Results 151 to 160 of about 5,843 (185)

An optimized GC-IMS system with significantly increased sensitivity

2018
Ion mobility spectrometers are extremely fast and sensitive trace gas detectors, but when analyzing complex mixtures, they suffer from disadvantages associated with atmospheric pressure chemical ionization (APCI). This ionization is however necessary for achieving outstanding sensitivity.
Kirk, Ansgar T., Kueddelsmann, Maximilian J., Zimmermann, Stefan   +2 more
openaire   +1 more source

GC-IMS in Medicine: Transforming Diagnostics with Sensitivity and Speed

Critical Reviews in Analytical Chemistry
Rapid, nondestructive, high-throughput volatile constituent screening and detection is becoming more and more crucial in the medical field's illness analysis. GC-IMS, or gas chromatography-ion mobility spectrometry, is a potent method for the sensitive identification and separation of volatile organic molecules. GC-IMS enables rapid detection with high
Xiaoyue Zhao, Miao Zhang, Jing He, Xin Li, Xuewei Zhuang   +4 more
openaire   +2 more sources

Chemical Agent Detection Using GC-IMS: A Comparative Study

IEEE Sensors Journal, 2010
Low-cost and portable gas chromatography-ion mobility spectrometry (GC-IMS) has been used to identify chemicals. To accomplish this, two parameters are used. The first parameter relates to the GC retention time (RT), which is the residence time of an analyte as it passes through the column. Different chemicals have different RTs.
Chiman Kwan, A. Peter Snyder, Richard P. Erickson, Philip A. Smith, Waleed M. Maswadeh, Bulent Ayhan, Janet L. Jensen, James O. Jensen, Ashish Tripathi   +8 more
openaire   +1 more source

Determination of volatile compounds by GC–IMS to assign the quality of virgin olive oil

Food Chemistry, 2015
The characterisation of different olive oil categories (extra virgin, virgin and lampante) using Ion Mobility Spectrometry (IMS) was improved by replacing the multicapillary column (MCC) with a capillary column (CC). The data obtained with MCC-IMS and CC-IMS were evaluated, studying both the global and the specific information obtained after the ...
Rocío, Garrido-Delgado, María del Mar, Dobao-Prieto, Lourdes, Arce, Miguel, Valcárcel   +3 more
openaire   +2 more sources

Development of an explosives detection system using fast GC-IMS technology

Proceedings IEEE 32nd Annual 1998 International Carnahan Conference on Security Technology (Cat. No.98CH36209), 2002
Development and integration of GC-IMS (Gas Chromatography-Ion Mobility Spectrometry) as a core technology has resulted in two dedicated explosive detection system configurations. The past R&D efforts that have led to the present ORION and ORION Plus explosive detection systems are chronicled.
L.V. Haley, J.M. Romeskie
openaire   +1 more source

Variable selection in GC‐IMS data analysis using the Python package “gc‐ims‐tools”

Lebensmittelchemie, 2022
Joscha Christmann, Sascha Rohn, Philipp Weller   +2 more
openaire   +1 more source

Fast and Direct Detection of Biogenic Amines in Fish by GC-IMS Technology

2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG), 2019
The presence of biogenic amines in food is of great concern to the food industry as, given the potential risk to human health, there is a growing demand from consumers and control authorities to reduce the allowed limits of biogenic amines in food and beverages.Several methodologies, such as differential culture media, specific enzyme methods and ...
Claudia Espalha, Jorge Fernandes, Mario Diniz, Valentina Vassilenko   +3 more
openaire   +1 more source

Charakterisierung von Aromaminzen mittels GC‐MS und GC‐IMS

Lebensmittelchemie
Minzen (Mentha spp.) repräsentieren eine vielfältige Gattung aromatischer Pflanzen, die sich durch artspezifische Profile flüchtiger organischer Verbindungen (VOCs) differenzieren lassen [1]. In den Blättern dieser Pflanzen wurden am häufigsten die VOCs Menthon, Menthol, Limonen und Menthylacetat nachgewiesen.
R. Schmidt, S. Hillebrand, M. Weber, S. Sielemann   +3 more
openaire   +1 more source

Hochaufgelöste Atemgasanalyse mittels GC/IMS

Pneumologie, 2007
M Decker, A Kikowatz, G Becher, J Baumbach   +3 more
openaire   +1 more source

Surrogate-Matrix Calibration for Quantitative GC-IMS Headspace Analysis of Urine

Quantitative analysis of volatile organic compounds (VOCs) in biological matrices remains challenging due to matrix-dependent headspace partitioning, the presence of endogenous analytes, and the intrinsically non-linear response of certain detectors. In this context, static headspace gas chromatography–ion mobility spectrometry (HS-GC-IMS) offers high ...
Gema Guedes de la Cruz, Tecla Duran-Fort, Luis Fernandez, Paula Morago, Clarence Jim Rengel, Josep Guma, Santiago Marco, Antonio Pardo   +7 more
openaire   +1 more source