Rapid analysis of tile industry gaseous emissions by ion mobility spectrometry and comparison with solid phase micro-extraction/gas chromatography/mass spectrometry

Pozzi, Romina; Bocchini, Paola; Pinelli, Francesca; Galletti, Guido C.

doi:10.1039/b609850a

Cited by 15 publications

(3 citation statements)

References 25 publications

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“…Ion mobility spectrometry (IMS) is a fast, simple, and sensitive technique with a wide range of applications in chemistry, pharmacology, clinical diagnosis, security, and biomedical sciences. , IMS is a well-established technique for the detection of explosives, , industrial chemicals, environmental pollution, chemical warfare agents, , and many other volatile organic compounds . The IMS detection technique is based on the measurement of the drift time or the mobility of ions produced from an analyte.…”

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confidence: 99%

Humidity Effect on the Drift Times of the Reactant Ions in Ion Mobility Spectrometry

et al. 2019

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The effect of moisture content on the drift times of NH4 + and H3O+ reactant ions at different temperatures was experimentally and theoretically studied using an ion mobility spectrometer (IMS). The peak positions of the ions shifted to higher drift times as the humidity of the drift gas increased. The peak displacements were attributed to the consecutive formation of hydrated ion clusters, RI+(H2O) n . Using chemical equilibrium relations and thermodynamic data derived from DFT calculation, a model was proposed to formulate the change in the drift times as 1/t d = 1/t d Θ – βT log[H2O], where β is a constant and T is temperature. [H2O] is the concentration of water in ppm and, t d Θ is the drift time at the standard condition of [H2O] = 1 ppm. The proposed equation perfectly predicted the change in the drift times of the reactant ions as a function of the moisture in the drift gas. Accordingly, standard mobility, K = K Θ – γT ln[H2O], was defined, which is independent of the moisture level of the drift gas and reflects the chemical reactivity. In this work, it is proposed to correct the reported reduced mobilities for the moisture to a standard condition of 1 ppm water concentration, in a similar manner to the corrections to the standard temperature and pressure of 273 K and 760 mbar, respectively. Finally, the likelihood that different hydrates forms of the reactant ion exist is discussed based on the entropy concept.

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Humidity Effect on the Drift Times of the Reactant Ions in Ion Mobility Spectrometry

et al. 2019

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“…GC-IMS has also been employed as a sensor for the detection of perfluorocarbons and in the evaluation of gaseous emissions (e.g., ethyl acetate, ethanol, ethylene glycol, acetaldehyde, formaldehyde, toluene, etc.) from different industries by direct analysis of airflow, with detection limits down to 0.40 ppb [79,80]. In addition, the IMS technique has been used for the detection of nitrates and nitrites in water samples, with detection limits of 10 ppb and 40 ppb, respectively [81].…”

Section: Environmental Analysismentioning

confidence: 99%

Total Ion Chromatogram and Total Ion Mass Spectrum as Alternative Tools for Detection and Discrimination (A Review)

et al. 2022

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Gas chromatography (GC) and mass spectrometry (MS) are widely used techniques in the analysis of complex mixtures due to their various advantages, such as high selectivity, reproducibility, precision, and sensitivity. However, the data processing is often complex and time-consuming and requires a great deal of experience, which might be a serious drawback in certain areas, such as quality control, or regarding research in the field of medicine or forensic sciences, where time plays a crucial role. For these reasons, some authors have proposed the use of alternative data processing approaches, such as the total ion chromatogram or total mass spectrum, allowing these techniques to be treated as sensors where each retention time or ratio m/z acts as a sensor collecting total intensities. In this way, the main advantages associated with both techniques are maintained, but the outcomes from the analysis can be reached in a faster, simpler, and an almost automated way. In this review, the main features of the GC- and MS-based analysis methodologies and the ways in which to apply them are highlighted. Moreover, their implementation in different fields, such as agri-food, forensics, environmental sciences, or medicine is discussed, highlighting important advantages as well as limitations.

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“…Regression techniques including multivariate linear regression, principal component regression (PCR), partial least squares regression (PLSR) and n-way PLSR (n-PLSR) are also frequently employed in the analysis of the IMS data 94 (see Table 3). They are routinely used in food quality and safety control analyses, 94,95 environmental analyses [96][97][98] and in process monitoring. 99 Detailed information about these chemometric techniques can be found in ref.…”

Section: Supervised Analysismentioning

confidence: 99%

Chemometrics for ion mobility spectrometry data: recent advances and future prospects

Szymańska

Davies

Buydens

2016

Analyst

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Historically, advances in the field of ion mobility spectrometry have been hindered by the variation in measured signals between instruments developed by different research laboratories or manufacturers. This has triggered the development and application of chemometric techniques able to reveal and analyze precious information content of ion mobility spectra. Recent advances in multidimensional coupling of ion mobility spectrometry to chromatography and mass spectrometry has created new, unique challenges for data processing, yielding high-dimensional, megavariate datasets. In this paper, a complete overview of available chemometric techniques used in the analysis of ion mobility spectrometry data is given. We describe the current state-of-the-art of ion mobility spectrometry data analysis comprising datasets with different complexities and two different scopes of data analysis, i.e. targeted and non-targeted analyte analyses. Two main steps of data analysis are considered: data preprocessing and pattern recognition. A detailed description of recent advances in chemometric techniques is provided for these steps, together with a list of interesting applications. We demonstrate that chemometric techniques have a significant contribution to the recent and great expansion of ion mobility spectrometry technology into different application fields. We conclude that well-thought out, comprehensive data analysis strategies are currently emerging, including several chemometric techniques and addressing different data challenges. In our opinion, this trend will continue in the near future, stimulating developments in ion mobility spectrometry instrumentation even further.

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Rapid analysis of tile industry gaseous emissions by ion mobility spectrometry and comparison with solid phase micro-extraction/gas chromatography/mass spectrometry

Cited by 15 publications

References 25 publications

Humidity Effect on the Drift Times of the Reactant Ions in Ion Mobility Spectrometry

Humidity Effect on the Drift Times of the Reactant Ions in Ion Mobility Spectrometry

Total Ion Chromatogram and Total Ion Mass Spectrum as Alternative Tools for Detection and Discrimination (A Review)

Chemometrics for ion mobility spectrometry data: recent advances and future prospects

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