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21 November 2013
In this Issue
Are You Calculating the Lower Limit of Quantification Correctly?
Two methods of calculating the lower limit of quantification (LLOQ) disagree. John Dolan investigates which, if either, is correct. More...
Wyatt Technology
SEC-MALS Detector
Based on Wyatt Technology’s legacy of multi-angle light scattering (MALS) detectors, the DAWN HELEOS-II is the MALS detector with the greatest sensitivity for absolute molecular weight and size determinations of polymers and biopolymers in solution. The DAWN may be connected in series to any chromatographic system in order to determine absolute molar masses without the use of reference standards or column calibration. Learn more
Gulf of Mexico Research Initiative Grant Competition
The Gulf of Mexico Research Initiative (GoMRI) has announced plans to invest up to $105 million between 2015 and 2017 to support research consortia investigating the effect and impacts of hydrocarbon release into the environment. The funding will be awarded to four or more institutions over two years, under the programme known as RFP–IV. GoMRI report that each team will be funded between $1 million and $7.5 million each year. More...
Methamphetamine Analogue Found in Dietary Supplement
Potentially dangerous levels of the methamphetamine analogue, N, α ‑diethyl‑phenylethylamine (N, α -DEPEA), have been detected in a widely available dietary supplement using ultrahigh-pressure liquid chromatography coupled to mass spectrometry (UHPLC–MS). The supplement, Craze, can be bought in the USA and from on-line retailers. The findings have been published in the journal Drug Testing and Analysis by a team of scientists from Harvard Medical School (Massachusetts, USA), NSF International (Missouri, USA), and the National Institute for Public Health and the Environment Health Protection Center (Bilthoven, The Netherlands).1 More...
LCGC eBook
LCGC launches new e-book, Five Keys to Successful GC Methods. Download here.
Current features
Successfully Translating GC Methods from Helium to Hydrogen Carrier Gas
There are many parameters that need to be considered when considering the use of hydrogen as a carrier, however, the benefits to chromatography and money saved make this a worthwhile exercise. In this excerpt from CHROMacademy, we take a look at translating GC methods. More...
CHROMacademy
CHROMacademy LIVE on the web- Fundamentals of High Performance Liquid Chromatography
Live course starts January 9, 2014.  This course introduces the fundamentally important concepts associated with High Performance Liquid Chromatography (HPLC) analysis including hardware basics, modes of analysis, basic troubleshooting, column chemistry, important parameters of the mobile phase such as amount and type of organic solvents, pH, buffer strength and type, and much more. Book your seat now!
SFC 2013: Meeting Review
A review of the 7th International Symposium on Packed Column SFC (SFC 2013) that was held in Boston, Massachusetts, USA, on 10–12 July 2013. More...
Multimedia
Editors’ Series: Fundamentals, Optimization and Practical Aspects of UHPLC: Series 3:  Practical Aspects of UHPLC
Recent Developments in Protein Glycosylation Analysis by HPLC with Charged Aerosol and Mass Spectrometric Detection On Demand Webcast
The CHROMacademy On Demand Essential Guide Webcast: Understanding GC Methods
Need GC Troubleshooting Help?

CHROMacademy announces the launch of the interactive GC Troubleshooter, sponsored by Thermo Scientific.
Building on the success of our ground breaking HPLC Troubleshooter, we are excited to announce the GC version.  In 3 simple steps you will overcome your instrument, separation and quantitation issues. It’s completely free - so if you haven't tried our troubleshooter before you're in for a surprise! Click Here
The Column
The Global E-zine for Separation Scientists
The global edition of The Column is delivered twice monthly with a screen-optimized format designed to improve readability. Covering topical issues, application-based articles, market reports, tips and tricks, opinion pieces and interviews, The Column is a great information resource helping readers achieve better day-to-day working practices.
Read more
 

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