Determination of phenols by solid-phase microextraction

Barták, Petr; Čáp, Lubomír

doi:10.1016/s0021-9673(96)01090-4

Cited by 119 publications

(31 citation statements)

References 15 publications

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“…Following Figure 1 and Figure 2, 60 minutes was chosen as a reasonable extraction time in accordance with previous experience gained with HS-SPME of semi-volatile compounds [44]. Relative standard deviations of the peak areas of selected compounds corresponding to the experiments repeated four times under chosen conditions are given in Table 1.…”

Section: Resultsmentioning

confidence: 99%

SPME – A valuable tool for investigation of flower scent

Barták¹,

Bednář²,

Čáp³

et al. 2003

J of Separation Science

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A novel Headspace Solid Phase Microextraction (HS-SPME) protocol is proposed for the analysis of floral scent. Volatile compounds emitted from the flower are collected on a Carboxen/PDMS fiber for 1 hour, transferred to the GC, and analyzed by GC/ MS. The method completely eliminates the use of organic solvents, does not require special instrumentation, and may readily be performed in the field without access to mains electricity and other energy supplies. The method is robust, sensitive, and reduces the sampling stress on the investigated plant. Since enzymatic reactions in living flowers may cause changes in the composition of emitted fragrance, dried rosemary (Rosmarinus officinalis L.) was used as a stable standard for the method development and optimization. In addition, grape wine was also suggested as homogeneous, bio-compatible, and relatively stable standard of pronounced and typical scent for the same purpose. The optimized method was used for the comparative investigation of the fragrances emitted by two different species -Lathyrus vernus (L.) and Orchis pallens (L.). Several monoterpenes (C10 compounds) were found as the main fragrance components of lathyrus, while sesquiterpenes (C15 compounds) were typical for the orchid.

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Section: Resultsmentioning

confidence: 99%

SPME – A valuable tool for investigation of flower scent

Barták¹,

Bednář²,

Čáp³

et al. 2003

J of Separation Science

Self Cite

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“…The successful application of SPME to detect pollutants in trace levels in the environment like phenols in drinking water (Bartak and Cap 1997;Rodriguez et al 2000), herbicides (Ramesh and Ravi 2001), air contaminants as a result of painting and due to a jet fuel fire (Hook et al 2002), and polycyclic aromatic hydrocarbons, which are carcinogenic (King et al 2003), have been reported. From Table 6, it can be noticed that most environmental applications deal with the analysis of benzene, toleune, ethyl benzene, and xylene (BTEX) compounds.…”

Section: Spme For Similar Applications and Their Potential For Food Amentioning

confidence: 99%

Solid-Phase Microextraction (SPME) Techniques for Quality Characterization of Food Products: A Review

Balasubramanian

Panigrahi

2010

Food Bioprocess Technol

179

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Solid-phase microextraction (SPME) is a relatively new sampling technique wherein sample extraction and pre-concentration could be achieved in a single step. The handling of an SPME device is simple, and the analysis of volatiles could be easy. However, the process becomes complex while analyzing sample matrices of heterogeneous nature. The complexity also increases depending upon the nature of compounds to be extracted. Careful selection and optimization of extraction parameters like fiber coating selection, extraction time, agitation, addition of salt, and extraction temperature have to be undertaken to improve the sensitivity and the reproducibility of this method. This paper reviews the principles associated with SPME technique from a general application viewpoint. Also, a comprehensive review of prior research related to characterization of food quality has been reported. SPME-related solutions for environmental applications have also been analyzed to be applied for new food-related applications.

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“…It took more time for 2,4-DCP to reach extraction equilibrium. However, it took more than 60 min for the commercial polymer-coated fiber to reach equilibrium for most of the phenols such as phenol, nitrophenol, and chlorophenol [30]. The porous structure of the PDMS/b-CD SPME fiber helped fast mass transfer during extraction, which led to a shorter equilibration time.…”

Section: Extraction Of Phenolsmentioning

confidence: 99%

Preparation and application of poly(dimethylsiloxane)/β‐cyclodextrin solid‐phase microextraction fibers

Zheng

et al. 2006

J of Separation Science

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A novel poly(dimethylsiloxane)/beta-cyclodextrin (PDMS/beta-CD) coating was prepared for solid-phase microextraction (SPME). The PDMS/beta-CD coating proved to have a porous structure, providing high surface areas and allowing for high extraction efficiency. The coating had a high thermal stability (340 degrees C) and a long lifetime due to its chemical binding to the fiber surface. Polar phenols and amines were used to evaluate the character of the coating fiber by headspace (HS) extraction and thermal desorption, followed by GC-FID analysis. Parameters that affected the extraction process were investigated; these include extraction time and temperature, desorption time, pH, and ionic strength of the solution. For phenols, the range of linearity of the method was 4-500 microg/L and the LOD was 1.3-2.1 microg/L. For amines, the range of linearity was 1-1000 microg/L and the LOD was 1.2-2.8 microg/L. The presence of beta-CD not only increases the thermal stability of the fiber coating, but also enhances its selectivity. Compared with commercially available SPME fibers, the new phases show better selectivity and sensitivity towards polar compounds.

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Determination of phenols by solid-phase microextraction

Cited by 119 publications

References 15 publications

SPME – A valuable tool for investigation of flower scent

SPME – A valuable tool for investigation of flower scent

Solid-Phase Microextraction (SPME) Techniques for Quality Characterization of Food Products: A Review

Preparation and application of poly(dimethylsiloxane)/β‐cyclodextrin solid‐phase microextraction fibers

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