Fast gas chromatography and its use in trace analysis

Matisová, Eva; Dömötörová, Milena

doi:10.1016/s0021-9673(03)00310-8

Cited by 171 publications

(75 citation statements)

References 71 publications

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“…columns are replaced by narrow bore columns ( [1], and references reported therein). These innnovations have strongly contributed to promoting the use of high-speed GCs for routine analysis [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Direct resistively heated column gas chromatography (Ultrafast module-GC) for high-speed analysis of essential oils of differing complexities

Bicchi

Brunelli

Cordero

et al. 2004

Journal of Chromatography A

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This study applies Ultrafast module-GC (UFM-GC) with direct resistively heated columns to routine analysis of a group of essential oils of differing complexities (chamomile, peppermint, rosemary and sage). Essential oils were analysed by conventional GC with conventional inner diameter (i.d.) columns (0.25 mm) of different lengths (5 and 25 m long) and by Fast GC and Ultrafast module-GC with narrow bore columns (0.1 mm i.d., 5 m long). Column performance were evaluated and compared through their Grob test, separation number and peak capacity. Ultrafast module-GC was successful in the qualitative and quantitative analysis of essential oils of different compositions with analysis times between 40 s and 2 min versus 20-60 min required by conventional GC. Critical pairs or groups of components were separated by carefully tuning selectivity of the stationary phase to compensate for loss of efficiency due to the use of short columns and high temperature rates. The Ultrafast module-GC results of peppermint e.o. analyses were also validated and compared to those obtained by conventional GC; by measuring precision over time (i.e. repeatability and intermediate precision) and accuracy. Ultrafast module-GC showed a good separation reproducibility affording reliable component identification through the relative retention times and quantitative determination through normalised peak areas. Accuracy data also showed that Ultrafast module-GC and conventional GC normalised areas and areas percentage were perfectly comparable.

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Section: Introductionmentioning

confidence: 99%

Direct resistively heated column gas chromatography (Ultrafast module-GC) for high-speed analysis of essential oils of differing complexities

Bicchi

Brunelli

Cordero

et al. 2004

Journal of Chromatography A

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“…The summarisation of both approaches to the classification of faster GC is in Table 1. Nowadays fast GC can be performed on commercial gas chromatographs, which are standard equipped with high-speed injection systems, electronic gas pressure control, rapid oven heating/cooling and fast detection (Korytár et al, 2002, Matisová & Dömötörová, 2003. Fast GC technique has been established to real sample analysis very slowly.…”

Section: Classification Of Faster Gcmentioning

confidence: 99%

“…Numerous options exist for pushing the speed of capillary gas chromatography as it was summarized in a few reviews (Matisová & Dömötörová, 2003;Dömötörová & Matisová, 2008;. The most often approaches use i) narrow-bore columns, ii) fast temperature programming, iii) low-pressure gas chromatography (LP-GC), or iv) comprehensive GCxGC.…”

Section: Strategies Of Fast Gcmentioning

confidence: 99%

Fast Gas Chromatography and Its Use in Pesticide Residues Analysis

Hrouzková¹,

Matisová²

2011

Pesticides - Strategies for Pesticides Analysis

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“…Lower values of MRLs are set for baby food -EC specified the MRL of 0.010 mg/kg (Commission Directive 2003/13/EC 2003. Scientifically valid analysis methods at low concentration levels, currently still often very close to the limits of quantification (LOQs), are essential for surveillance/ compliance programs established with the terminal goal to minimise the hazards and the health risks and to achieve more sustainable application of pesticides (Matisová, 2003;Kirchner, 2004;. The most suitable for the determination of pesticide residues content in food samples are chromatographic methods with various sample preparation methods.…”

Section: Introductionmentioning

confidence: 99%

MSPD as sample preparation method for determination of selected pesticide residues in apples

Purdešová¹,

Dömötörová

2017

Acta Chimica Slovaca

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A method for extraction and fast gas chromatographic (GC) determination of twenty pesticide residues of different volatility and polarity at ultratrace concentration level in apples is presented. Apples as representatives of non-fatty food were chosen as a matrix; they are also a common raw material for baby food production. Under fast GC conditions employing a mass spectrometric detector (MSD), several parameters of the MSPD procedure were optimised. Samples were homogenised with sorbent Florisil, pesticides were eluted with the optimised volume of etylacetate. After solvent evaporation to dryness, reconstitution of the rest to toluene follow and the final extract was injected. Recoveries obtained at three selected concentration levels were determined. The optimised procedure led to recoveries ≥ 90 % for the majority of the studied pesticides and the limits of quantification (LOQs) < 5 µg.kg -1 . Repeatability of gas chromatography-mass spectrometry (GC-MS) measurements of the matrix matched standards, expressed as the relative standard deviation (RSD [ %]), was in most cases acceptable for ultratrace concentration levels of pesticide residues.

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Fast gas chromatography and its use in trace analysis

Cited by 171 publications

References 71 publications

Direct resistively heated column gas chromatography (Ultrafast module-GC) for high-speed analysis of essential oils of differing complexities

Direct resistively heated column gas chromatography (Ultrafast module-GC) for high-speed analysis of essential oils of differing complexities

Fast Gas Chromatography and Its Use in Pesticide Residues Analysis

MSPD as sample preparation method for determination of selected pesticide residues in apples

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