Determination of 2,4-D in environmental samples by three phases directly suspended LPME combined with HPLC-UV

Amani, Vahid; Roshan, Saeed; Asgharinezhad, Ali Akbar; Najafi, Ezzatollah; Abedi, Hamid; Tavassoli, Najmeh; Zhad, Hamid Reza Lotfi Zadeh

doi:10.1039/c1ay05150d

Cited by 16 publications

(6 citation statements)

References 41 publications

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“…The vertical line on the plot shows statistically significant effects. The bars that extend beyond the line correspond to the effects that are statistically significant at the 95 % confidence level (StatGraphics Plus 5.1 for Windows, online manuals 2001; Ebrahimzadeh et al 2012;Adlnasab et al 2014;Amani et al 2011;Taghizadeh et al 2014). Furthermore, the positive or negative sign (corresponding to a colored or colorless response) can enhance or reduce the extraction efficiency, respectively, while increasing from the lowest to the highest level set for that specific factor.…”

Section: Sorption Stepmentioning

confidence: 99%

Determination of Hg(II) ions in sea food samples after extraction and preconcentration by novel Fe3O4@SiO2@polythiophene magnetic nanocomposite

Abolhasani

Khanmiri

Babazadeh

et al. 2015

Environ Monit Assess

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This work describes a novel Fe3O4@SiO2@polythiophene magnetic nanocomposite and its application in the preconcentration of Hg(II) ions. The parameters affecting the preconcentration procedure were opted by a Box-Behnken design through response surface methodology. Three factors (uptake time, magnetic nanosorbent amount, and pH of sample) were selected as the main factors affecting the sorption step, while four variables (type, volume and concentration of the eluent as well as the elution time) were selected as main factors in the optimization study of the elution step. Following the sorption and elution of Hg(II), it was quantified by cold vapor atomic absorption spectrometry. Under the optimum condition, the limit of detection was 0.02 ng mL(-1) and all the relative standard deviations were less than 9.2 %. The obtained sorption capacity of this new sorbent was 59 mg g(-1). Finally, this nanocomposite was successfully applied to the rapid extraction of trace quantities of Hg(II) ions in sea food samples and satisfactory results were obtained.

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Section: Sorption Stepmentioning

confidence: 99%

Determination of Hg(II) ions in sea food samples after extraction and preconcentration by novel Fe3O4@SiO2@polythiophene magnetic nanocomposite

Abolhasani

Khanmiri

Babazadeh

et al. 2015

Environ Monit Assess

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“…Thirty-four of these publications did not contain data relevant for human exposure assessment and are not considered further. The excluded studies were experimental, analytical, dissipation, or rainfall studies (Amani et al 2011;Anirudhan and Alexander 2014;Degenhardt et al 2011;Farenhorst, Andronak, and McQueen 2015;Hill et al 2002Hill et al , 2003Matthiessen et al 1992;Meru et al 1990;Nam et al 2014;Omidi et al 2014;Osborne et al 2015;Qin, Wei, and Li 2002;Quaghebeur et al 2004;Ryals, Genter, and Leidy 1998;Sandmann, Debeer, and Vandyk 1991;Siemering, Hayworth, and Greenfield 2008;Trevisan et al 1993;Waite et al 1995Waite et al , 2002bWatson 1977; Yamini and Saleh 2013), provided insufficient data (data only in graphical format) (Botta et al 2012;Cerejeira et al 2003; Davis and Lydy 2002;Gilliom 2007;Mitchell, Brodie, and White 2005;Muir and Grift 1987;Nagy and Painter 1985;Schultz and Harman 1974;Schultz and Whitney 1974;Spalding, Junk, and Richard 1980;Whitmore et al 1994), were a review (Hallberg 1989) or monitored a unique site not applicable to general population exposures (Buczynska and Szadkowska-Stanczyk 2005).…”

Section: 4-d and Watermentioning

confidence: 99%

Critical and systematic evaluation of data for estimating human exposures to 2,4-dichlorophenoxyacetic acid (2,4-D) – quality and generalizability

LaKind

Burns

Naiman³

et al. 2017

Journal of Toxicology and Environmental Health, Part B

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The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) has been commercially available since the 1940's. Despite decades of data on 2,4-D in food, air, soil, and water, as well as in humans, the quality the quality of these data has not been comprehensively evaluated. Using selected elements of the Biomonitoring, Environmental Epidemiology, and Short-lived Chemicals (BEES-C) instrument (temporal variability, avoidance of sample contamination, analyte stability, and urinary methods of matrix adjustment), the quality of 156 publications of environmental- and biomonitoring-based 2,4-D data was examined. Few publications documented steps were taken to avoid sample contamination. Similarly, most studies did not demonstrate the stability of the analyte from sample collection to analysis. Less than half of the biomonitoring publications reported both creatinine-adjusted and unadjusted urine concentrations. The scope and detail of data needed to assess temporal variability and sources of 2,4-D varied widely across the reviewed studies. Exposures to short-lived chemicals such as 2,4-D are impacted by numerous and changing external factors including application practices and formulations. At a minimum, greater transparency in reporting of quality control measures is needed. Perhaps the greatest challenge for the exposure community is the ability to reach consensus on how to address problems specific to short-lived chemical exposures in observational epidemiology investigations. More extensive conversations are needed to advance our understanding of human exposures and enable interpretation of these data to catch up to analytical capabilities. The problems defined in this review remain exquisitely difficult to address for chemicals like 2,4-D, with short and variable environmental and physiological half-lives and with exposures impacted by numerous and changing external factors.

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“…Nowadays, methods based on large-scale instruments for detecting 2,4-D can be roughly divided into three types: gas chromatography–mass spectrometry (GC-MS) [ 7 ], high-performance liquid chromatography (HPLC) [ 8 , 9 ], high-performance liquid chromatography/mass spectrometry (HPLC/MS) [ 10 ], and so on. For example, as early as 1996, Hong et al detected the residues of 2,4-D in soil by gas chromatography with electron capture detection (GC-EDC) [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Development of a Rapid Gold Nanoparticle Immunochromatographic Strip Based on the Nanobody for Detecting 2,4-DichloRophenoxyacetic Acid

Zhou

et al. 2022

Biosensors

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2,4-Dichlorophenoxyacetic acid (2,4-D) is a systemic conductive herbicide widely used across the world. With the large-scale and continuous use of 2,4-D, its possible harm to the environment and non-target organisms has attracted increasing attention, and the construction of a stable rapid on-site detection method is particularly important. In order to achieve on-site rapid detection of 2,4-D, we developed a gold nanoparticle immunochromatographic strip method with the visual elimination value was 50 ng/mL, and a quantitative detection limit of 11 ng/mL based on a nanobody. By combing with the color snap, the immunochromatographic strip could quantitatively analyze the amounts of 2,4-D. Meanwhile, a colorimetric card based on the true color of the test strips was developed for the qualitative analysis of 2,4-D on-site. The samples (water, fruits and vegetables) with and without 2,4-D were detected by the immunochromatographic strips, and the results showed the accuracy and reliability. Thus, this assay is a rapid and simple on-site analytical tool to detect and quantify 2,4-D levels in environmental samples, and the analytical results can be obtained in about ten minutes. In addition, the nanobody technology used in this study provides an inexhaustible supply of a relatively stable antibodies that can be archived as a nanobody, plasmid or even its sequence.

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Determination of 2,4-D in environmental samples by three phases directly suspended LPME combined with HPLC-UV

Cited by 16 publications

References 41 publications

Determination of Hg(II) ions in sea food samples after extraction and preconcentration by novel Fe3O4@SiO2@polythiophene magnetic nanocomposite

Determination of Hg(II) ions in sea food samples after extraction and preconcentration by novel Fe3O4@SiO2@polythiophene magnetic nanocomposite

Critical and systematic evaluation of data for estimating human exposures to 2,4-dichlorophenoxyacetic acid (2,4-D) – quality and generalizability

Development of a Rapid Gold Nanoparticle Immunochromatographic Strip Based on the Nanobody for Detecting 2,4-DichloRophenoxyacetic Acid

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