Micro-solid phase extraction with helical-solid-sorbent in the presence of organic solvent for gas chromatography–mass spectrometry analysis of per-O-methylated mono- and disaccharides

GC-MS Method for the Quantitation of Carbohydrate Intermediates in Glycation Systems

“…Application of liquid chromatography (LC)-based techniques (LC-MS) resulted in compromised selectivity 30 and sensitivity, 31 although it can be successfully applied for the analysis of specific compound groups (e.g., dicarbonyls). 32 Remarkably, the LODs observed in this study for some monosaccharides (e.g., 1, 3, 7, 11, 12, 13, 15, and 16) and for all oligosaccharides (18−22) were lower than those observed with LC-MS, 33 GC-flame ionization detection (FID), 34 GC-MS, 23 and GC-MS/MS 35 methods. The values obtained here were also advantageous in comparison to those obtained with soft ionization techniques: ESI-MS, 36 MELDI-MS, 37 and MALDI-TOF-MS. 38 The lower method LODs and LOQs in comparison to the corresponding instrument values can be explained by different drying procedures: freeze-drying versus Speedvac.…”

Characterisation of Asturian cider apples on the basis of their aromatic profile by high-speed gas chromatography and solid-phase microextraction

“…Among the proposed techniques found in the bibliography, the most common are solvent extraction 0308-8146/$ -see front matter Ó 2010 Elsevier Ltd. All rights reserved. doi:10.1016/j.foodchem.2010.01.068 (Mpelasoka & Behboudian, 2002), steam distillation (Talarico, Cisero, Villa, & Cavallero, 2005), supercritical fluid extraction (Bhattacharjee, Singhal, Gholap, Variyar, & Bongirwar, 2003), static headspace analysis (Oshita et al, 2000), dynamic headspace analysis (Argenta, Mattheis, Fan, & Finger, 2004), liquid-liquid microextraction (Aubert, Baumann, & Arguel, 2005) and headspace solidphase microextraction (SPME) (Ciucanu, 2006). Although aroma volatile constituents has been established in a number of apple varieties, such as ''Fuji" (Lara, Graell, Lopez, & Echeverría, 2006), ''Golden" (Rizzolo, Grassi, & Zerbini, 2006), ''Gala" (Lo Scalzo, Lupi, Giudetti, & Testoni, 2003), ''Pacific Rose" (Tough & Hewett, 2001), ''Jonagold" (Girard & Laub, 1995), ''Granny Smith" (Matich, Rowan, & Banks, 1996), ''Renetta Canada" (Thedy, Ferrandino, Mombelloni, Pramotton, & Duverney, 2003) and others (Bai, Hagenmair, & Baldwin, 2002), to the best of our knowledge, no cider apple varieties have yet been characterised.…”

Post-derivatization procedure for determination of hippuric acid after extraction by an automated micro solid phase extraction system and monitoring by gas chromatography

“…In spite of wide application of SPE with different type of sorbents, it is established that the SPE is time-consuming (wetting, washing, conditioning, loading, cleaning and elution [34]), and requires high purity of organic solvents [35] that are potentially toxic and expensive. Recently, the micro solid phase extraction (-SPE) was developed for extracting per-O-methylated monosaccharides and disaccharides [36], persistent organic pollutants in tissue samples [37], acidic drugs in wastewaters [38], etc. The automated -SPE devices have some advantages over traditional SPE [31,[39][40][41].…”