Multi-residue analytical method

Gros M, Petrovic M, Barcelo D (2006) Development of a multi-residue analytical method based on liquid chromatography-tandem mass spectrometry (LC-MS-MS) for screening and trace level determination of pharmaceuticals in surface and wastewaters. Talanta 70 (4) 678-690... 

Thus, organic solvent extraction methods for the extraction of pesticides from water samples can be replaced by the SPE method using Ci8 and PS-2. Ethobenzanid, clomeprop, naproanilide and their acidic metabolites are determined by a multi-residue analytical method using Cig or PS-2 cartridge extraction after acidification of the water samples with hydrochloric acid or other acidic media, followed by HPLC or LC/MS detection. 

Multi-residue analytical method for the determination of acetochlor, alachlor, and metolachlor in aqueous samples... 

A The Multi-residue analytical method is provided for plant, soil and water samples. 

All of the compounds (pyraflufen-ethyl and its metabolites) are converted to E-2 and quantified as the total toxic residue of pyraflufen-ethyl. The conversion to E-2 is carried out by oxidative decomposition with concentrated sulfuric acid. The reaction mixture is extracted with a solvent and subjected to simple cleanup, followed by GC/NPD analysis. This method is rapid and simple compared with the Multi-residue analytical method , and has wide applicability to different varieties of the samples, such as plant materials, soils and water, with only minor adjustment of the analytical method. 

LC/MS is used as a multi-residue analytical method. The recovery of imidacloprid from tomato was 90-105% for 0.05 and 0.5mgkg . The LOD for imidacloprid was < 10 pg kg in the full-scan mode and 1 pg kg in the selected-ion monitoring (SIM) mode. ... 

Multi-residue analytical method is provided for potatoes. 

A Multi-residue analytical method (for plants) is used for rice, citrus and tomato. Buprofezin and p-OH-buprofezin (as the acetylated derivative, p-AcO-buprofezin) are analyzed simultaneously using gas chromatography/nitrogen-phosphorus detection (GC/NPD). 

C Multi-residue analytical method (for soil) determines buprofezin and BF12 in soil sample simultaneously using GC/NPD. 

Multi-residue analytical method (for plant and soil) is provided for plants (apple, grape etc.) and soil samples. After GPC cleanup, fenpyroximate and M-1 are analyzed simultaneously using gas chromatography (GC)/NPD. 

Rodil, R., J.B. Quintana, P. Lopez-Mahia, et al. 2009. Multi-residue analytical method for the determination of emerging pollutants in water by solid-phase extraction and liquid chromatography-tandem mass spectrometry. J. Chromatogr. A. 1216 2958-2969. 

Gros M, Petrovic M, Barcelo D. Multi-residue analytical methods using LC-tandem MS for the determination of pharmaceuticals in environmental and wastewater samples a review, Anal. Bioanal. Ghent. 2006 386(4) 941-952. 

Matsuoka, T., Akiyama, Y., and Mitsuhashi, T. 2011. Application of multi-residue analytical method for determination of 496 pesticides in frozen gyoza dumplings by GC-MS and LC-MS. J. Pestic. Sci. 36 486 91. 

Multi-residue analytical methods are those designed for circumstances where several analytes are to be measured in the same procedure. These multiple analytes could be closely related (e.g., antimicrobial compounds of a given structural type), or be used for a common purpose (e.g., antimicrobials of all kinds), or an even broader class of compounds (e.g., pharmaceutical compounds in general). 

Al-Odaini NA, Zakaria MP, Yaziz Ml, Surif S. Multi-residue analytical method for human pharmaceuticals and synthetic hormones in river water and sewage effluents by solid-phase extraction and liquid chromatography—tandem mass spectrometry. J Chromatogr A 2010 1217(44) 6791-806. 

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