... fluorigenic reagents high-performance liquid chromatography HPLC—fluorescence detection spectrophotofluorometry—determination of thiols thiols thiol analysis Willy R. G. Baeyens, 1Kazuhiro Imai, 2 and Betty Lin Ling 3 Chromatographic Determinationof Thiols Through Selective Fluorescence Derivatization...

... of HDI sampling, along with tests to define the stability of 1-(2-pyridyl) piperazine [1-(2-P)P] impregnated filters, and the effect of increased reagent loading. Since the method employs 1-(2-P)P in excess to form the HDI-urea derivative that is then analyzed by high-performance liquid chromatography...

... High-performance liquid chromatography (HPLC) is a powerful analytical tool which has application to flexible packaging materials. The technique can be used for qualitative and quantitative evaluation of material components and processing variations and for physical characterization. Speed...

... is a question not only of analytical recovery but also of whether significant biologically active conversion products are produced. Analytical methods to study the extraction efficiency for BaP from diesel particulates are presented. High-performance liquid chromatography (HPLC), high-resolution mass...

... been investigated. EPA priority pollutants refinery effluents polynuclear aromatics high-performance liquid chromatography variable wavelength detector 14 C radioactive tracer reverse phase preconcentration H. G. Preston^ and A. Macaluso^ Determination of Polynuclear Aromatic...

..., phenols in hexane, and N-heterocyclic compounds in hexane. Each of these materials contained between five and eight pure compounds, each compound present at the 1 to 100 μg/ml (ppm) level. alternate fuels gas chromatography high-performance liquid chromatography N-heterocyclic compounds phenols...