TITLE

A miniaturised isotachophoresis method for magnesium determination

AUTHOR(S)
Prest, Jeff E.; Baldock, Sara J.; Fielden, Peter R.; Goddard, Nicholas J.; Brown, Bernard J. Treves
PUB. DATE
July 2009
SOURCE
Analytical & Bioanalytical Chemistry;Jul2009, Vol. 394 Issue 5, p1299
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The use of malonic acid as a complexing agent has enabled a new method to be devised to allow the determination of magnesium to be made using miniaturised isotachophoresis. Using a leading electrolyte of 10 mmol L−1 caesium hydroxide and 2 mmol L−1 malonic acid at pH 5.1 gave the method a high specificity towards magnesium. Investigations using a poly(methyl methacrylate) chip device with an integrated conductivity detector showed that no interference from calcium, strontium, barium and sodium should occur. The method was found to be linear over the range of magnesium concentrations from 0.625 to 75 mg L−1 and the limit of detection was calculated to be 0.45 mg L−1. Separations were demonstrated with water samples but the procedure should also be applicable to more complex sample matrices such as inorganic explosive residues, blood or urine.
ACCESSION #
41328810

 

Related Articles

  • The Effect of Electrolyte Concentration and Polymer Content on the Rheological Behavior of Magnesium Hydroxide Suspension. Moghimipour, Eskandar; Handali, Somayeh; Salimi, Anayatollah; Masoum, Maryam // British Journal of Medicine & Medical Research;Oct-Dec2013, Vol. 3 Issue 4, p1979 

    Aims: Magnesium hydroxide (Mg (OH)2) is an alkaline compound that is used as an anti-acid and laxative agent. The objective of the study was to find the effect of electrolyte concentration and polymers on the rheological behavior of Mg (OH)2 suspension. Place and Duration of Study: Department of...

  • Circuit lets you test capacitors. Baddi, Raju R. // EDN;2/17/2011, Vol. 56 Issue 4, p55 

    The article describes a circuit that enables the testing of electrolytic capacitors.

  • Development and Evaluation of a Miniaturized Taste Sensor Chip. Tahara, Yusuke; Ikeda, Akihiro; Maehara, Yoshihiro; Habara, Masaaki; Toko, Kiyoshi // Sensors (14248220);2011, Vol. 11 Issue 10, p9878 

    A miniaturized taste sensor chip was designed for use in a portable-type taste sensing system. The fabricated sensor chip (40 mm × 26 mm × 2.2 mm) has multiple taste-sensing sites consisting of a poly(hydroxyethyl methacrylate) hydrogel with KCl as the electrolyte layer for stability of...

  • PRODUCTS for DESIGNERS.  // Portable Design;Jul2003, Vol. 9 Issue 7, p29 

    Presents several products for integrated circuit designers. Microcontroller; Core-voltage controller; Transmissive display; Ambient-light sensor controls.

  • X Initiative solves optical correction for chip wires. Ball, Richard // Electronics Weekly;10/16/2002, Issue 2072, p3 

    Deals with the efforts of the X Initiative organization to promote the use of 45 degrees wires inside chips. Reason for the effort; Use of optical proximity correction (OPC); Characteristics of metal layers on chips; Structure of the OPC line.

  • Diamond platform makes bio-sensor.  // Electronics Weekly;3/12/2003, Issue 2090, p6 

    Focuses on the use of diamond films in making durable bio-sensors. Functions of diamond films.

  • Capacitive Proximity Sensor Provides Accuracy And Speed. Sokolov, Alexander // Electronic Design;11/4/2010, Vol. 58 Issue 15, p76 

    The article focuses on how to set up a capacitive proximity sensor using integrated circuits (IC).

  • Closing In On More Proximity Circuits. Rakes, Charles D. // Poptronics;Feb2001, Vol. 2 Issue 2, p57 

    Instructs on the basic principles of proximity-sensor circuits. Use of a 741 op-amp integrated circuit; Noise-triggered sensors; Load-sensitive proximity-sensor circuit; Resistance-capacitance frequency determinate components.

  • Hall-effect sensor ICs sport magnetic personalities. Travis, Bill // EDN;04/09/98, Vol. 43 Issue 8, p81 

    Focuses on improvements in Hall-effect sensor integrated circuits (ICs). Applications for Hall-effect sensors; Categorization of ICs into various temperature ranges; Description of various methods that have led to improvements in the sensor chips. INSETS: @ a glance;Hall's not the only...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics