http://www.physorg.com/chemistry-news/analytical-chemistry/ en-us PhysOrg.com provides the latest news on analytical chemistry (PhysOrg.com) -- Drinking water can transmit a number of diseases, including typhoid, dysentery, cholera, and diarrhea, which can then spread explosively throughout an entire service area. To avoid this problem, drinking water must be disinfected. After treatment and disinfection, the water is usually safe. http://www.physorg.com/news180767147.html Chemistry - Analytical Chemistry Wed, 23 Dec 2009 05:06:57 EST news180767147 (PhysOrg.com) -- How do individual cells or proteins react to changing pH levels? Researchers at the MESA+ Institute for Nanotechnology at the University of Twente, The Netherlands, have developed a technique for ‘gently` adjusting pH: in other words, without damaging biomolecules. This should soon allow them to measure the activity of a single enzyme as a function of pH. http://www.physorg.com/news180726696.html Chemistry - Analytical Chemistry Tue, 22 Dec 2009 18:20:01 EST news180726696 (PhysOrg.com) -- Water contaminated with mercury is very dangerous for both people and the environment, as mercury is one of the most toxic heavy metals. Though laboratory analyses do deliver precise quantitative measurements, they require expensive equipment, take a long time, and cannot be carried out on-location. http://www.physorg.com/news180680600.html Chemistry - Analytical Chemistry Tue, 22 Dec 2009 05:03:58 EST news180680600 There is more to the snowflake than its ability to delight schoolchildren and snarl traffic. http://www.physorg.com/news179416713.html Chemistry - Analytical Chemistry Mon, 07 Dec 2009 14:26:57 EST news179416713 (PhysOrg.com) -- Antonio Stradivari is the most famous instrument maker of all time. He was especially famous for his violins, which he produced in Cremona from about 1665 until his death in 1737. In particular, the legendary varnish on his instruments has fascinated musicians, violinmakers, historians, and chemists since the beginning of the 19th century -- inciting controversial speculation about "secret" ingredients. The use of analytical processes has allowed a team of scientists from various French and German institutions to shine a light on the mystery. http://www.physorg.com/news179148281.html Chemistry - Analytical Chemistry Fri, 04 Dec 2009 11:25:36 EST news179148281 A team at The Scripps Research Institute has made major strides in solving a problem that has been plaguing chemists for many years: how best to break carbon-hydrogen bonds and then to create new bonds to join molecules together. This problem is of great interest to the pharmaceutical industry, which currently relies on a method to accomplish this feat that is relatively inefficient and sometimes difficult to perform. http://www.physorg.com/news179148095.html Chemistry - Analytical Chemistry Fri, 04 Dec 2009 11:22:20 EST news179148095 (PhysOrg.com) -- A new study using solid-state NMR spectroscopy to analyze intact bone paves the way for atomic-level explorations of how disease and aging affect bone. The research by scientists at the University of Michigan is reported in the Dec. 2 issue of the Journal of the American Chemical Society. http://www.physorg.com/news178994090.html Chemistry - Analytical Chemistry Wed, 02 Dec 2009 17:20:01 EST news178994090 (PhysOrg.com) -- The copper sequestering drug tetrathiomolybdate (TM) has been shown in studies to be effective in the treatment of Wilson disease, a disease caused by an overload of copper, and certain metastatic cancers. That much is known. Very little, however, is known about how the drug works at the molecular level. http://www.physorg.com/news178458552.html Chemistry - Analytical Chemistry Thu, 26 Nov 2009 14:00:03 EST news178458552 IBM scientists have created a one-step point-of-care-diagnostic test, based on an innovative silicon chip, that requires less sample volume, is significantly faster, portable, easy to use, and can test for many diseases, including one of world's leading causes of death, cardiovascular disease*. The results are so quick and accurate that a small sample of a patient's serum or blood, could be tested immediately following a heart attack, to enable the doctor to quickly take a course of action to help the patient survive. http://www.physorg.com/news177880059.html Chemistry - Analytical Chemistry Thu, 19 Nov 2009 19:08:24 EST news177880059 (PhysOrg.com) -- Amid the on-going controversy over the safety of mercury-containing dental fillings, a University of Saskatchewan research team has shed new light on how the chemical forms of mercury at the surface of fillings change over time. http://www.physorg.com/news177184158.html Chemistry - Analytical Chemistry Wed, 11 Nov 2009 17:58:21 EST news177184158 It's no bigger than a stamp packet but it has the potential to allow rapid development of a new generation of drugs and genetic engineering organisms, and to better control in-vitro fertilization. http://www.physorg.com/news176559811.html Chemistry - Analytical Chemistry Wed, 04 Nov 2009 12:24:14 EST news176559811 (PhysOrg.com) -- A team of Harvard chemists led by X. Sunney Xie has developed a new microscopic technique for seeing, in color, molecules with undetectable fluorescence. The room-temperature technique allows researchers to identify previously unseen molecules in living organisms and offers broad applications in biomedical imaging and research. http://www.physorg.com/news175513649.html Chemistry - Analytical Chemistry Fri, 23 Oct 2009 10:48:18 EST news175513649 (PhysOrg.com) -- Mercury, the silvery liquid formerly used in thermometers, is now known to be highly toxic. The worst of the toxins are organic mercury compounds, such as methylmercury. Most previous analytical procedures for the detection of methylmercury were technically difficult and could only be carried out in a laboratory. http://www.physorg.com/news174822407.html Chemistry - Analytical Chemistry Thu, 15 Oct 2009 11:00:03 EST news174822407 (AP) -- Don Ho was right. It is the tiny bubbles. A team of researchers - in Europe not surprisingly - found that Champagne's bursting bubbles not only tickle the nose, they create a mist that wafts the aroma to the drinker. http://www.physorg.com/news173382271.html Chemistry - Analytical Chemistry Mon, 28 Sep 2009 18:44:59 EST news173382271 Flasks, beakers, and hot plates may soon be a thing of the past in medicinal chemistry labs. Instead of handling a few experiments on a benchtop, scientists may simply pop a microchip into a computer and instantly run thousands of chemical reactions, with results -- literally shrinking the lab down to the size of a thumbnail. http://www.physorg.com/news173281486.html Chemistry - Analytical Chemistry Sun, 27 Sep 2009 14:55:55 EST news173281486 (PhysOrg.com) -- In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function. http://www.physorg.com/news173109068.html Chemistry - Analytical Chemistry Fri, 25 Sep 2009 15:10:01 EST news173109068 A research group from the Rovira i Virgili University (URV) in Tarragona, Spain, has developed a biosensor that can immediately detect very low levels of Salmonella typhi, the bacteria that causes typhoid fever. The technique uses carbon nanotubes and synthetic DNA fragments that activate an electric signal when they link up with the pathogen. http://www.physorg.com/news171626999.html Chemistry - Analytical Chemistry Tue, 08 Sep 2009 11:20:01 EST news171626999 Scientists today reported use of a new X-ray imaging technique to reveal for the first time in a century unprecedented details of a painting hidden beneath another painting by famed American illustrator N.C. (Newell Convers) Wyeth. http://www.physorg.com/news169911420.html Chemistry - Analytical Chemistry Wed, 19 Aug 2009 14:37:50 EST news169911420 In an advance toward the first portable device for detecting human bodies buried in disasters and at crime scenes, scientists today report early results from a project to establish the chemical fingerprint of death. Speaking here at the 238th National Meeting of the American Chemical Society (ACS), they said a profile of the chemicals released from decomposing bodies could also lead to a valuable new addition to the forensic toolkit: An electronic device that could determine the time elapsed since death quickly, accurately and onsite. http://www.physorg.com/news169704325.html Chemistry - Analytical Chemistry Mon, 17 Aug 2009 05:40:03 EST news169704325 (PhysOrg.com) -- A team of MIT chemists has devised a new way to add fluorine to a variety of compounds used in many drugs and agricultural chemicals, an advance that could offer more flexibility and potential cost-savings in designing new drugs. http://www.physorg.com/news169391963.html Chemistry - Analytical Chemistry Thu, 13 Aug 2009 14:50:03 EST news169391963 The discovery of an unknown hitherto chemical compound in the atmosphere may help to explain how and when clouds are formed. The discovery of the so called dihydroxyepoxides (an aerosol-precursor), is reported in this week's issue of Science by a team comprising of researchers from the California Institute of Technology (Caltech) and the University of Copenhagen. http://www.physorg.com/news169202056.html Chemistry - Analytical Chemistry Tue, 11 Aug 2009 09:34:47 EST news169202056 (PhysOrg.com) -- Flasks, beakers and hot plates may soon be a thing of the past in chemistry labs. Instead of handling a few experiments on a bench top, scientists may simply pop a microchip into a computer and instantly run thousands of chemical reactions, with results -- literally shrinking the lab down to the size of a thumbnail. http://www.physorg.com/news168522738.html Chemistry - Analytical Chemistry Mon, 03 Aug 2009 12:53:14 EST news168522738 How do you tell when, where and how a Picasso or a Matisse sculpture was cast? Could bronze sculptures have their very own DNA? http://www.physorg.com/news168173804.html Chemistry - Analytical Chemistry Thu, 30 Jul 2009 12:20:13 EST news168173804 (PhysOrg.com) -- Many of the new techniques based on nanotechnology that have been developed for faster and more sensitive detection of pathogens fail in day-to-day clinical use because they require complex sample preparation or measurement equipment, or simply cannot keep up with the large sample throughput in a clinic. Researchers working with Ralph Weissleder at Harvard Medical School have now developed a very simple process for the rapid detection of pathogens that requires no further sample preparation. http://www.physorg.com/news168071819.html Chemistry - Analytical Chemistry Wed, 29 Jul 2009 07:38:22 EST news168071819 By substituting a single atom in a molecule widely used to purify water, researchers at Sandia National Laboratories have created a far more effective decontaminant with a shelf life superior to products currently on the market. http://www.physorg.com/news167406771.html Chemistry - Analytical Chemistry Tue, 21 Jul 2009 15:10:01 EST news167406771 (PhysOrg.com) -- Bacterial diseases are usually detected by first enriching samples, then separating, identifying, and counting the bacteria. This type of procedure usually takes at least two days after arrival of the sample in the laboratory. Tests that work faster, in the field, and without complex sample preparation, whilst being precise and error-free, are thus high on the wish list. http://www.physorg.com/news167289726.html Chemistry - Analytical Chemistry Mon, 20 Jul 2009 06:22:48 EST news167289726 A team of researchers has mapped patterns of illicit drug use across the state of Oregon using a method of sampling municipal wastewater before it is treated. http://www.physorg.com/news166893381.html Chemistry - Analytical Chemistry Wed, 15 Jul 2009 16:28:19 EST news166893381 (PhysOrg.com) -- A portable 'lab on a chip' that can identify target molecules in blood samples has been created by European researchers. It is being used to measure fertility hormones and detect the genes associated with certain types of cancer. http://www.physorg.com/news166856463.html Chemistry - Analytical Chemistry Wed, 15 Jul 2009 06:01:36 EST news166856463 (PhysOrg.com) -- 'Bullet fingerprinting' technology developed at the University of Leicester in collaboration with Northamptonshire Police is now being advanced in new ways. http://www.physorg.com/news166427660.html Chemistry - Analytical Chemistry Sun, 12 Jul 2009 19:30:01 EST news166427660 Scientists in Japan are reporting development of a faster, less expensive version of the fabled polymerase chain reaction (PCR) a DNA test widely used in criminal investigations, disease diagnosis, biological research and other applications. The new method could lead to expanded use of PCR in medicine, the criminal justice system and elsewhere, the researchers say. Their study is scheduled for the July 15 issue of Analytical Chemistry, a semi-monthly journal. http://www.physorg.com/news166267753.html Chemistry - Analytical Chemistry Wed, 08 Jul 2009 10:40:01 EST news166267753