American Laboratory Volume 45, Number 8 Contents Environmental
Determination of Total Mercury Content in Wood Materials, Part 2: ICP-MS—A Multielement Method by H. Fleischer and K. Thurow .....................................................................................6
The multielement method described here employs ICP-MS to provide sensitive determination of total mercury content in wood.
Life Science
Determining the Quantity, Integrity, and Molecular Weight Range of Genomic DNA Derived From FFPE Samples
by D. McDade Walker ................................................................................................12
Using a minimal amount of starting material, the method described here determines the integrity and concentration of FFPE genomic DNA in one step.
What Is This? Correctly identify this month’s cover image and be entered to win a $10
Amazon gift card (one entry per person; you must be 18 years of age to be eligible. See contest rules at
americanlaboratory.com/contest).
Hint: Its ultrahigh porosity makes it so light it is popular with manufacturers of orthopedic devices and automobiles, yet in music it is known to be heavy. The image on this month’s cover was captured using SEM imaging, original magnification 100×.
Can you guess what it is? Enter by leaving your answer in the comments section of our blog post at
http://goo.gl/GUUKrZ. See the answer to the August cover on page 40.
Chemistry
Rapid Characterization of Large Areas of Graphene Using Raman Spectroscopy
by T. Batten ..............................................................................................................15
A powerful tool is able to efficiently characterize the distribution and size of single-, bi-, and multilayer regions of graphene.
Materials Science
Advancements in Instrumentation for Viscosity Measurements by R.G. McGregor .....................................................................................................18
A host of advanced capabilities are available in the field of viscosity and yield stress measurement.
Environmental
Is Your Gas Delivery System As Green and Safe As It Can Be? by L. Gallagher .........................................................................................................22 Facilities can improve the safety and “green” state of their CO2
systems by evaluating their CO2 requirements. AMERICAN LABORATORY • 2 • SEPTEMBER 2013
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