Sorption capacities of graphitized carbon black in determination of chlorinate pesticides traces in water

Bacaloni, Alessandro; Goretti, G.; Lagana, A.; Petronio, B.M.; Rotatori, Mauro

doi:10.1021/ac50063a011

Cited by 75 publications

(29 citation statements)

References 22 publications

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“…Solid‐phase extraction (SPE) is a highly effective method for removing trace organics from aqueous solutions or biological fluids 1–11. In SPE, analytes are extracted by passing sample solutions through a sorbent material.…”

mentioning

confidence: 99%

Rapid determination of trace nitrophenolic organics in water by combining solid-phase extraction with surface-assisted laser desorption/ionization time-of-flight mass spectrometry

Chen¹,

Shiea²,

Sunner³

2000

Rapid Commun. Mass Spectrom.

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A rapid technique for the screening of trace compounds in water by combining solid-phase extraction (SPE) with activated carbon surface-assisted laser desorption/ionization (SALDI) time-of-flight mass spectrometry is demonstrated. Activated carbon is used both as the sorbent in SPE and as the solid in the SALDI matrix system. This eliminates the need for an SPE elution process. After the analytes have been adsorbed on the surfaces of the activated carbon during SPE extraction, the activated carbon is directly mixed with the SALDI liquid and mass spectrometric analysis is performed. Trace phenolic compounds in water were used to demonstrate the effectiveness of the method. The detection limit for these compounds is in the ppb to ppt range.

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mentioning

confidence: 99%

Rapid determination of trace nitrophenolic organics in water by combining solid-phase extraction with surface-assisted laser desorption/ionization time-of-flight mass spectrometry

Chen¹,

Shiea²,

Sunner³

2000

Rapid Commun. Mass Spectrom.

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“…Two hundred milligrams of GCB was packed in a glass column (200 X 5 mm i.d. ), as recommended by Bacaloni et al (8).…”

Section: Methodsmentioning

confidence: 97%

Evaluation of an Integrated Adsorption Method for the Isolation and Concentration of Trace Organic Substances from Water

Giabbai

Chian

Reuter

et al. 1986

Advances in Chemistry

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A scheme for the isolation and concentration of dissolved trace organic substances from water for toxicological and chemical characterization was evaluated. The principle behind this scheme consists of the separation of organic solutes into fractions by adsorption onto different adsorbents (i.e., XAD-8 resin, AG MP-50 cation-exchange resin, and Carbopack Β graphitized car bon black) under varying pH conditions. Test solutions contain ing 22 model organic substances along with inorganic salts were used to monitor process performance. High-resolution gas chromatography and high-performance liquid chromatography were employed for the quantitation of each model compound. The isolation-fractionation scheme proved to be effective for 16 out of 22 model compounds; average recoveries varied between 30% and 90%.THE HIGH COMPLEXITY AND DILUTED FORM in which organic com pounds occur in natural and drinking waters require that isolation, concentration, and fractionation procedures be employed to achieve a suitable sample for chemical and toxicological characterization. The use of these methods in analytical schemes has thus far allowed the iden tification of several hundred trace organic substances in drinking water

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“…They have a low capacity for low molecular weight analytes but have been used successfully for the isolation of heavier nonpolar analytes that might be difficult to recover from more active forms of carbon [169,170]. Graphitized carbon blacks have low surface areas, usually less than 100 m 2 /g and typically 5-3 0 m 2 /g.…”

Section: Granular Activated Carbonmentioning

confidence: 99%

Sample Preparation for Chromatographic Analysis

Poole

1991

Chromatography Today

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Sorption capacities of graphitized carbon black in determination of chlorinate pesticides traces in water

Cited by 75 publications

References 22 publications

Rapid determination of trace nitrophenolic organics in water by combining solid-phase extraction with surface-assisted laser desorption/ionization time-of-flight mass spectrometry

Rapid determination of trace nitrophenolic organics in water by combining solid-phase extraction with surface-assisted laser desorption/ionization time-of-flight mass spectrometry

Evaluation of an Integrated Adsorption Method for the Isolation and Concentration of Trace Organic Substances from Water

Sample Preparation for Chromatographic Analysis

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