The determination of pesticides in water is fundamental to the solution of environmental
problems as natural waters are usually contaminated with a large number of pesticides. The …

A review is presented of the modern techniques and approaches in methods for pesticide
residue analysis in water matrices. The state of the art of the individual steps (extraction …

Solid-phase microextraction (SPME) was investigated as a solvent-free alternative method
for the extraction and analysis of nonpolar semivolatile analytes. Analytes were extracted …

Concentrations of all detected pesticides in rural well water are very low and are rarely
expected to exceed any health-based standard. The occurrence of nitrate/nitrite, however, is …

Solid-phase extraction (SPE) has become and important and frequently employed method
for the preconcentration of organic pollutants from water samples. From the methodological …

A method for the determination of eight chlorophenols in tap water is proposed, involving the
direct acetylation of the chlorophenols in water samples with acetic anhydride in the …

Liquid–liquid extraction (LLE), compared with solid-phase extraction (SPE), has been found
to be effective for the isolation of herbicide and pesticide organic compounds from industrial …

In the proposed method, an extraction solvent with a lower toxicity and density than the
solvents typically used in dispersive liquid–liquid microextraction was used to extract seven …

A multiresidue analytical method based on C 18 solid-phase extraction and one-run HPLC
determination has been developed for the analysis of eleven acidic, neutral and weak basic …

Solid-phase microextraction (SPME), a single-step solvent-free extraction, followed by gas−
liquid chro matography (GC) employing a nitrogen− phosphorus detector (NPD) and mass …