• The instrument is calibrated against purchased nitrate and ammonia standard stock solutions of 1000 mg N/L each, which are combined and then diluted to a working standard of 10 mg N/L each with 1M KCl for analysis of soil extracts and with deionized water for soil leachate samples. (glbrc.org)
  • FIA is an automated method of chemical analysis in which a sample is injected into a flowing carrier solution that mixes with reagents before reaching a detector. (wikipedia.org)
  • The optimisation of the operational and chemical variables of the method such as concentration of reagents, flow-rates, injection volume, etc., involves the use of experimental designs, including Draper�Lin small composite design, scarcely used in analytical chemistry. (ebscohost.com)
  • This work describes two methods for analysis of total proteins and aminoacids using both p-benzoquinone (PBQ) and tetraamin copper (II) reagents. (usp.br)
  • Since 1995, Haswell's group7-10 has reported a series of works on developing micro-FIA systems fabricated on glass substrates using photolithographic and wet etching techniques, employing electroosmosis flow (EOF) both for the mobilization of reagents and for sample injection in the spectrophotometric determination of orthophosphate,7,8 nitrite,9 and nitrate.10 Ramsey's group11 also reported the use of electrokinetic pumping and injection for a chipbased enzymatic assay. (scribd.com)
  • Many types of detector can be used such as: colorimeter fluorimeter ion-selective electrode biosensors An experiment that is used in analytical chemistry lab courses to familiarize students with FIA is the determination of phosphate by flow injection analysis. (wikipedia.org)
  • A thin-layer flow cell equipped with a BDD electrode was used as an amperometric detector, and experiments were carried out at -0.7 V (vs. Ag/AgCl). (nii.ac.jp)
  • We found out that the most suitable FIA-ED conditions were as follows: working electrode potential of 900 mV, Britton-Robinson buffer (pH 4.5) as the mobile phase, its flow rate 1 ml min(-1). (utb.cz)
  • The most promising one is a flow-based system that increases the sample throughput while maintaining the reproducibility and repeatability of the method. (go.jp)
  • This communication describes a new design for a paper-based electrochemical system for flow-injection analysis. (biomedsearch.com)
  • We aimed to develop a rapid and sensitive method to analyze the radioactivity of 90 Sr by combining multiple techniques, including online solid-phase extraction (SPE) and inductively coupled plasma mass spectrometry (ICP-MS). An automatic analytical system was designed to execute the proposed process from sample injection to measurement. (springer.com)
  • In this chapter, we introduce a rapid method conducted in a fully automated analysis system for 90 Sr analysis using inductively coupled plasma mass spectrometry (ICP-MS) and online solid-phase extraction (online SPE) with a flow-injection system (Takagai et al. (springer.com)
  • An automated flow injection potentiometric (FIP) system with electronic tongue detection (ET) is used for the monitoring of biosorption processes of heavy metals on vegetable wastes. (upc.edu)
  • The real-time monitoring of both the Cu2+ and the cation exchanged and released (Ca2+) in the effluent solution is performed by using flow-injection potentiometric electronic tongue system. (upc.edu)
  • The coupling of the electronic tongue with automation features of the flow-injection system allows us to accurately characterize the Cu2+ ion-biosorption process, through obtaining its breakthrough curves, and the profile of the Ca2+ ion release. (upc.edu)
  • The chemiluminescent emission is detected in a flow injection analysis (FIA) system, employing micellar medium as carrier, whereas the derivatisation reaction is carried out off-line using fluorescamine as a label. (ebscohost.com)
  • A sensitive chemiluminescence method based on enhancing the effect of cefetamet pivoxil on the chemiluminescent reaction between luminol and dissolved oxygen in a flow injection system was proposed for the determination of cefetamet pivoxil. (ebscohost.com)
  • This paper reports the photoinduced chemiluminescence (PCL) of a methyl cypridina luciferin analogue (MCLA) in a flow injection system using phthalocyanine derivatives as photosensitizers. (ebscohost.com)
  • Further information about the analysis system can be obtained from Lachat Instruments (5600 Lindburgh Drive, Loveland CO 80539 or http://www.lachatinstruments.com). (glbrc.org)
  • The experimental study was carried out in a single cylinder compression ignition engine equipped with a common-rail injection system and an exhaust gas recirculation system. (sae.org)
  • An existing pass by noise data acquisition system was upgraded to provide the sophisticated data analysis techniques and test site efficiency required to comply with the current and future drive by noise regulations. (sae.org)
  • Features of the new system include data telemetry, frequency analysis, portability and efficient data management through the use of advanced data acquisition system. (sae.org)
  • The Syringe Injection System is intended for use with IVIS Lumina Series III, Lumina XRMS, Lumina K and IVIS SpectrumCT systems that have been equipped with a syringe injection port. (saanl.com)
  • The FIAS is a fully integrated and automated flow injection mercury/hydride analysis system that provides new levels of automation and sample handling for AA, ICP and ICP-MS, dramatically increasing laboratory productivity and capability. (saanl.com)
  • This syringe injection system enables users to image while simultaneously inject compounds into mice. (saanl.com)
  • Tim Flow Injection Mercury System (FIMS) is a dedicated system that integrates flow injection mercury cold vapor generation with a very sensitive detector. (environmental-expert.com)
  • Simple and fast photometric flow injection analysis system was developed for sensing of β-1,3-glucan from medicinal mushroom Ganoderma lucidum during fermentation. (nih.gov)
  • The bead packed mini-columns were then used to assemble a flow injection analysis (FIA) system for the detection of β-(1→3)-d-glucan biomarker or glucose. (nih.gov)
  • ABSTRACT As a cost-saving measure, the use of an existing microwave digestion system and ICP/MS instrument was investigated for the analysis of mercury in domestic wastewater, industry effluent, storm water, and other aqueous matrices analyzed under the City of Portland's various NPDES permits. (environmental-expert.com)
  • One embodiment of such a delivery system is an electro-osmotically driven gradient flow delivery system that generates dynamic gradient flows with sub-μL/min flow rates by merging a plurality of electro-osmotic flows. (freepatentsonline.com)
  • 4. The system of claim 3, wherein each variable high voltage power supplies produces a voltage potential sufficient to generate an electroosmotically driven flow through each delivery arm and into said receiving means. (freepatentsonline.com)
  • With the p-benzoquinone reagent the method was performed by an original flow system made with stainless steel capillary tubing, conveniently heated into a glycerin bath, where the reactional mixture travels in its way to the detector. (usp.br)
  • The second method, using the tetraamin copper (II) reagent, was performed by a common flow injection system (FIA). (usp.br)
  • Inspired on flow injection analysis (FIA) systems, this study introduces a microfluidic platform fitted with an on-chip active microfluidic mixing strategy which uses surface acoustic waves (SAWs) to enhance the micro-analytical sensitivity of chemiluminescent species in a continuous flow system. (selectbiosciences.com)
  • In this work, a simple, robust, and automated microfluidic chip-based FIA system with gravity-driven flows and liquid-core waveguide (LCW) spectrometric detection was developed. (scribd.com)
  • The electrochemical oxidation of chlorhexidine is studied for the first time and its amperometric determination using a flow-injection analysis system is demonstrated. (sbq.org.br)
  • Determination of trace leads by using a chelating resin packed minicolumn in flow injection-preconcentration-flame atomic absorption spectrophotometric system has been done. (scribd.com)
  • In addition, the nitrogen supplied as urea may be transferred to the atmosphere through ammonia volatilisation or carried with soil and surface water (including leaching to subsoils via vertical drainage or transported within lateral overland and subsurface flows). (thefreelibrary.com)
  • The first overall accepted flow analyzer was based on the concept of Air-Segmented Continuous Flow Analysis (Skeggs 1957) and played a relevant role in the field of automated analysis especially in relation to large-scale clinical assays. (scielo.br)
  • in chipbased capillary electrophoresis (CE),5 this form of µTAS has achieved tremendous progress.6 While the use of electrokinetic means for sample introduction and injection in chip-based CE is now well-established, and stays almost unchallenged, the most suitable drive for other chip-based analytical systems still remains a topic of investigation. (scribd.com)
  • This review focuses on electrochemical detection methods including amperometry, pulse amperometry, voltammetry, potentiometry, and miscellaneous detections for flow-based systems. (go.jp)
  • The results obtained show the convincing possibilities of using ofthese methods in analysis of plant secondary metabolites. (mdpi.com)
  • The analytical utility of this new technique to the improvement of previous analytical methods as well as to the development of new procedures employing flow injection analysis is demonstrated. (openarchives.gr)
  • Such analytical techniques include electron paramagnetic resonance (EPR) and infrared (IR) spectroscopy, electrochemical, and chemometric methods, flow injection analysis (FIA), optical sensors, and high resolution screening (HRS). (frontiersin.org)
  • The aim of this work was to investigate the basic electrochemical behaviour of lactoferrin by both stationary and flow electrochemical methods with respect its structural changes under various denaturing conditions. (utb.cz)
  • Rather, the intention is to identify well-established methods that are used as the standard methods of analysis. (cdc.gov)
  • So, Solara] and two types of transgenic lines (SST and SST/FFT) analyzed by different multivariate data analysis methods. (pnas.org)
  • The recent trends in the development of environmental analysis are reviewed with emphasis on the progress of extraction techniques, of methods of analysis of pesticide residues in food, of the search for chemical and biological agents released into the environment, and of analytical instrumentation. (chemweb.com)
  • In the interactive, PC-assisted diagnosis of data, models and estimation methods, the examination of data quality involves the detection of influential points , outliers and high-leverages, which cause many problems in regression analysis. (chemweb.com)
  • This fine technology brings more sensitive, specific, and reliable methods than the previous biochemical ones for the analysis of urinary glycosaminoglycans, oligosaccharides, and sialic acid. (springer.com)
  • 2004). Analytical methods that allow quantification of nitrogenous chemical species significant to soil and related matrices should form important tools for future investigation and enhanced understanding of these processes, in this paper, we review the determination of urea in soil and fertiliser samples, with a focus on the relatively recent adoption of flow-injection and microplate procedures that allow low-cost, high-throughput analyses. (thefreelibrary.com)
  • the interference from polyatomic ions and isobars was removed by an oxidation, and the extraction and recovery ratio of solid phase were measured by split-flow injection with internal standard correction during the transient signal measurement. (springer.com)
  • The method is based on the modification of the oxidation chemistry of pyrogallol upon contact with a flow stream consisting of an organic solvent in mixture with an aqueous solution of a soft oxidant. (openarchives.gr)
  • Ignition, combustion and emissions characteristics of dual-component fuel spray were examined for ranges of injection timing and intake-air oxygen concentration. (sae.org)
  • The results demonstrated that the increase of the i-octane mass fraction with optimizations of injection timing and intake oxygen concentration reduced pressure rise rate and soot and NOx emissions without deterioration of indicated thermal efficiency. (sae.org)
  • A ) Visualization of the concept of metabolite concentration out-of-range assessment in substantial equivalence analysis. (pnas.org)
  • The analysis time of this FIA was approximately 40s, which is faster than the previously reported glucan sensors. (nih.gov)
  • A peristaltic pump is the most commonly used pump in FIA instruments but new variants of FIA technique use computer controlled syringe pumps that generate discontinuous flow precisely choreographed to the needs of assay protocol. (wikipedia.org)
  • The mouse assay was also used in a pilot study on PSP toxins in freeze-dried mussels, organized by the Food Analysis Performance Assessment Scheme (FAPAS ® ) in 2003 (Earnshaw, 2003). (fao.org)
  • He also edited Handbook of Water Analysis (first, second, and third editions) and Chromatographic Analysis of the Environment , 3rd edition (CRC Press). (abebooks.it)
  • Furthermore, the application of the proposed method in combination with liquid chromatographic analysis is also presented. (openarchives.gr)
  • Flow injection analysis techniques for atomic-absorption spectrometry. (wikipedia.org)