Results 1 to 10 of about 312,413 (279)

A análise por injeção sequencial (SIA): vinte anos em uma perspectiva brasileira [PDF]

open access: yesQuímica Nova, 2010
The year of 2010 marks the 20th anniversary of the development of Sequential Injection Analysis (SIA) by Ruzicka and Marshall. Considered the second generation of the flow injection methods, this article briefly describes the history, the basic ...
Allan Cezar Vieira dos Santos   +1 more
doaj   +4 more sources

Sequential Injection Analysis for Automation and Evaluation of Drug Liberation Profiles: Clotrimazole Liberation Monitoring [PDF]

open access: yesMolecules, 2021
A fully automated sequential injection system was tested in terms of its application in liberation testing, and capabilities and limitations were discussed for clotrimazole liberation from three semisolid formulations.
Hana Sklenářová   +4 more
doaj   +2 more sources

Development of an In Situ Analyzer Based on Sequential Injection Analysis and Liquid Waveguide Capillary Flow Cell for the Determination of Dissolved Reactive Phosphorus in Natural Waters [PDF]

open access: yesSensors, 2020
This study presents an innovative technique for the in situ analysis of aquatic biochemical elements detected through wet chemical processes. A new compact in situ phosphate analyzer based on sequential injection analysis, liquid waveguide capillary flow
Zeming Yang   +5 more
doaj   +2 more sources

Screening of conditions controlling spectrophotometric sequential injection analysis [PDF]

open access: yesChemistry Central Journal, 2011
Background Despite its potential benefits over univariate, chemometrics is rarely utilized for optimizing sequential injection analysis (SIA) methods. Specifically, in previous vis-spectrophotometric SIA methods, chemometrically optimized conditions were
Idris Abubakr M
doaj   +3 more sources

Sequential Injection Analysis Method for the Determination of Glutathione in Pharmaceuticals [PDF]

open access: yesSensors
A sequential injection analysis method for the determination of glutathione (GSH) in pharmaceuticals has been developed. It is based on the reduction of the Cu(II)-neocuproine complex by GSH and the formation of an orange-yellow colored Cu(I)-neocuproine
Maja Biocic   +4 more
doaj   +2 more sources

Automatic On-Line Purge-and-Trap Sequential Injection Analysis for Trace Ammonium Determination in Untreated Estuarine and Seawater Samples [PDF]

open access: yesMolecules, 2020
An innovative automatic purge-and-trap (P&T) system coupled with fluorimetric sequential injection (SI), for the on-line separation and preconcentration of volatile compounds, is presented.
Athina Dimitriadou, Aristidis Anthemidis
doaj   +2 more sources

Development of a Sequential Injection Analysis System for the Determination of Saccharin [PDF]

open access: yesSensors, 2017
Saccharin is a powerfully sweet nonnutritive sweetener that has been approved for food-processing applications within the range of 100–1200 mg/kg.
Budi Wibowotomo   +2 more
doaj   +2 more sources

Determination of N-Acetyl-L-cysteine Ethyl Ester (NACET) by Sequential Injection Analysis [PDF]

open access: yesSensors
New sequential injection analysis (SIA) methods with optical sensing for the determination of N-acetyl-L-cysteine ethyl ester (NACET) have been developed and optimized. NACET is a potential drug and antioxidant with advantageous pharmacokinetics.
Lea Kukoc-Modun   +4 more
doaj   +2 more sources

Amperometric Biosensor for Oxalate Determination in Urine Using Sequential Injection Analysis [PDF]

open access: yesMolecules, 2012
An amperometric flow biosensor for oxalate determination in urine samples after enzymatic reaction with oxalate oxidase immobilized on a modified magnetic solid is described.
Enrique Barrado   +4 more
doaj   +2 more sources

Sequential Injection Analysis of Cholesterol Using an Oxidation–Reduction Electrode Detector [PDF]

open access: yesSensors
A new automated method for the determination of cholesterol in serum was developed by combining sequential injection analysis (SIA) with potentiometric detection using a gold oxidation–reduction potential (ORP) electrode because serum cholesterol is an ...
Takato Imanaka, Takashi Masadome
doaj   +2 more sources

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