Tag: "spectrometer" at biology news

The world's most powerful NMR spectrometer

...ul, high-resolution nuclear magnet resonance (NMR) spectrometer ever constructed was delivered today to The Scripps Research Institute (TSRI). According to Peter Wright, Ph.D., Chairman, Department of Molecular Biology, the new NMR, referred to by the frequency at which it operates, 900 MHz, will become the cent...

Small streams important in controlling nitrogen

... per sample. Peterson and colleagues used new mass spectrometer techniques to improve sensitivity and reduce the cost to less than $10. "Now we have a way to track nitrogen through a stream's biological systems," says Valett. "N15 allowed us to add nitrogen in such small amounts that it does not change the nitrog...

Stowaways from space provide link between impact, biggest extinction in Earth history

...in the Rare Gas Laboratory use a sophisticated gas spectrometer to measure different isotopes of elements like helium, argon, and xenon. The samples cited in the Science paper came from the Permian-Triassic (P/T) boundary in China, Japan, and Hungary. In 1996 Becker, Poreda and colleagues discovered that full...

2000 FALL MEETING: updated press conferences, press registration, and other information

... There is also evidence from Galileo's reflectance spectrometer that Ganymede's surface contains minerals similar to those found on Europa, where they may reflect the composition of a subsurface ocean. Panelists: Robert T. Pappalardo, Senior Research Associate, Department of Geological Sciences, Brown Universi...

Purdue center to lead national research in dietary supplements

...otope laboratory. The PRIME Lab's accelerator mass spectrometer will allow researchers to monitor bone loss in 50 days that otherwise would take two to four years, Weaver said. "For our osteoporosis study, for example, we'll be able to use just nine people and test them for seven different products in two years,"...

UF technique detects tiny, potentially harmful airborne particles

...sample produces a different wavelength of light. A spectrometer records these "fingerprints" and determines which elements are present, providing a real-time picture of the airborne particles. Hahn tested his technique over the Fourth of July holiday, measuring increased airborne concentrations of magnesium, a m...

Tiny sampling device promises big results for detection and analysis of chemicals

...h other micro chemical detectors, including a mass spectrometer or an ion mobility spectrometer. The tiny size will allow chemical testing using small hand-held instruments, eliminating the need to send samples to a large laboratory. This would be beneficial, for example, to a soldier in battle who needs to k...

"Remote control research" a first for the U of L and National Research Council

... NMR experiments on a unique, state-of-the-art NMR spectrometer at NRC's Institute for Biological Sciences in Otta...In real time, he could then control the remote NMR spectrometer and analyze the NMR data to his satisfaction. Siminovitch said the cost of duplicating such a state-...

Brain releases marijuana-like substance in response to pain, study finds

...on Drug Abusefinanced the purchase of the mass spectrometer used in the experiments....

Sandia-developed remote sensor expected to analyze gases up to two miles away

...bout thepossibility of combining a hologram with a spectrometer to remotely analyze gasclouds. Senturia, the MIT professor, was a Sandia consultant at the time. "The infrared spectra of various gases have been known for years," Sinclairsays. "My computer program uses these known spectra to calculate the gratingp...

Unique web site provides live access to laboratory research

...ells, including cancercells, are placed in the NMR spectrometer to measure tumor growth ormetabolism over an exten...ual experiments," Hoffman said. "Bylinking our NMR spectrometer to the Internet, we have put this $300,000instrument on the desk of everyone who needs to access thi...

Quarterly News Tipsheet -- Research Highlights From Pacific Northwest National Laboratory

... and positive ions. No commerciallyavailable mass spectrometer has this feature. The bipolar capability is crucialin state-of-the art mass spectrometry applications, including laser desorptionof aerosol particles for atmospheric monitoring. This trap also improves the quality of data that can be obtained in a s...

Major Clinical Findings By California AIDS Team: HIV Does More Than Kill Off T Cells

...pure populations of circulating T cells and a mass spectrometer to measure thenumber of labeled cells. Because the labeling was carried out in living people, the results serve as thefirst direct clinical evidence of cell production in the human bloodstream. Inthe past, cell generation could not be directly meas...

System Offers Breath Of Relief To Workers

...m by couplingits technology with a commercial mass spectrometer and an exhaled breathanalysis device developed by ...system'smouthpiece for one to two minutes. A mass spectrometer then analyzes the breathsample for volatile organic compounds down to concentrations of less than 10...

ASU Scientists Join NASA Astrobiology Institute

...tor for the MarsGlobal Surveyor's thermal emission spectrometer experiment, a remote sensinginstrument that will identify and map the mineralogy of the Martian surface tohelp identify the best places to search for past or present life. Greeley, who headsGalileo imaging team, has been at the center of evaluating ...

New Ultrasensitive Technique For Accurately Characterizing Biomolecules Is Developed By Cornell Chemists

...which is a sophisticated weighing machine. Using a spectrometer with a 6.1 Tesla superconducting magnet, the Cornell team took a sample representing 1 percent of the protein in a single red blood cell and correctly deduced its molecular weight -- 28,780.6 daltons. The breakthrough in sample reduction came about a...

Dating A Caveman

...easuring their radiation. Previously, even a mass spectrometer was not capable of counting the extremely small amount of U-234 and Th-230 found in samples like the Zhoukoudian material. But by upgrading and calibration of instruments pioneered by scientists at Caltech, Ku and his Caltech colleagues demonstrated ...

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