Influence of Carbon Content and End‐Capping of ODS Stationary Phases on the Separation Behavior of Triacylglycerols in LC and SFC

Sakaki, Keiji; Sudo, Yoshihisa; Kudo, Shinichi

doi:10.1081/jlc-120027612

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…A análise elementar é o método mais comum para a determinação da porcentagem de carbono de uma fase estacionária [4][5][6] . Neste método, uma pequena porção da fase é submetida à combustão em presença de oxigênio, resultando em CO 2 e H 2 O. Estes produtos da combustão são então quantificados e o material orgânico, presente na fase estacionária, é expresso em termos de carbono e hidrogênio.…”

Section: Introductionunclassified

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria

Faria¹,

Marcos²,

Vigna³

2008

Quím. Nova

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This paper presents a simple and practical thermogravimetric method for determining the layer thickness of immobilized polymer stationary phases used in reversed-phase high-performance liquid chromatography. In this method, the weight loss of different polysiloxanes immobilized onto chromatographic supports, determined over the temperature range 150-650 ºC, demonstrated excellent agreement with the sum of carbon and hydrogen content obtained by elemental analysis. The results presented here suggest that the thermogravimetric procedure is an accurate and precise method to determine the polymeric material content on polymer-coated stationary phases.

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Section: Introductionunclassified

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria

Faria¹,

Marcos²,

Vigna³

2008

Quím. Nova

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Evaluation and Measurement of Asymmetric Factor of a Basic Compound on C₁₈ Bonded Silica in Supercritical Fluid Chromatography with Orthogonal Array Design

Chou

Chen

Wei

2013

J Chinese Chemical Soc

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A L18 (21 × 37) OAD was employed to investigate the effects of SFC parameters on the asymmetric factor of a basic compound on C18 columns. The effect of active sites of silanol group on SFC could be much more significant than that of HPLC due to the low viscosity and high diffusivity of the supercritical fluid. Three Waters C18 columns with different silanol activities were employed to examine the effect of the SFC parameters on the asymmetric factor of 5‐(α‐phenylethyl)‐semioxamazide. The OAD data were evaluated by ANOVA to determine significant parameters of SFC on the asymmetric factor. The results of ANOVA indicate that the silanol activity is the most dominant factor affecting the asymmetric factor. The influence of other parameters on the asymmetric factor follows the order of: modifier type > modifier concentration > additive type > pressure > temperature ∼ additive concentration > injected sample concentration.

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Stationary phases for packed-column supercritical fluid chromatography

Poole

2012

Journal of Chromatography A

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Influence of Carbon Content and End‐Capping of ODS Stationary Phases on the Separation Behavior of Triacylglycerols in LC and SFC

Cited by 4 publications

References 34 publications

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria

Evaluation and Measurement of Asymmetric Factor of a Basic Compound on C₁₈ Bonded Silica in Supercritical Fluid Chromatography with Orthogonal Array Design

Stationary phases for packed-column supercritical fluid chromatography

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Influence of Carbon Content and End‐Capping of ODS Stationary Phases on the Separation Behavior of Triacylglycerols in LC and SFC

Cited by 4 publications

References 34 publications

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria

Evaluation and Measurement of Asymmetric Factor of a Basic Compound on C18 Bonded Silica in Supercritical Fluid Chromatography with Orthogonal Array Design

Stationary phases for packed-column supercritical fluid chromatography

Contact Info

Product

Resources

About

Evaluation and Measurement of Asymmetric Factor of a Basic Compound on C₁₈ Bonded Silica in Supercritical Fluid Chromatography with Orthogonal Array Design