Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines

Santalad, Apichai; Burakham, Rodjana; Srijaranai, Supalax; Grudpan, Kate

doi:10.1016/j.microc.2007.03.006

Cited by 17 publications

(10 citation statements)

References 40 publications

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“…On the other hand, the majority of published on‐capillary complexation methods are based on the complexation reactions known from classical qualitative analytical chemistry, especially those for the determination of metal ions. As an example, the method for determining metals (Co(II), Cu(II), Ni(II) and Fe(II)) in wine based on on‐capillary complexation using 2‐(5‐nitro‐2‐pyridylazo)‐5‐( N ‐propyl‐ N ‐sulfopropylamino)phenol (nitro‐PAPS) as the complexation agent and field‐amplified sample injection coupled to CZE is shown in Fig. .…”

Section: Application Of On‐column Derivatisationmentioning

confidence: 99%

On‐capillary derivatisation as an approach to enhancing sensitivity in capillary electrophoresis

Glatz

2014

Electrophoresis

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Separation technologies play an important role in revealing biological processes at various omic levels, in pharmacological and clinical research. In this context, CE is a strong candidate for analyses of samples with rapidly increasing complexity. Even though CE is well known for its many advantages in this regard, the sensitivity of CE analyses is insufficient for many applications. Accordingly, there are generally three main options for enhancing the sensitivity of CE analyses - using special detection techniques, using sample pre-concentration and derivatisation. Derivatisation is often the method of choice for many laboratories, since it is simple and provides several advantages such as small sample volume demand and the possibility of automation. Although it can be performed in different ways depending on where the reaction takes place, this article reviews one of the simplest and at the same time most useful approaches on-capillary derivatisation. Even if in many cases the use of on-capillary derivatisation alone is enough to improve the detection sensitivity, on other occasions it needs to be employed in combination with the other above-mentioned strategies. After a simple discussion of derivatisation in general, special attention is focused on the on-capillary approach and methodologies available for on-capillary reactant mixing. Its applications in various fields are also described.

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Section: Application Of On‐column Derivatisationmentioning

confidence: 99%

On‐capillary derivatisation as an approach to enhancing sensitivity in capillary electrophoresis

Glatz

2014

Electrophoresis

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“…FESI is a powerful sample preconcentration technique and more than 1000‐fold increase in sensitivity is possible. FESI has been successfully applied to further improve the detection sensitivity for in‐capillary reaction 49–52.…”

Section: In‐capillary Assaymentioning

confidence: 99%

“…In general, on‐line sample preconcentrations are designed to compress the analyte band within the capillary, thereby increasing the volume of the sample that can be injected without loss of CE efficiency 138. Some on‐line sample preconcentration techniques have been applied for in‐capillary derivatization, such as normal sample stacking 139, FESI 140, large‐volume stacking 141, pH junction 142, transient isotachophoresis 143 and stacking based on viscosity 144.…”

Section: On‐line Derivatization and Chemical Reactionmentioning

confidence: 99%

Recent developments and applications of EMMA in enzymatic and derivatization reactions

2011

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This review provides systematic coverage of examples in the field of in-capillary electrophorecially mediated microanalysis (EMMA). The recent developments and applications in the time period up to mid 2011 have been described, as well as relevant older papers. The basic principles and modes of in-capillary assays have been demonstrated. An overview is also given of the various injection, separation and detection modes implemented in combination with EMMA. The review is presented in two parts mainly dealing with (i) enzymatic and (ii) derivatization or chemical reactions. Finally, the future trends of CE in performing and monitoring reactions have been drawn.

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“…Various analytical methods have been used for the determination of trace metals in wine such as, e.g., near infrared spectrometry [21], electrophoresis chromatography [22], ionic chromatography [23,24] or cathodic stripping voltametry [23]. Pyrzyńska [25] in 2004 and Aceto et al [26] in 2002 have reviewed the different methods used for the determination of selected metals in different types of wine and their concentration ranges.…”

Section: Introductionmentioning

confidence: 99%

Atomic spectrometry methods for wine analysis: A critical evaluation and discussion of recent applications

Grindlay

Mora

Gras

et al. 2011

Analytica Chimica Acta

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Field-amplified sample injection and in-capillary derivatization for capillary electrophoretic analysis of metal ions in local wines

Cited by 17 publications

References 40 publications

On‐capillary derivatisation as an approach to enhancing sensitivity in capillary electrophoresis

On‐capillary derivatisation as an approach to enhancing sensitivity in capillary electrophoresis

Recent developments and applications of EMMA in enzymatic and derivatization reactions

Atomic spectrometry methods for wine analysis: A critical evaluation and discussion of recent applications

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