Thin film nanofibers containing ZnTiO3 nanoparticles for rapid evaporation of extraction solvent: application to the preconcentration of chlorpyrifos prior to its quantification by ion mobility spectrometry

Rezayat, Mohammad; Jafari, Mohammad T.; Rahmanian, Fatemeh

doi:10.1007/s00604-018-3167-x

Cited by 19 publications

(5 citation statements)

References 31 publications

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“…Different variables including type and volume of dispersive solvent, type and volume of extraction solvent, centrifuging rate and time, and pH of solution were investigated for DLLME 15 . Figure S4 (supporting information) shows the results obtained for optimization of dispersive and extraction solvent type, centrifuging rate, and pH using one‐factor‐at‐a‐time methodology.…”

Section: Resultsmentioning

confidence: 99%

“…The combination of two microextraction methods, dispersive liquid–liquid microextraction and thin‐film evaporation (DLLME‐TFE), 15 was used to determine 2,4‐ and 2,6‐DNT isomers. To this end, the extraction solvent was transferred onto the thin film for solvent evaporation so that only the extracted analytes were introduced into the injection port of the IMS setup.…”

Section: Methodsmentioning

confidence: 99%

“…For example, thin‐film evaporation (TFE) has been reported as an effective method for removing the solvent after the dispersion liquid–liquid microextraction (DLLME) method. The results indicated that a high enrichment factor and a more efficient clean‐up were obtained in this combination, increasing the sensitivity in IMS 15 …”

Section: Introductionmentioning

confidence: 94%

“…The results indicated that a high enrichment factor and a more efficient clean-up were obtained in this combination, increasing the sensitivity in IMS. 15 Dinitrotoluene isomers are widely used in different industries, such as producing polyurethane foams and explosives (e.g., TNT). 16 2,4-DNT and 2,6-DNT are known as significant compounds in the second step of the nitration of toluene for 2,4,6-TNT production.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of different alcoholic modifiers for the separation and determination of two isomers of dinitrotoluene (2,4 and 2,6) by ion mobility spectrometry

Hariri

Jafari

Jazan

2022

Rapid Comm Mass Spectrometry

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Some alcoholic modifier gases were applied to separate isomer peaks in ion mobility spectrometry (IMS). Different mechanisms have been investigated on the separation, such as collision cross-section and analyte-modifier cluster formation. In this regard, some parameters that affected the cluster formation, such as dipole moment, electron affinity, the position of functional groups, and the modifier structure, were evaluated. On the other hand, some effective experimental parameters, including cell temperature and the flow rates of the drift and modifier gases, were also optimized.The combination of dispersive liquid-liquid microextraction with thin-film evaporation (DLLME-TFE) was used as a sample preparation method for the extraction of 2,4-dinitrotoluene (2,4-DNT) and 2,6-dinitrotoluene (2,6-DNT) isomers (as the target analytes). Isobutanol was selected as the alcoholic modifier to separate the ion molecular peaks of these isomers. The limit of detection and the limit of quantification obtained were 15 and 50 μg L À1 , and the linear dynamic range (50-700 μg L À1 ) with coefficient of determination of 0.9941 and 0.9914 were obtained for 2,4-DNT and 2,6-DNT, respectively. The intra-and inter-day relative standard deviations were obtained between 3% and 5%. For validation of the method, determination of the isomers was accomplished for a red wastewater field sample, resulting in relative recovery values of about 96%.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of different alcoholic modifiers for the separation and determination of two isomers of dinitrotoluene (2,4 and 2,6) by ion mobility spectrometry

Hariri

Jafari

Jazan

2022

Rapid Comm Mass Spectrometry

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show abstract

“…The IMS instrument works based on the mobility of ion molecules in the gaseous phase and it has been applied for the detection of some compounds, including environmental pollutants, drugs, and pesticides [ 16 ]. In combination of DLLME with IMS, solvent interference may be produced, decreasing the precision, accuracy, and IMS signal of the target analyte [ 17 , 18 ]. To overcome this problem, the hyphenated method of DLLME-SPME was introduced by Jafari et al [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

A configuration for cooling assisted organic solvent coated thin film microextraction after dispersive liquid-liquid microextraction method: A microextraction method for ultra-trace analyzing of volatile sample

Rezayat,

Jafari,

Mohammadipour

2024

Heliyon

Self Cite

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Development of dispersive liquid–liquid microextraction with solid-phase evaporation as a novel hyphenated method prior to ion mobility spectrometry and its application for trace analysis of fluoxetine

et al. 2023

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Thin film nanofibers containing ZnTiO3 nanoparticles for rapid evaporation of extraction solvent: application to the preconcentration of chlorpyrifos prior to its quantification by ion mobility spectrometry

Cited by 19 publications

References 31 publications

Investigation of different alcoholic modifiers for the separation and determination of two isomers of dinitrotoluene (2,4 and 2,6) by ion mobility spectrometry

Investigation of different alcoholic modifiers for the separation and determination of two isomers of dinitrotoluene (2,4 and 2,6) by ion mobility spectrometry

A configuration for cooling assisted organic solvent coated thin film microextraction after dispersive liquid-liquid microextraction method: A microextraction method for ultra-trace analyzing of volatile sample

Development of dispersive liquid–liquid microextraction with solid-phase evaporation as a novel hyphenated method prior to ion mobility spectrometry and its application for trace analysis of fluoxetine

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