跳转至内容
Merck
CN
  • Behavior of Multiclass Pesticide Residue Concentrations during the Transformation from Rose Petals to Rose Absolute.

Behavior of Multiclass Pesticide Residue Concentrations during the Transformation from Rose Petals to Rose Absolute.

Journal of agricultural and food chemistry (2015-05-06)
Oriane Tascone, Yoann Fillâtre, Céline Roy, Uwe J Meierhenrich
摘要

This study investigates the concentrations of 54 multiclass pesticides during the transformation processes from rose petal to concrete and absolute using roses spiked with pesticides as a model. The concentrations of the pesticides were followed during the process of transforming the spiked rose flowers from an organic field into concrete and then into absolute. The rose flowers, the concrete, and the absolute, as well as their transformation intermediates, were analyzed for pesticide content using gas chromatography/tandem mass spectrometry. We observed that all the pesticides were extracted and concentrated in the absolute, with the exception of three molecules: fenthion, fenamiphos, and phorate. Typical pesticides were found to be concentrated by a factor of 100-300 from the rose flowers to the rose absolute. The observed effect of pesticide enrichment was also studied in roses and their extracts from four classically phytosanitary treated fields. Seventeen pesticides were detected in at least one of the extracts. Like the case for the spiked samples in our model, the pesticides present in the rose flowers from Turkey were concentrated in the absolute. Two pesticides, methidathion and chlorpyrifos, were quantified in the rose flowers at approximately 0.01 and 0.01-0.05 mg kg(-1), respectively, depending on the treated field. The concentrations determined for the corresponding rose absolutes were 4.7 mg kg(-1) for methidathion and 0.65-27.25 mg kg(-1) for chlorpyrifos.

材料
产品编号
品牌
产品描述

Sigma-Aldrich
乙腈, anhydrous, 99.8%
Sigma-Aldrich
甲苯, anhydrous, 99.8%
Sigma-Aldrich
丁香酚, ReagentPlus®, 99%
Sigma-Aldrich
芳樟醇, 97%
Sigma-Aldrich
香叶醇, 98%
Sigma-Aldrich
2-苯乙醇, ≥99.0% (GC)
Sigma-Aldrich
乙酸, suitable for luminescence, BioUltra, ≥99.5% (GC)
Sigma-Aldrich
乙腈, electronic grade, 99.999% trace metals basis
Sigma-Aldrich
丁香酚, natural, ≥98%, FG
Sigma-Aldrich
碳纳米纤维, graphitized, platelets(conical), >98% carbon basis, D × L 100 nm × 20-200 μm
Sigma-Aldrich
碳纳米纤维, pyrolitically stripped, platelets(conical), >98% carbon basis, D × L 100 nm × 20-200 μm
Sigma-Aldrich
苯乙醇, ≥99%, FCC, FG
Sigma-Aldrich
乙酸, ≥99.5%, FCC, FG
Sigma-Aldrich
乙酸, natural, ≥99.5%, FG
Sigma-Aldrich
芳樟醇, ≥97%, FCC, FG
Sigma-Aldrich
β-香茅醇, 95%
Sigma-Aldrich
香叶醇, ≥97%, FCC, FG
Sigma-Aldrich
碳,介孔, less than 100 ppm Al, Ti, Fe, Ni, Cu, and Zn combined
Sigma-Aldrich
香叶醇, natural, ≥97%, FG
Sigma-Aldrich
苯乙醇, natural, ≥99%, FCC, FG
Sigma-Aldrich
碳,介孔, nanopowder, less than 500 ppm Al, Ti, Fe, Ni, Cu, and Zn combined
Sigma-Aldrich
丁香酚, ≥98%, FCC, FG
Sigma-Aldrich
香茅醇, ≥95%, FCC, FG
Sigma-Aldrich
碳,介孔
Sigma-Aldrich
石墨化碳, nanopowder, graphitized, less than 250 ppm Al, Ti, Fe, Ni, Cu, and Zn combined
Sigma-Aldrich
乙酸香叶酯, ≥97%
Sigma-Aldrich
香茅醇, mixture of isomers, natural, ≥95%, FG
Sigma-Aldrich
(-)-芳樟醇, ≥95.0% (sum of enantiomers, GC)
Sigma-Aldrich
乙酸香茅酯, ≥95%, FCC, FG
Sigma-Aldrich
甲苯, JIS special grade, ≥99.5%