Various theoretical approaches based on capture collision theory have been developed to compute the rate coefficients of ion-molecule reactions in the gas phase. These theoretical methods require the electric dipole…
These computed molecular parameters, including dipole moment, polarizability, proton affinity, and ionization energy of volatile organic compounds (VOCs), are crucial for the identification and quantification of VOCs in chemical ionization…
SIFT-MS Analytic Method These Direct Injection Mass Spectrometry (DIMS) techniques rely on calibrating instruments using standards with known concentrations and protonated ion signals. Although the most accurate analysis requires calibrating…
Soft chemical ionization is a powerful analytical technique employed in Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) for the precise detection and quantification of trace gases, particularly volatile organic compounds…
Chemical ionization mass spectrometry Chemical ionization mass spectrometry (CI-MS) is a technique used to analyze chemical compounds by ionizing them in the gas phase using chemical reactions rather than electron…
Volatile organic compounds (VOCs) are found in many food and flavor products, and their presence can affect the flavor, aroma, and quality of the product. VOCs are used to analyze…