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Results 1-10 of 31 (Search time: 0.526 seconds).

  H-1 NMR determination of hypericin and pseudohypericin in complex natural mixtures by the use of strongly deshielded OH groups (Journal article)

  Hyphenated chromatographic techniques for the rapid screening and identification of antioxidants in methanolic extracts of pharmaceutically used plants (Journal article)

  Screening method for organophosphorus insecticides and their metabolites in olive oil samples based on headspace solid-phase microextraction coupled with gas chromatography (Journal article)

  Identification of photocatalytic degradation products of bezafibrate in TiO2 aqueous suspensions by liquid and gas chromatography (Journal article)

  Determination of acrylamide and methacrylamide by normal (Journal article)

  Identification of the major constituents of Hypericum perforatum by LC/SPE/NMR and/or LC/MS (Journal article)

  A systematic study on the stability of selected polymer antioxidants in EU official aqueous and alternative food simulants using HPLC (Journal article)

  Multiresidue method for determination of 35 pesticides in virgin olive oil by using liquid-liquid extraction techniques coupled with solid-phase extraction clean up and gas chromatography with nitrogen phosphorus detection and electron capture detection (Journal article)

  Single-drop microextraction for the analysis of organophosphorous insecticides in water (Journal article)

  Single-drop liquid-phase microextraction for the determination of hypericin, pseudohypericin and hyperforin in biological fluids by high performance liquid chromatography (Journal article)