News tagged with thin layer
Scientists investigate mystery of telephone cord buckles
(PhysOrg.com) -- Ranging in thickness from a few nanometers to several micrometers, thin films and coatings play a role in a wide variety of applications. The reflective metal layer on a mirror, the coatings ...
Mar 27, 2012 |
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Cotton computing goes live at Cornell textiles lab
(PhysOrg.com) -- Researchers from France, Italy and the United States are weaving cotton with transistors for a new look in computing. Based on news about a lab at Cornell University, wearable computing is ...
Technology / Hi Tech & Innovation
Dec 30, 2011 |
4.1 / 5 (10) |
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Group uses controlled cracking for nanofabrication
(Phys.org) -- When creating nanomaterials, cracking is generally considered a problem; it usually means something has gone wrong and the result, as with other material making processes such as glass or ceramics, ...
May 10, 2012 |
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Researchers build transparent, super-stretchy skin-like sensor (w/ video)
Imagine having skin so supple you could stretch it out to more than twice its normal length in any direction - repeatedly - yet it would always snap back completely wrinkle-free when you let go of it. You ...
Oct 24, 2011 |
5 / 5 (4) |
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Controlling silicon evaporation allows scientists to boost graphene quality
Scientists from the Georgia Institute of Technology have for the first time provided details of their "confinement controlled sublimation" technique for growing high-quality layers of epitaxial graphene on ...
Nanotechnology / Nanomaterials
Sep 22, 2011 |
5 / 5 (3) |
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Chemically assembled metamaterials may lead to superlenses
(PhysOrg.com) -- Nanomanufacturing technology has enabled scientists to create metamaterials -- stuff that never existed in nature -- with unusual optical properties. They could lead to "superlenses" able ...
Nov 02, 2011 |
5 / 5 (9) |
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Tuning graphene film so it sheds water
Windshields that shed water so effectively that they don't need wipers. Ship hulls so slippery that they glide through the water more efficiently than ordinary hulls.
Nanotechnology / Nanomaterials
Feb 01, 2011 |
4.9 / 5 (9) |
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'Shish kebab' structure provides improved form of 'buckypaper'
Scientists are reporting development of a new form of buckypaper, which eliminates a major drawback of these sheets of carbon nanotubes -- 50,000 times thinner than a human hair, 10 times lighter than steel, ...
Nanotechnology / Nanomaterials
Feb 08, 2012 |
1 / 5 (1) |
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Scientists Create Nano-Patterned Superconducting Thin Films
(PhysOrg.com) -- A team of scientists from Bar-Ilan University, Israel, and the Brookhaven National Laboratory has fabricated thin films patterned with large arrays of nanowires and loops that are superconducting ...
Jun 14, 2010 |
4.9 / 5 (17) |
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New light on Leonardo Da Vinci's faces
How did Leonardo Da Vinci manage to paint such perfect faces? For the first time a quantitative chemical analysis has been done on seven paintings from the Louvre Museum (including the Mona Lisa) without extracting ...
Chemistry / Analytical Chemistry
Jul 15, 2010 |
4.4 / 5 (14) |
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Researchers discover two early stages of carbon nanotube growth
Boston College researchers have discovered two early-stage phases of carbon nanotube growth during plasma enhanced chemical vapor deposition, finding a disorderly tangle of tube growth that ultimately yields to orderly rows ...
Nanotechnology / Nanomaterials
Oct 03, 2011 |
5 / 5 (2) |
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Duck-billed dinosaurs endured long, dark polar winters
Duck-billed dinosaurs that lived within Arctic latitudes approximately 70 million years ago likely endured long, dark polar winters instead of migrating to more southern latitudes, a recent study by researchers ...
Other Sciences / Archaeology & Fossils
Apr 11, 2012 |
5 / 5 (3) |
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A touch of gold makes glass more see through
(PhysOrg.com) -- Physicists at the King's College London have discovered a means of making glass more transparent - by coating it in a thin layer of gold.
Sep 27, 2011 |
4.9 / 5 (13) |
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Stable electrodes for improving printed electronics
Imagine owning a television with the thickness and weight of a sheet of paper. It will be possible, someday, thanks to the growing industry of printed electronics. The process, which allows manufacturers to ...
Nanotechnology / Nanomaterials
Apr 19, 2012 |
4.4 / 5 (10) |
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Graphene may open the gate to future terahertz technologies
Nestled between radio waves and infrared light is the terahertz (THz) portion of the electromagnetic spectrum. By adding a nanoscale bit of graphene, researchers have found a better way to tune radiation for a THz transmitter.
Sep 12, 2011 |
4.9 / 5 (7) |
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Thin layer chromatography
Thin layer chromatography(TLC) is a chromatography technique used to separate mixtures. Thin layer chromatography is performed on a sheet of glass, plastic, or aluminum foil, which is coated with a thin layer of adsorbent material, usually silica gel, aluminium oxide, or cellulose. This layer of adsorbent is known as the stationary phase.
After the sample has been applied on the plate, a solvent or solvent mixture (known as the mobile phase) is drawn up the plate via capillary action. Because different analytes ascend the TLC plate at different rates, separation is achieved..
Thin layer chromatography finds many applications, including:
A number of enhancements can be made to the original method to automate some steps, to increase the resolution achieved with TLC and to allow more accurate quantitation. This method is referred to as HPTLC, or "high performance TLC".
For more information about Thin layer chromatography, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
