Special electrodes detect tiniest amounts

Article Abstract:

Contaminants in solutions, especially heavy metals, can now be accurately measured by new electrolytic technology pioneered by the Defence Research Aency at Holton Heath, and Dr John Dobson at the University of Newcastle. The Anodic Stripping Voltametry technique accumulates small amounts of metal by electrodeposition into mercury cathodes, which are then anodically stripped out. However the new technique eliminates the use of mercury, and all metal is remove when it passes through an ion exchange resin column or other filter.

Metal detectors

---

Tiniest particles make ultimate materials

Article Abstract:

Sol-gel technology is currently being used to develop new materials including improved micro filters, new electronic devices and very strong ceramics. Sol-gel technology groups together a range of technologies which have arisen from projects to produce ceramic nuclear fuel pellets which are more intimately mixed. Materials can be made from more complex mixtures by using sol-gel technology, with composition and doping levels being more strictly controlled. Most of the current projects are aimed at non-nuclear uses.

Electronics, Colloids

---

Bringing ceramics out of the woods

Article Abstract:

Wood is often used as an engineering material but it can lack stiffness and hardness and is susceptible to the weather, fire and biological agents. Wood ceramics are porous carbon materials produced from wood impregnated with phenol resin, before undergoing carbonization in a vacuum. Carbon and carbon composites are already used in brake disks in aircraft and racing cars.

Usage, Wood

Similar abstracts:

• Abstracts: Global warming: Are attitudes changing? The chemistry of life on Mars. Frankenstein foods
• Abstracts: Test and measurement. Logic comes to the rescue. Microelectronic ghost story
• Abstracts: The car: just a Web browser with tires. By-wire cars turn the corner. Winging it
• Abstracts: Guidelines and advice in navigating fair use. Copyright piracy: It's not a small world after all
• Abstracts: Spectral lines: new curricula. Do students really get it? Masters of networking

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.