Simple water analysis of golf link pesticides by means of batch-wise adsorption and supercritical fluid extraction

Chikushi, Hiroaki; Hirota, Kazutoshi; Yoshida, Natsuko; Edamura, Takuya; Toda, Kei

doi:10.1016/j.talanta.2009.07.061

Cited by 12 publications

(5 citation statements)

References 24 publications

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“…The log Kd of pencycuron is considerably lower than that estimated from log Kowwin, implying that some of the pencycuron was ionized, or that the actual log Kow is much smaller [28,29].…”

Section: Distribution Coefficients For Pahs Estrogens and Pesticidesmentioning

confidence: 86%

Evaluation of an Ion-Associate Phase Formed In Situ from the Aqueous Phase by Adding Benzethonium Chloride and Sodium Ethylbenzenesulfonate for Microextraction

et al. 2023

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The concentration region at which the solvent is formed during in situ solvent formation microextraction is determined by varying the concentrations of the two components required to form a solvent. In particular, a solvent is formed in situ during ion-associate phase (IAP) microextraction by mixing an aqueous solution with an organic cation and an organic anion. In this study, benzethonium chloride (BenCl) and sodium ethylbenzenesulfonate (NaEBS) were employed as the organic cation and anion sources of model IAPs to thoroughly investigate the in situ solvent formation. Additionally, the formation of the IAPs and the solvent via centrifugation of the formed ion associates was examined. We demonstrated that ion associates are formed when the product of [EBS] and [Ben] is greater than the solubility product and [EBS] is greater than [Ben]. The highest extraction of polycyclic aromatic hydrocarbons (PAHs) was achieved with an amount of NaEBS 40 times greater than that of BenCl. A higher hydrophobicity in the IAP extraction of PAHs, estrogens, and pesticides facilitated extraction into the IAP.

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“…The log Kd of pencycuron is considerably lower than that estimated from log Kowwin, implying that some of the pencycuron was ionized, or that the actual log Kow is much smaller [28,29].…”

Section: Distribution Coefficients For Pahs Estrogens and Pesticidesmentioning

confidence: 86%

Evaluation of an Ion-Associate Phase Formed In Situ from the Aqueous Phase by Adding Benzethonium Chloride and Sodium Ethylbenzenesulfonate for Microextraction

et al. 2023

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“…The sediments were taken from the column and dried in a descicator overnight to be ready for SFE. The eluted waters were treated with XAD resin as described bofore (Chikushi et al, 2009). Namely 2 g of washed XAD was added to the water and stirred for 15 min.…”

Section: Adsorption Examination Of the Sedimentsmentioning

confidence: 99%

“…The tea bag containing XAD resins can be placed in stream of river water or waste water for a day or a week and taken back to the laboratory to determine. This method is expected to be useful for simple water screenings after supplying the pesticides to golf links and agricultural fields (Chikushi et al, 2009). …”

Section: Water Analysis With Sfementioning

confidence: 99%

“…The method was very simple but water existing in the supercritical fluid behaves as catalyst to decompose the organic compounds (Janda et al, 1996). Therefore we investigated another SFE method; appropriate adsorbent was added into the sample water to collect the analyte targets and then the pesticides were extracted from the adsorbent by SFE (Chikushi et al, 2009). In this method, use of organic solvent was dramatically minimized and unstable pesticides could be measured even with SFE.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption Properties of Sediments for Pesticides: Investigation with Supercritical Fluid Extraction and Gas Chromatograph Mass Spectrometry

Chikushi¹,

Yoshida²,

Toda³

2011

Pesticides - Formulations, Effects, Fate

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“…SFE uses a fluid in the supercritical state; the fluid has high permeability, like gaseous species, and good solvents for pesticides, like organic solvents, have been used to extract pesticides from agricultural products 1,2 and dioxins from soils. 3 We previously investigated SFE of pesticides from agricultural products, soils, 4 and wastewater, 5 and of polychlorinated biphenyls from solid wastes. 6 Pesticides, in various kinds of agricultural products that are strongly adsorbed to sediment matrixes, were successfully extracted using the described SFE method.…”

Section: Introductionmentioning

confidence: 99%

Determination of Isotianil in Brown Rice and Soil Using Supercritical Fluid Extraction and Gas Chromatography/Mass Spectrometry

Yoshida¹,

Itou²,

Yamamoto³

et al. 2013

ANAL. SCI.

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Isotianil (3,4-dichloro-2'-cyano-1,2-thiazole-5-carboxanilide) is a new plant-activating pesticide. Usage of the pesticide was approved for rice fields in 2010 and its production increased 400 times (2 × 10(4) kg) in the next year. In this work, a method for determining isotianil in brown rice and rice field soil was investigated for the first time. Isotianil was extracted by supercritical fluid extraction and measured by gas chromatography/mass spectrometry. Isotianil was successfully analyzed with good recoveries (95.1-99.3%) even from soil samples with strong adsorption of pesticides.

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Simple water analysis of golf link pesticides by means of batch-wise adsorption and supercritical fluid extraction

Cited by 12 publications

References 24 publications

Evaluation of an Ion-Associate Phase Formed In Situ from the Aqueous Phase by Adding Benzethonium Chloride and Sodium Ethylbenzenesulfonate for Microextraction

Evaluation of an Ion-Associate Phase Formed In Situ from the Aqueous Phase by Adding Benzethonium Chloride and Sodium Ethylbenzenesulfonate for Microextraction

Adsorption Properties of Sediments for Pesticides: Investigation with Supercritical Fluid Extraction and Gas Chromatograph Mass Spectrometry

Determination of Isotianil in Brown Rice and Soil Using Supercritical Fluid Extraction and Gas Chromatography/Mass Spectrometry

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