Simultaneous capillary GC-MS determination of triazines and amides in water

Hu, Renwei; Berthion, J. M.; Bodereau, I.; Fournier, J.

doi:10.1007/bf02292948

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…Liquid-liquid extraction (LLE) [7,8] or solid-phase extraction (SPE) [6, 9 12] are the most common preconcentration techniques; use of one of these is followed by use of gas chromatography (GC) [5] or high-performance liquid chromatography (HPLC) [13] to determine the antifouling compounds. SPE has been widely used, because of its simplicity and robustness compared with liquid-liquid extraction [14,15]. More recently, solid-phase microextraction (SPME) coupled with GC has been used to determine some of these contaminants in water samples [16,17].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the performance of analytical methods based on solid-phase extraction and on solid-phase microextraction for the determination of antifouling booster biocides in natural waters

et al. 2002

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SummaryAnalytical procedures based on solid-phase extraction (SPE) and solid-phase microextraction (SPME) have been compared for the determination of four organic booster biocides used in marine antifouhng paints (irgarol 1051, dichlofluanid, chlorothalonil, and sea-nine 211). Both techniques were coupled with gas chromatography with electron-capture, flame-thermionic, and mass-spectrometric detection. Recovery studies in spiked samples of water of different origin (distilled, lake, river, and sea water) demonstrated that Irgaro11051, sea nine 211, and chlorothalonil were extracted efficiently (recovery > 75%) with Cls and SDB disks whereas extraction of dichlofluanid was moderate or insufficient (< 65%). With AC disks careful extraction procedures are needed for efficient extraction of dichlofluanid, sea-nine 211, and irgaro11051; chlorothalonil was difficult to desorb (recovery < 60%). In SPME both fibers could be used to extract all the biocides with relatively high recoveries (65 -118%). SPME is a more efficient multiresidue technique for the tested biocides than SPE, which requires the use of different adsorbents for determination of biocides. Very low limits of detection (0.4-20 ng L 1) can be achieved with both SPE and SPME under optimized conditions, and their potential for trace-level screening of natural waters for antifouhng biocides is demonstrated. The methods were applied to the analysis of the antifouhng biocides in samples of sea water from Greek marinas.

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Section: Introductionmentioning

confidence: 99%

Comparison of the performance of analytical methods based on solid-phase extraction and on solid-phase microextraction for the determination of antifouling booster biocides in natural waters

et al. 2002

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“…La chromatographie capillaire avec détecteur de masse permet d'identifier et de mesurer les concentrations de constituants d'un mélange dont les pics chromatographiques sont mal résolus, à condition que l'on puisse identifier dans leurs spectres de masse les ions spécifiques [15]. En vue de mesurer des traces nous avons aussi cherché à optimiser le rapport signal/bruit (réponses 3, 4, 5...) des pics chromatographiques reconstitués à partir de l'addition des ions spécifiques choisis pour la quantification de chaque produit.…”

Section: Plan D'expériencesunclassified

Application of experimental design to the determination of pesticides in water by GC-MS (in French).

Hourch¹,

Taglioni²,

Fournier³

1998

Analusis

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L es décrets 89-3 du 3/1/89, 90-330 du 10/4/90, 91-257 du 7/3/91 et 95-363 du 5/4/95 du Ministère de la Santé Publique et de l'Assurance Maladie fixent les limites de concentrations admissibles des micropolluants organiques dans les eaux destinées à la consommation humaine. Les techniques chromatographiques sont couramment utilisées dans les laboratoires de contrôles agréés pour détecter la présence des traces de pesticides et des produits apparentés. Mais les exigences croissantes qu'impose la surveillance de notre environnement nécessitent en permanence la maîtrise et le développement de nouvelles procédures d'analyses.Pour trouver les conditions optimales de séparation chromatographique et de mesure en vue de développer une méthode simultanée d'analyse de traces de pesticides, beaucoup d'expériences sont généralement nécessaires. En effet, la grande diversité des pesticides et des produits apparentés recherchés dans l'eau, notamment en ce qui concerne la polarité de ces molécules, rend délicate la mise au point d'une méthode d'analyse simultanée.Le plus souvent l'analyste détermine grâce à son expé-rience les paramètres qu'il faut étudier pour mettre au point une méthode de dosage, puis il fait varier pas à pas et de manière indépendante les différents facteurs et fixe ainsi les conditions opératoires. Cette technique ne permet pas de prendre en compte les interactions entre les facteurs, ce qui constitue une source importante d'imprécision. L'utilisation d'un plan d'expériences permet d'adopter une stratégie plus économique et plus directe. Le nombre des essais à effectuer est déterminé de manière rationnelle ce qui évite les redondances d'informations et facilite la gestion du temps et la maîtrise des coûts. En outre la mise en oeuvre d'une procédure d'optimisation permet l'étude des interactions entre les différents facteurs, il peut arriver qu'un facteur qui n'a Experimental Design methodology allows the modelling and optimisation of the simultaneous capillary GC-MS determination in water of 23 pesticides, belonging to various chemical families, in the selected-ion monitoring mode, a using a 2 3 centred composite design.

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“…Several multiresidual analytical methods for pesticide residues in water have been reported in the literature. The majority of these address small numbers of pesticides using different instrumental techniques, including solid‐phase microextraction with GC‐NPD of determination for 12 organophosphate pesticides (Beltran et al ., 1998) GC‐with flame photometric detection for five pesticides (Su and Huang, 1999), solid‐phase (C 18 ) extraction with GC‐NPD for 12 contemporary pesticides (Belden et al ., 2000), HPLC with diode array detection (Jimenez et al ., 1997), programmable temperature vaporizer method using narrow‐bore column and GC‐MS for 17 pesticides (Hada et al ., 2000), liquid–liquid extraction and GC‐MS analysis for 14 organochlorine and organophosphate pesticides (Hu et al ., 1996; Tahboub et al ., 2005), etc. The United States Environmental Protection Agency (EPA) hasrecommended a series of analytical methods for the detection of pesticides in municipal drinking water using GC coupled with a nitrogen‐phosphorus detector (NPD) or mass detector (MS) (EPA Methods 500 Series; http://www.accustandard.com/asi/epa_downloads.php3#500_series).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous multiresidue determination of 48 pesticides in Yeongsan and Sumjin River water using GC‐NPD and confirmation via GC‐MS

Park¹,

Mamun²,

El‐Aty³

et al. 2010

Biomedical Chromatography

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In a continuation of our earlier work, a multiresidual analytical method using 48 frequently used neutral pesticides in a water matrix was developed and validated in this study. The samples were extracted with dichloromethane and the pesticides were analyzed via GC-NPD followed by confirmation with GC-MS. Good linearity was detected over a concentration range of 0.01-1.0 microg/mL with correlation coefficients (r(2) ) in excess of 0.982. The recoveries were measured between 70.7 and 111.4% for the majority of the targeted pesticides with relative standard deviations (RSDs) of less than 20%. The LODs and LOQs were in ranges of 0.1-2 and 0.33-6.6 microg/L, respectively. A total of 66 water samples were collected from different locations in Yeongsan and the Sumjin River, Republic of Korea, and were analyzed in accordance with the developed method. None of the water samples were determined to contain any of the targeted pesticides. The method has been shown to be simpler, faster, and more cost-effective than the method established by the Environmental Protection Agency (EPA).

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Simultaneous capillary GC-MS determination of triazines and amides in water

Cited by 8 publications

References 7 publications

Comparison of the performance of analytical methods based on solid-phase extraction and on solid-phase microextraction for the determination of antifouling booster biocides in natural waters

Comparison of the performance of analytical methods based on solid-phase extraction and on solid-phase microextraction for the determination of antifouling booster biocides in natural waters

Application of experimental design to the determination of pesticides in water by GC-MS (in French).

Simultaneous multiresidue determination of 48 pesticides in Yeongsan and Sumjin River water using GC‐NPD and confirmation via GC‐MS

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