Modern analytical methods in connection with organic synthesis

Naphthenic acids (NAs) are compounds naturally present in most petroleum sources comprised of complex mixtures with a highly variable composition depending on their origin. Their occurrence in crude oil can cause severe corrosion problems and catalysts deactivation, decreasing oil quality and consequently impacting its productivity and economic value. NAs structures also allow them to behave as surfactants, causing the formation and stabilization of emulsions. In face of the ongoing challenge of treatment of water-in-oil (W/O) or oil-in-water (O/W) emulsions in the oil and gas industry, it is important to understand how NAs act in emulsified systems and which acids are present in the interface. Considering that, this review describes the properties of NAs, their role in the formation and stability of oil emulsions, and the modern analytical methods used for the qualitative analysis of such acids.

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Science of Art and Analysis: A Mixture for Undergraduate Non-Specialists

MRS Proceedings ◽

10.1557/proc-267-1089 ◽

1992 ◽

Vol 267 ◽

Author(s):

W. Stanley Taft ◽

James W. Mayer

Keyword(s):

Physical Properties ◽

Computer Science ◽

Undergraduate Students ◽

Analytical Methods ◽

Art History ◽

Analytical Techniques ◽

Cornell University ◽

The Third ◽

Works Of Art ◽

Modern Analytical

ABSTRACTAt Cornell University we are in the third year of teaching an interdisciplinary, undergraduate course on the physical properties and structures of works of Art, and the modern analytical methods used to investigate them: Art, Isotopes, and Analysis. The challenge is to explain concepts familiar to museum scientists and conservators to a group of 150 undergraduate students with a background that ranges from Art History to Computer Science. Painting techniques (Fresco, Tempera, Oil, etc.) are demonstrated to the class. The analytical techniques involve the interactions of electrons, photons, ions and neutrons with pigments and other materials. This instructional approach serves as an introduction to published analyses of works of art.

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High-Performance Liquid Chromatography versus Other Modern Analytical Methods for Determination of Pesticides

High Performance Liquid Chromatography in Pesticide Residue Analysis - Chromatographic Science Series ◽

10.1201/b18481-24 ◽

2015 ◽

pp. 491-530 ◽

Cited By ~ 3

Author(s):

Tomasz Tuzimski ◽

Joseph Sherma

Keyword(s):

High Performance Liquid Chromatography ◽

Liquid Chromatography ◽

Analytical Methods ◽

High Performance ◽

Modern Analytical

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2 Fundamental Principles of Organic Electrochemistry

10.1055/sos-sd-236-00002 ◽

2022 ◽

Author(s):

A. Scheremetjew ◽

T. H. Meyer ◽

Z. Lin ◽

L. Massignan

Keyword(s):

Mass Transfer ◽

Organic Synthesis ◽

Analytical Methods ◽

Organic Electrochemistry ◽

General Setup

This chapter addresses the basic terminology of electrochemistry and its fundamental mechanisms of electron and mass transfer. The general setup and most important analytical methods are introduced to provide the reader with the theoretical prerequisites for the implementation of electrochemical transformations into organic synthesis.

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Production and Examination of Colour-Galvanized Steel Test Sheets by Modern Analytical Methods

Materials Science Forum ◽

10.4028/www.scientific.net/msf.729.61 ◽

2012 ◽

Vol 729 ◽

pp. 61-67 ◽

Cited By ~ 1

Author(s):

Gábor Lévai ◽

Melinda Godzsák ◽

Alfred Ender ◽

Róbert Márkus ◽

Tamas I. Török

Keyword(s):

Intermetallic Compound ◽

Analytical Methods ◽

Galvanized Steel ◽

Strong Impact ◽

Molten Zinc ◽

The Impact ◽

Modern Analytical

Nowadays the most commonly used baths for hot-dip galvanizing are the ones which contain about 0.1 ... 0.2% of aluminium. Besides aluminium, the effects of the addition of small quantities of titanium (up to 0.0005%) to the bath have recently been studied in detail by Culcasi et al. [2]. They proved the strong impact of adding a small amount of titanium on the development of the iron-zinc layer, which influences primarily the building up of the intermetallic compound film Fe2Al5 on the surface of the steel piece in contact with the molten zinc. This aluminium-alloyed hot-dip bath with titanium usually does not form a nicely coloured surface [. Therefore, our experiments were limited to test only the effect of adding titanium to the molten zinc which contains only traces of aluminium in order to study the impact of titanium on surface colouring using GD-OES spectrometry.

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