, Rodrigo Alejandro Abarza

Subjects: multielement analysis; batch injection analysis; portable method

Source: Química Nova. August 2017 40(7)

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Solvent effects on extraction of chlorogenic acids, caffeine and trigonelline in Coffea arabica

Authors : Ivanira Moreira; Ieda Spacino Scarminio; Guilherme Luiz Scheel

Subjects: mixture design; Chromatography; Stereochemistry

Source: Química Nova, Vol 37, Iss 1, Pp 39-43 (2014)Química Nova v.37 n.1 2014Química NovaSociedade Brasileira de Química (SBQ)instacron:SBQQuímica Nova, Volume: 37, Issue:

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HPLC analysis of nicotinic acid, trigonelline, chlorogenic acid and caffeine in roasted coffee

Authors : Maria Brígida dos Santos Scholz; Sandriel Trindade Alves; Rafael Carlos Eloy Dias

Subjects: Detection limit; Chromatography; Chemistry

Source: Química Nova, Vol 29, Iss 6, Pp 1164-1168 (2006)Química Nova, Volume: 29, Issue: 6, Pages: 1164-1168, Published: DEC 2006Química Nova v.29 n.6 2006Química NovaSociedade

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