Navigation Links
New spectrometry standard for handheld chemical detectors aids first responders
Date:10/25/2013

When it comes to detectors for dangerous chemicals, toxins or nefarious germs, smaller and faster is better. But size and speed must still allow for accuracy, especially when measurements by different instruments must give the same result.

The recent publication of a new standarda culmination of years of research at the National Institute of Standards and Technology (NIST)provides confidence that results from handheld chemical detectors can be compared, apples-to-apples.

Such detectors are used by emergency responders to check for the presence of explosives or toxic chemicals that threaten public safety. Quality control managers in the pharmaceutical industry use them to verify the identity of chemicals going into their production lines.

The new standard, published recently by ASTM International, is intended as a guide to correct the output from different handheld Raman spectrometers, so that different instruments produce the same result for the same sample.

Raman spectrometers identify chemicals by shining laser light on a sample and detecting the very small changes in the wavelength of that light as it is re-emitted from the sample. However, spectrometers from different manufacturers can produce signals with different peak intensities. These differences can be confusing, particularly if first responders from different agencies use different instruments and get differing results on an unknown sample in the field.

"Our goal is that people get the same answer for the same sample on any machine," says NIST chemist Steven Choquette.

His team developed a series of NIST Standard Reference Materials (SRMs) that are used to correct Raman systems with differing excitation lasers. These standards enable the correction of the differences in peak intensities reported for the same sample by different Raman spectrometers. They then continued to work with spectrometer manufacturers to develop an industry consensus standar
'/>"/>

Contact: Michael E. Newman
michael.newman@nist.gov
301-975-3025
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Markets for PCR, DNA Microarray, DNA Sequencing, Mass Spectrometry and Flow Cytometry to Exceed $50 billion by 2015
2. Review outlines best practice standards for coordinator-based fracture liaison services
3. Stem cells reach standard for use in drug development
4. Setting the standard for sustainable bioenergy crops
5. New review sets international standards for best practice in fracture liaison services
6. U.S. Army and Vermillion to Assess Health and Economic Benefits of OVA1 as a Standard of Care
7. New emissions standards would fuel shift from coal to natural gas
8. ArcticNet recommends practical solutions to improve standard of living in Canadas north
9. New and revised standards for omega-3s, natural sweeteners and other food ingredients proposed
10. Reducing radiation: Heart Institute model shows hope for new standards worldwide
11. Whitehead scientists identify major flaw in standard approach to global gene expression analysis
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New spectrometry standard for handheld chemical detectors aids first responders
(Date:10/15/2014)... , Oct. 15, 2014 NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market releases photos and ... Times Square on Monday October 13 th . ... David Tunnel and angel investor Mr. Chad A. Verdi ... CEO of NXT-ID thanked his investors and employees "for their work ...
(Date:10/14/2014)... (Oct. 14, 2014)—It,s been millions of years since ... team led by Ohio University scientists is breathing life ... airflow through dinosaur snouts. The research has important implications ... breathe but to enhance the sense of smell and ... animals," said Ohio University doctoral student Jason Bourke, lead ...
(Date:10/14/2014)... CA – October 14, 2014 – Scientists from The ... from the National Institutes of Health (NIH) to lead ... virus-induced hemorrhagic fever disease in Africa. The study aims ... why some patients die, while others survive the inflection. ... understand the basic mechanism of how Lassa fever virus ...
Breaking Biology News(10 mins):Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2
... paper published today in the journal Science, scientists from ... University Hospital in Reykjavik and Uppsala University in Sweden ... (SNPs) in the sequence of the human genome that ... major subtype of glaucoma. The SNPs are located in ...
... -- Many people with long-standing high blood pressure develop ... and colleagues at Washington University School of Medicine in ... out what could explain that difference. , Their latest ... may underlie heart failure in some hypertensive patients. The ...
... if not deadly. While the desire for these substances can ... important role. The etiology of these desires is multifactorial and ... twin studies have shown that the use of these substances ... that ones sex can influence the genetic factors for alcohol ...
Cached Biology News:deCODE discovers cause of major subtype of glaucoma 2High blood pressure, low energy -- a recipe for heart failure 2Does the desire to consume alcohol and tobacco come from our genetic makeup? 2Does the desire to consume alcohol and tobacco come from our genetic makeup? 3
(Date:10/18/2014)... 2014 The Asian arthroscopic devices report ... analysis and forecast of revenue. The arthroscopic devices market ... by 2018, at a CAGR of 6.5% from 2013 ... Asian arthroscopic devices market, to get an idea of ... of the segmentation of arthroscopic devices market in the ...
(Date:10/18/2014)... (PRWEB) October 18, 2014 The Asian Electronic ... market in Asian with analysis and forecast of revenue. The ... to grow to $2,328.0 million by 2018, at a CAGR ... TOC of the Asian Electronic Medical Record (EMR) market, to ... provides a glimpse of the segmentation of the market in ...
(Date:10/18/2014)... 2014 The report " Cloud ... Text; Web; Speech; Machine; Video; Predictive Analytics: Global ... Forecasts & Analysis (2013 - 2018) ", defines ... various sub segments with an in-depth analysis and ... the factors driving this market, various restraints, and ...
(Date:10/17/2014)... WASHINGTON, Oct. 16—As in Alice,s journey through the looking-glass ... behave in surprising and unexpected ways, including a new ... , As reported today in The Optical Society,s (OSA) ... have demonstrated, for the first time, a new type ... and instead reflects infrared light by using an unusual ...
Breaking Biology Technology:The Asian arthroscopic devices market is estimated to grow to $712.3 million by 2018 - New Report by MicroMarket Monitor 2The Asian arthroscopic devices market is estimated to grow to $712.3 million by 2018 - New Report by MicroMarket Monitor 3The Asian arthroscopic devices market is estimated to grow to $712.3 million by 2018 - New Report by MicroMarket Monitor 4The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 2The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 3The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 4The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 5Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 2Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 4Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 5Magnetic mirrors enable new technologies by reflecting light in uncanny ways 2Magnetic mirrors enable new technologies by reflecting light in uncanny ways 3Magnetic mirrors enable new technologies by reflecting light in uncanny ways 4
... OpGen , a company that makes optical tests ... completed the final stage of its $5 million investment ... of Wisconsin-Madison technology, already sells its testing services to ... split between marketing that service and new developments such ...
... Two weeks ago, we wrote about networking and why ... networking circuit more often. We got mail: Thanks for ... , ,Everyone has to network, we argued, or at ... So heres the corollary: Whether youre unemployed, happily employed ...
... the roads and all the highways. Somehow there are those who ... others drive Ferraris orrace tractor-trailers. To each his own. They are ... brings us to two main points, why is 90 percent of ... the technology marketing increasingly poor? Is it because this highway is ...
Cached Biology Technology:OpGen completes $5 million investment round 2Why and how you should befriend a tech recruiter 2Why and how you should befriend a tech recruiter 3Global Internet branding of technology companies 2Global Internet branding of technology companies 3
Ethylene glycol-bis(2-aminoethyl ether)-N,N,N',N'-tetraacetic acid, Molecular Biology Grade...
... have moderate chemiluminescence efficiencies and the chemistry ... have the added benefit that they require ... the background signal. This benefit has been ... immunoassay applications. These compounds can also be ...
Applications: Immunohistochemistry, ISH, FISH, CISH....
... 500 Amplification Kit, 500 reactions. Prepare ... in 4-6 h.Generate microgram quantities of ... starting material.Use amplified DNA directly for ... bacterial or M13 liquid cultures, colonies, ...
Biology Products: