Abstract：
:The aim of this work was to report on imidacloprid [IUPAC name 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine] residues in some vegetables, fruits, and water samples collected from the West Bank, Palestine, in 1998 and 1999. Imidacloprid and its derivatives in the study samples were extracted by methanol/water and oxidized into 6-chloronicotinic acid and subsequently derivatized into 6-chloronicotinic acid trimethylsilyl ester before being determined by GC/MS. Imidacloprid residues were detected in more than half of the analyzed samples. The highest and lowest imidacloprid concentrations were found in eggplant (0.46 mg/kg) and green beans (0.08 mg/kg), respectively. An increase of 11-120% in imidacloprid concentration in the 1999 samples was observed when compared with those of 1998. This may suggest imidacloprid accumulation in the soil and/or increased use by local farmers. The imidacloprid residue concentrations in several crops were found to exceed the CODEX maximum residue limit.
journal_name
Environ Geochem Healthjournal_title
Environmental geochemistry and healthauthors
Daraghmeh A,Shraim A,Abulhaj S,Sansour R,Ng JCdoi
10.1007/s10653-006-9060-2subject
Has Abstractpub_date
2007-02-01 00:00:00pages
45-50issue
1eissn
0269-4042issn
1573-2983journal_volume
29pub_type
杂志文章abstract：:Despite some researches indicating the possibility of correlation being induced by the common variable effect, correlation plots of ionic ratio (Na+/Cl-) versus ionic concentration (Cl-) still remain popular for interpreting the causes of groundwater salinization. There were doubts about relevance of spurious correlat...
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