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Showing 1 to 15 of 15 for “"Flow injection analysis (FIA)"”.
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Flow injection analysis (FIA) determination of lead by hydride generation in banded coral skeletons /
A flow injection hydride generation direct current plasma atomic emission spectrometric (FI-HG-DCP-AES) method was developed for the determination of lead at ng.ml-l level. Potassium ferricyanide (K3Fe(CN)6) was used along with sodium tetrahydroborate(III) (NaBH4) to produce plumbane (PbH4) in an …
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Applications of Bipolar Pulse Conductance to Flowing Streams (Enzymes, Hplc, Immobilized, Fia)
The use of flowing streams, particularly flow injection analysis (FIA), to facilitate analytical measurements has increased significantly in the past several years. Conductance has generally not been used as a detector for flowing streams. Two reasons for this are conductance's lack of selectivity …
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Determination of hydrogen peroxide using immobilized chemiluminescence reagents and flow injection analysis
… the CL determination of hydrogen peroxide using flow injection analysis (FIA) was investigated. Nylon was initially chosen as the immobilization support because of its chemical inertness. Luminol was covalently immobilized on the inside of nylon tubing and used for FIA determination of peroxide …
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Characteristics and applications of the enhanced HRP-catalyzed oxidation of luminol
… luminol has received much attention in chemical analysis. An analytically useful CL system which has also received much attention in recent years is the enhanced horseradish peroxidase (HRP)-catalyzed luminol reaction. Generally, the enhancers are halogenated phenols or aromatic amines. …
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Flow-injection analysis of the platinum-group metals
… arduous laboratory separation methods prior to analysis. An "on-line" method for the rapid assay of the PGMs is indeed a lacking component in the analysts' repertoire of methods. This study describes the development of spectrophotometric methods for the determination of the PGMs using …
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Fourier transform infrared spectrometric detection of chromatographic effluents: instrumental and methodological improvements using a flow cell interface
… untested forms of chromatography using a flow cell interface. These forms of chromatography include High Performance Liquid Chromatography (HPLC), both normal-phase and reversed-phase, and packed-column Supercritical Fluid Chromatography (SFC). Normal phase HPLC-FTIR was demonstrated on …
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Flow Injection Analysis of industrial water samples
An automated version of Flow Injection Analysis (FIA) instrumentation has been designed and evaluated for the quantitative determination of chemical oxygen demand (COD) for industrial samples. The distinct advantages over conventional COD assays are the significantly reduced analysis time (FIA …
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Immunoassays by flow injection analysis.
A home-built flow injection analysis (FIA) system was fully automated using an Apple IIe microcomputer, and subsequently used as a versatile system for the study of immunoassay procedures. The performance of the automated system was monitored by using the turbidimetric detection of barium sulphate …
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Industrial applications of flow injection analysis
Flow injection analysis (FIA) is characterized by its ease of automation, high throughput, simple instrumental requirements, and wide applicability. These unique features make FIA a very useful analytical tool in industrial applications. In this dissertation, FIA systems, operating both in liquid …
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Atomic emission misconceptions as investigated through student interviews and measured by the Flame Test Concept Inventory
… chemistry. This work is presented in Appendix A- Flow injection analysis (FIA) and liquid chromatography (LC) for multifunctional chemical analysis (MCA) systems. The large class sizes of first year chemistry labs makes it challenging to provide students with hands-on access to instrumentation …
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FLOW SYSTEMS FOR CLINICAL ANALYSIS USING IMMOBILIZED ENZYMES AND CHEMILUMINESCENCE DETECTION (CHROMIUM, GLUCOSE)
… analytes. Described in this study are two flow systems based on chemiluminescence (CL) detection that provide the features important in a practical clinical method: a flow injection analysis (FIA) system and a two phase flow system. Both systems take advantage of the specificity of enzyme …
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Development of a detection technique for liquid chromatography and microbore liquid chromatography using tris(2,2'-bipyridyl)ruthenium(II) electrogenerated chemiluminescence
… generated in the electrochemical/optical flow cell used for detection. This technique has proven to be more reproducible and allow better detection limits than pumping externally generated Ru(bpy)$\sb3\sp{3+}$ into the flow cell. Ru(bpy)$\sb3\sp{2+}$ can also be immobilized on an electrode …
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Evaluation of storage strategies and techniques for the hydrochemical analysis of nutrients in Atlantic Ocean coastal water samples
… over a twelve week storage period. Chemical analysis of filtered and non-filtered water samples on the day of collection demonstrated that filtration affected the concentration of nutrients in the samples. In three of the eight filtered seawater samples the filtrate contained a lower …
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The Neuroprotective Effects of Exercise Against Menopause Induced Alterations in Alzheimer’s Disease Neuropathogenesis
… using the Biocrates MxP Quant 500 kit, 3 Flow-Injection-Analysis (FIA-MS) and 2 Ultra-High-Pressure Liquid Chromatography (UPLC). The CVN-AD genotype had significantly lower metabolite levels in comparison to NOS-/- mice and this effect was exacerbated by VCD-treatment. When evaluating the …
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ΑΝΑΠΤΥΞΗ ΑΥΤΟΜΑΤΟΠΟΙΗΜΕΝΩΝ ΜΕΘΟΔΩΝ ΑΝΑΛΥΣΕΩΣ ΜΕ ΤΗΝ ΤΕΧΝΙΚΗ ΕΙΣΑΓΩΓΗΣ ΔΕΙΓΜΑΤΟΣΣΕ ΡΟΗ
AN AUTOMATED FIA ANALYZER WAS ASSEMBLED AT THE ANALYTICAL CHEMISTRY DEPARTMENT OF THE UNIVERSITY OF ATHENS, FROM COMMERCIALLY AVAILABLE PARTS AND ON-LINE WITHA COMPUTER TO CONTROL THE SYSTEM, ELABORATE THE DATA AND FOR THE OPTIMIZATION OF THE PARAMETERS OF THE NEW METHODS USING THE SIMPLEX METHOD. …