Self-rotating Stir Mesh Screen Sorptive Extraction for analyzing Chlorpyrifos by Ion Mobility Spectrometry

2021 ◽  
Author(s):  
Mansoure Kermani ◽  
Mohammad Taghi Jafari ◽  
Mohammad Saraji
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Sorptive Extraction ◽  
Mesh Screen ◽  
First Time

A mesh screen was electrochemically coated with polypyrrole and used as a sorptive extractor device, for the first time. This configuration acts in such a way that it has self-rotating...

Fabric-phase sorptive extraction coupled with ion mobility spectrometry for on-site rapid detection of PAHs in aquatic environment

Talanta ◽  
2019 ◽  
Vol 195 ◽  
pp. 109-116 ◽  
Author(s):  
Tangqiang Sun ◽  
Di Wang ◽  
Yan Tang ◽  
Xuebin Xing ◽  
Jingcong Zhuang ◽  
...  
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Aquatic Environment ◽  
Rapid Detection ◽  
Sorptive Extraction

scholarly journals Development of Microchip Isotachophoresis Coupled with Ion Mobility Spectrometry and Evaluation of Its Potential for the Analysis of Food, Biological and Pharmaceutical Samples

Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6094
Author(s):  
Jasna Hradski ◽  
Marta Ďuriš ◽  
Roman Szucs ◽  
Ladislav Moravský ◽  
Štefan Matejčík ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Linear Calibration ◽  
Complex Samples ◽  
Quantitation Limit ◽  
Analytical Potential ◽  
Trace Compounds ◽  
First Time ◽  
Ear Drops

An online coupling of microchip isotachophoresis (µITP) with ion mobility spectrometry (IMS) using thermal evaporation interface is reported for the first time. This combination integrates preconcentration power of the µITP followed by unambiguous identification of trace compounds in complex samples by IMS. Short-chain carboxylic acids, chosen as model analytes, were first separated by the µITP in a discontinuous electrolyte system at pH 5–6, and subsequently evaporated at 130 °C during their transfer to the IMS analyzer. Various parameters, affecting the transfer of the separated sample components through the evaporation system, were optimized to minimize dispersion and loss of the analytes as well as to improve sensitivity. The following analytical attributes were obtained for carboxylic acids in the standard solutions: 0.1–0.3 mg L−1 detection limits, 0.4–0.9 mg L−1 quantitation limits, linear calibration range from the quantitation limit to 75 mg L−1, 0.2–0.3% RSD of the IMS response and 98–102% accuracy. The analytical potential of the developed µITP-IMS combination was demonstrated on the analysis of various food, pharmaceutical and biological samples, in which the studied acids are naturally present. These include: apple vinegar, wine, fish sauce, saliva and ear drops. In the real samples, 0.3–0.6% RSD of the IMS response and 93–109% accuracy were obtained.

scholarly journals Detection and Identification of VOCs Using Differential Ion Mobility Spectrometry (DMS)

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 234
Author(s):  
Wojciech Fabianowski ◽  
Mirosław Maziejuk ◽  
Monika Szyposzyńska ◽  
Monika Wiśnik-Sawka
Keyword(s):  
Organic Compounds ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Electric Field Intensity ◽  
Ion Temperature ◽  
Acetate Esters ◽  
Differential Ion Mobility Spectrometry ◽  
Detection And Identification ◽  
Volatile Organic ◽  
First Time

The article presents a technique of differential ion mobility spectrometry (DMS) applicable to the detection and identification of volatile organic compounds (VOCs) from such categories as n-alkanes, alcohols, acetate esters, ketones, botulinum toxin, BTX, and fluoro- and chloro-organic compounds. A possibility of mixture identification using only the DMS spectrometer is analyzed, and several examples are published for the first time. An analysis of different compounds and their mechanisms of fragmentation, influence on effective ion temperature, and high electric field intensity is discussed.

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