Determination of biogenic amines in fish tissues by ion-exchange chromatography with conductivity detection

Hydrazone-based ligands for micro-solid phase extraction-high performance liquid chromatographic determination of biogenic amines in orange juice

“…The LODs and LOQs for BAs were found to be in the range of 3.8-31.3 and 12.7-104 ng L −1 , respectively (Table 1). These values were comparatively lower than those obtained in previously reported procedures [30][31][32].…”

Determination of aliphatic amines by cation‐exchange chromatography with suppressed conductivity detection after solid phase extraction*

“…Under such defined chromatographic and conductometric conditions, the analytical performance expressed in terms of LOD, linear range, sensitivity and coefficients of correlation are summarized in Table 2. As can be seen, the LODs obtained here and determined at a S/N equal to 3, comprise between 20 and 65 nM and can be considered similar or slightly lower than those obtained with other analytical procedures based on LC or capillary ion electrophoresis coupled with spectrophotometric, MS and electrochemical detection [11,18]. In addition, Table 2 shows an overview of the conductometric capability towards the detection of several aliphatic mono-and polyamines expressed in terms of molar sensitivity (nS/ lM).…”

“…The limit of quantification (LOQ) determined at a S/N of 10 evaluated with the proposed SPE procedure, using a preconcentration factor of 5:1 (i. e. 10 mL of standard solution extracted with (1 + 1) mL of BaCl 2 and H 2 SO 4 solutions), ranged between 10 and 20 nM for all investigated molecules. The LOD and the LOQ obtained here can be considered sensibly lower than those obtained with other analytical procedures based on LC technique with suppressed conductivity detection [11,18].…”

Extraction of bioactive amines from grated Parmesan cheese using acid, alkaline and organic solvents

“…It is also possible to use acids: hydrochloric (Gennaro et al, 2003;Cinquina et al, 2004;Martuscelli et al, 2005); perchloric (Novella-Rodrı´guez et al, 2000;Pinho et al, 2001;Minocha and Long, 2004); trichloroacetic (Joosten and Olieman, 1986;Pattono et al, 2000;Lapa-Guimara˜es and Pickova, 2004); or sulfosalicylic (Buts et al, 1995). Acids can extract amines that are bound to components of the matrix.…”