Determination of the fungicide vinclozolin in honey and bee larvae by solid-phase and solvent extraction with gas chromatography and electron-capture and mass spectrometric detection

Determination and validation of a simple high-performance liquid chromatographic method for simultaneous assay of iprodione and vinclozolin in human urine

“…Methods used to analyse fungicides and their residues are similar to those used for other pesticides. Gas chromatography (GC) is a classical method, and presently GC-MS is often used [16][17][18][19] and liquid chromatography (LC) is more widely recommended for thermally and unstable labile compounds, usually in conjunction with UV, fluorimetric detection or with a mass spectrometry system [20][21][22][23][24][25][26][27][28]. Rodriguez of fungicides from vegetables [29].…”

Pesticide Residues in Bee Products

“…The disadvantages are the more expensive consumables (solid phase extraction microcolumns), the specialized staff, the differences between lots of microcolumns and the possible absorption of some substances on the polypropylene used in cartridges. Specifically, the sample is dissolved in water Bernal et al, 1996), alcohol or mixtures of them (Karazafiris et al, 2008;Jimenez et al, 2008), followed by activation of the microcolumn with the same solvent. Subsequently, the sample is passed through a microcolumn containing a suitable solid material, which captures the analyte.…”

“…For example, coumaphos is unstable in an alkaline environment, as opposed to amitraz, the recovery increases with increasing pH values up to 11 (Korta et al, 2001). A comparison of the effectiveness of SPE and SE in pesticide residue analysis was conducted in two publications by Bernal et al (1996Bernal et al ( & 2000. According to the results of the comparison, it should be noted that the recovery rate with both techniques was similar, but SPE proved superior to the purity of the chromatograms.…”

“…• Mass Spectrometry (MSD), to detect pyrethroid, organophosphate, carbamate and organochlorine insecticide or acaricide residues (Albero et al, 2004;Baltussen et al, 1996;Bernal et al, 1996;Chauzat et al, 2006;Rissato et al, 2004). …”

Διερεύνηση Της Επιβάρυνσης Των Προϊόντων Κυψέλης Από Φυτοπροστατευτικές Ουσίες Στο Περιβάλλον Της Μέλισσας

“…[117] 1. αληρλεπηέο ECD θαη NPD [118], [119] Σα φξηα πνζνηηθνχ πξνζδηνξηζκνχ ηεο MSPD, ζε απηέο ηεο έξεπλεο ήηαλ ρακειφηεξα απφ 0.015 mg kg -1 θαη ην πνζνζηφ αλάθηεζεο θπκάλζεθε κεηαμχ 60% θαη 113%. Αλαιπηηθφηεξα, ην δείγκα δηαιχεηαη ζε λεξφ [90], [123] αιθνφιε [124] ή κίγκα απηψλ [59], [106], [125], [126] θαη αθνινπζεί ελεξγνπνίεζε ησλ κηθξνζηειψλ κε ηνπο ίδηνπο δηαιχηεο. Αθνινχζσο, ην δείγκα δηέξρεηαη δηακέζνπ κηαο κηθξνζηήιεο πνπ πεξηέρεη θαηάιιειν ζηεξεφ πιηθφ, ην νπνίν θαηαθξαηά ηηο πξνο αλάιπζε νπζίεο.…”