Results 241 to 250 of about 331,537 (286)

Analyte Enrichment Using Sequential-Injection Analysis

Instrumentation Science & Technology, 1997
Abstract Sequential-injection analysis (SIA) was developed as part of the drive to develop methods of automated analysis suitable for robust process analysis. As such, it was envisaged that SIA should provide a means of sample manipulation for the automation of wet chemical procedures in the process environment.
Graham D. Marshall, Jacobus F. van Staden   +1 more
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Microfluidic Sequential Injection Analysis in a Short Capillary

Analytical Chemistry, 2006
An automated microfluidic sequential injection analysis system that efficiently manipulates sample and reagent solutions in the nanoliter range in approximately 10 s per analytical cycle is described. The system consisted of a 6-cm-long, typically 75-microm i.d., fused-silica capillary (which functioned as a sampling probe and reactor as well as a flow-
Wen-Bin, Du, Qun, Fang, Zhao-Lun, Fang
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Application of sequential injection analysis to pharmaceutical analysis

Journal of Pharmaceutical and Biomedical Analysis, 2006
Sequential injection analysis is a well established tool for automation of pharmaceutical analysis. A short historical background of this technique is given as well as a brief discussion on the basic principles and potentials. The current applications of SIA in the pharmaceutical analysis are also described and discussed.
A M, Pimenta, M C B S M, Montenegro, A N, Araújo, J Martínez, Calatayud   +3 more
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Sequential injection spectrophotometric determination of oxybenzone in lipsticks

The Analyst, 2001
A sequential injection (SI) procedure for the spectrophotometric determination of oxybenzone in lipsticks is reported. The colorimetric reaction between nickel and oxybenzone was used. SI parameters such as sample solution volume, reagent solution volume, propulsion flow rate and reaction coil length were studied. The limit of detection was 3 microg ml(
A, Salvador, A, Chisvert, A, Camarasa, M C, Pascual-Martí, J G, March   +4 more
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Children's responses to sequential versus simultaneous immunization injections

Journal of Pediatric Health Care, 1999
The purpose of this study was to compare distress behaviors and perceptions of distress in 4- to 6-year-old children who received two immunization injections simultaneously with those in children who received their immunizations sequentially.This experimental study used a convenience sample of 46 children scheduled for pre-kindergarten examinations ...
M I, Horn, A M, McCarthy
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High-Throughput Sequential Injection Assay Method for Chlorpromazine

Журнал аналитической химии, 2013
This manuscript reports the optimization and validation of a new, rapid, reagent-saving and environmentally-safe method for chlorpromazine assay in pharmaceutical formulations utilizing sequential injection analysis (SIA) technique. Despite its benefits over univariate approach, chemometrics has been rarely exploited for optimizing SIA methods ...
Salih A. Naheid, Abubakr M. Idris, Rafea E. E. Elgorashe, Mohammed A. H. Altayeb, Ahmed O. Alnajjar, Fahad N. Assubaie   +5 more
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Convertible Hydrogel Injection Sequentially Regulates Diabetic Periodontitis

ACS Biomaterials Science & Engineering
Diabetes exacerbates periodontitis by overexpressing reactive oxygen species (ROS), which leads to periodontal bone resorption. Consequently, it is imperative to relieve inflammation and promote alveolar bone regeneration comprehensively for the development of diabetic periodontal treatment strategies.
Jinmin Zhou, Houxuan Li, Shuhong Li, Yuhan Wang, He Wang, Jie Li, Yiyao Hu, Jinlin Song, Jichun Yang, Yang Luo   +9 more
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Flow Behavior of Sandwich Injection Molding in Sequential and Simultaneous Injection

International Polymer Processing, 2003
Abstract The flow behavior of skin and core materials in co-injection molding was investigated to understand the flow patterns that could lead to core breakthrough in sequential and simultaneous injection molding. A spiral-flow mold was used and the core material was loaded with a black master batch to facilitate the monitoring of the ...
D. Watanabe, U. S. Ishiaku, T. Nagaoka, K. Tomari, H. Hamada   +4 more
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Sequential injection technique applied to pharmaceutical analysis

TrAC Trends in Analytical Chemistry, 2004
The versatility of sequential injection analysis (SIA), based on programmable flow, has been recently enhanced by the miniaturization implemented in lab-on-valve (LOV) format. This article discusses the implication of this development and the use of SIA for chromatography and for bead injection, identifying a trend towards development of a versatile ...
P Solich, M Polášek, J Klimundová, J Ruzicka   +3 more
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