Determination of Volatile Amines Using Needle-Type Extraction Coupled with Gas Chromatography–Barrier Discharge Ionization Detection

Purge-and-trap Determination of Ammonia in Water Samples Using Needle-type Extraction Coupled with Gas Chromatography-Barrier Discharge Ionization Detection

“…In our previous work, the peak area of NH3 in a gaseous sample linearly increased with sampling volumes of 50 -300 mL. 21 The reason for the different results here could be the presence of water vapor in headspace sample: water vaper adsorption on the adsorbent during headspace sampling could prevent the adsorption of NH3. On the basis of this result, the headspace sampling volume was set at 100 mL.…”

“…More recently, we have reported the determination of low-molecular-weight amines, including NH3 in gaseous samples by the extraction needle based GC-BID method. 21 Carboxylic acid-coated macroporous terephthalic acid particles were used to trap volatile amines in gaseous samples via ionic adsorption. Subsequent thermal desorption of amine analytes from the adsorbent occurred in the GC injection port.…”

A simple and universal headspace GC-FID method for accurate quantitation of volatile amines in pharmaceuticals

“…Chromatographic and electrophoresis separation techniques are oen used to analyze volatile amines in various sample types, as they enable selective and sensitive quantitation when applied with appropriate sample preparation strategies. 1,[9][10][11][12] For example, Riekkola et al 13 applied commercial solid phase microextraction (SPME) technology coupled to gas chromatography-mass spectrometry (GC-MS) to analyze volatile amines in wastewater and atmosphere, 13 while Anderson et al 14 developed nickel-coordinated polymeric ionic liquids as SPME coatings to improve extraction selectivity and detection sensitivity of these analytes from tap and lake water. 14 An orthogonal strategy to reduce the potential activity of amines, as well as improve their detection sensitivity is by chemical derivatization of the analytes.…”

Bimodal single-atom iron nanozyme biosensor for volatile amine and food freshness detection

“…Moreover, VAs have adverse effects on human health, including symptoms such as loss of appetite, headache, nausea, vomiting, and other related ailments [3]. While methods such as gas chromatography [4,5], gas mass spectrometry [6,7], and high-performance liquid chromatography [8] have been employed for VAs detection, they have certain limitations, such as the need for professional operation and high cost. Consequently, there is a growing need to develop real-time, cost-effective, and efficient methods for monitoring VAs to ensure food quality and safety.…”