四聚乙醛(metaldehyde)的检测方法 1.Determination of metaldehyde residues in various vegetables through HPLC. Aitzetmueller, K | Fox, J | Arzberger, E | Schoettler, H Deutsche Lebensmittel-Rundschau [DTSCH. LEBENSM.-RUNDSCH.]. Vol. 80, no. 7, pp. 201-203. 1984.
A method for the quantitative determination of metaldehyde residues in vegetables by HPLC was developed. Metaldehyde is extracted with toluene from plant substrates and then depolymerized by acid and, in a two-phase reaction, derivatized to the dinitrophenyl hydranzone of acetaldehyde. This is separated from interfering substances and quantitatively determined by way of gradient-elution HPLC on silica with UV detection.
2.Determination of metaldehyde in human serum by headspace solid-phase microextraction and gas chromatography–mass spectrometry Takeshi Saito, et al.; Journal of Chromatography B;Volume 875, Issue 2, 15 November 2008, Pages 573-576
Abstract: A rapid headspace solid-phase microextraction–gas chromatography–mass spectrometry (HS–SPME–GC–MS) method has been developed for the determination of metaldehyde in human serum samples. Metaldehyde is extensively used as a molluscicide for the control of slugs and snails, and cases of metaldehyde poisoning have been reported. Metaldehyde was headspace-extracted on a polydimethylsiloxane (PDMS) fiber at 70 °C for 25 min, desorbed, and analyzed rapidly by GC–MS. The method was validated for limit of detection (LOD), linearity, precision, and recovery. Although the recovery of the sample was very low, the method itself was rapid with a low detection limit of 0.25 μg/ml, R.S.D. value 12.6%, and linearity range 0.5–25.0 μg/ml (r2 = 0.999). The results demonstrated that the SPME–GC–MS method for the analysis of metaldehyde is simple, rapid, solvent-free, and does not require any pre-analysis conversions.
3.The determination of metaldehyde in biological material by head-space gas chromatography GRIFFITHS C. J. Journal of chromatography; 1984, vol. 295, no1, pp. 240-247 (11 ref.) http://cat.inist.fr/?aModele=afficheN&cpsidt=8995405
4.Determination of metaldehyde in workroom air Maini Paolo and Boni Renzo Bulletin of Environmental Contamination and Toxicology; Volume 30, Number 1/1983: 479-484 http://www.springerlink.com/content/v176445x8348x776/