determination of antioxidants by solid-phase extraction

determination of antioxidants by solid-phase extraction

  • determination of antioxidants by solid-phase extraction method in aqueous food simulants - sciencedirect

    Determination of antioxidants by solid-phase extraction method in aqueous food simulants - ScienceDirect

    15/6/2005 · This method involves solid-phase extraction (SPE) of the antioxidants with silica C 18 cartridge and their determination by liquid chromatography (LC) with diode-array detection. The achieved results in the studies of elution volume determinatio

  • determination of phenolic antioxidants additives in industrial wastewater from polypropylene production using solid phase extraction with high

    Determination of phenolic antioxidants additives in industrial wastewater from polypropylene production using solid phase extraction with high

    6/12/2019 · Determination of phenolic antioxidants additives in industrial wastewater from polypropylene production using solid phase extraction with high-performance liquid chromatography Author links open overlay panel Hernández-Fernandez Joaquin a b c

  • determination of antioxidant flavonoids in sudanese honey samples by solid phase extraction and high performance liquid chromatography

    Determination of Antioxidant Flavonoids in Sudanese Honey Samples by Solid Phase Extraction and High Performance Liquid Chromatography

    Determination of Antioxidant Flavonoids in Sudanese Honey Samples S433 Table 1. The gradient system. The isocratic system The mobile phase was composed of 5% acetic acid in deionized water (solvent A), and methanol HPLC grade (solvent B), at a

  • determination of synthetic and natural antioxidants in cosmetic preparations by solid-phase extraction and subsequent gas and high performance

    Determination of Synthetic and Natural Antioxidants in Cosmetic Preparations by Solid-Phase Extraction and Subsequent Gas and High Performance

    Determination of Synthetic and Natural Antioxidants in Cosmetic Preparations by Solid-Phase Extraction and Subsequent Gas and High Performance Liquid Chromatographic Analysis

  • determination of synthetic phenolic antioxidants and their metabolites in water samples by downscaled solid-phase extraction, silylation and gas

    Determination of synthetic phenolic antioxidants and their metabolites in water samples by downscaled solid-phase extraction, silylation and gas

    Determination of synthetic phenolic antioxidants and their metabolites in water samples by downscaled solid-phase extraction, silylation and gas chromatography-mass spectrometry

  • determination of synthetic phenolic antioxidants and their metabolites in water samples by downscaled solid-phase extraction, silylation and gas

    Determination of synthetic phenolic antioxidants and their metabolites in water samples by downscaled solid-phase extraction, silylation and gas

    Determination of synthetic phenolic antioxidants and their metabolites in water samples by downscaled solid-phase extraction, silylation and gas chromatography-mass spectrometry.

  • determination of beta-lactam antibiotics in milk using micro-flow chemiluminescence system with on-line solid phase extraction

    Determination of beta-lactam antibiotics in milk using micro-flow chemiluminescence system with on-line solid phase extraction

    In this paper, a chemiluminescence (CL) micro-flow system combined with on-line solid phase extraction (SPE) is presented for determination of beta-lactam antibiotics (penicillin, cefradine, cefadroxil, cefalexin) in milk. It is based on the

  • selective determination of sartan drugs in environmental water samples by mixed-mode solid-phase extraction and liquid chromatography tandem mass

    Selective determination of sartan drugs in environmental water samples by mixed-mode solid-phase extraction and liquid chromatography tandem mass

    Solid-phase extraction (SPE) and ultra-performance liquid chromatography (UPLC) tandem mass spectrometry (MS/MS) were employed as concentration and determination techniques, respectively. Different sorbents and elution solvents were tested for

  • magnetic solid phase extraction applied to food analysis

    Magnetic Solid Phase Extraction Applied to Food Analysis

    Magnetic solid phase extraction has been used as pretreatment technique for the analysis of several compounds because of its advantages when it is compared with classic methods. This methodology is based on the use of magnetic solids as

  • method 544. determination of microcystins and nodularin in drinking water by solid phase extraction and liquid chromatography/tandem mass

    METHOD 544. DETERMINATION OF MICROCYSTINS AND NODULARIN IN DRINKING WATER BY SOLID PHASE EXTRACTION AND LIQUID CHROMATOGRAPHY/TANDEM MASS

    Method 544 is an accurate and precise analytical method to determine six microcystins (including MC-LR) and nodularin in drinking water using solid phase extraction and liquid chromatography tandem mass spectrometry (SPE-LC/MS/MS). The advantage

  • determination of fourteen uv filters in bathing water by headspace solid-phase microextraction and gas chromatography-tandem mass spectrometry

    Determination of fourteen UV filters in bathing water by headspace solid-phase microextraction and gas chromatography-tandem mass spectrometry

    A methodology based on solid-phase-microextraction (SPME) followed by gas chromatography-tandem mass spectrometry (GC-MS/MS) has been developed for the simultaneous analysis of 14 UV filters of different chemical nature in water. The extraction

  • determination of sugars in molasses by hplc following solid-phase extraction

    Determination of Sugars in Molasses by HPLC Following Solid-Phase Extraction

    Determination of Sugars in Molasses by HPLC Following Solid-Phase Extraction Wanxia Xu 1, Lei Liang2, and Mingjun Zhu,3 1School of Bioscience and Bioengineering, South China University of Technology, Guangzhou Higher Education Mega Center, Panyu