Application Notes

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Single-Step Purification of Lactase From a New Isolate of L. acidophilus
Wednesday, February 01, 2006
Sameer K. Akolkar Smita S. Lele
Lactase (ß-D-galactohydrolase EC 3.2.1.23) is widely distributed in microorganisms, plants, and animals. Read More
Single-Cell RNA Detection to Identify Cell Subpopulations in Heterogeneous Mixtures
Tuesday, March 25, 2014
Don Weldon Victor Koong Alex Ko Yuko Williams Laura White
Traditional RNA detection methods, which analyze RNA levels in lysed, permeabilized, or fixed cell samples, make it challenging to understand the role of one gene in the context of a tissue, organ, or... Read More
Simultaneous Crystallization Testing in a Laboratory Furnace
Thursday, June 16, 2011
Branislav Cabric Nebojsa Danilovic Aco Janicijevic
A previous paper described a model of an air-cooled test tube with a series of sockets and plugs (crystallization socket-outlet adaptor) installed in a laboratory chamber furnace, the goal of which ... Read More
Simple, Environmentally Friendly Mercury Analysis by U.S. EPA Method 1631
Thursday, March 10, 2011
Jason Gray
Mercury analysis, according to U.S. EPA Method 1631E, focuses on the monitoring of waste effluents at the lowest U.S. EPA Water Quality Certification (WQC) levels. Read More
Simple Cell Imaging for Complex Research
Monday, September 21, 2015
Veronika Kortisova Descamps
The average rat brain is about the size of a pea and is divided into more than a dozen functional structures. Read More
SEMs Provide Deep Insight Into Materials
Wednesday, February 10, 2016
Donna Guarrera
Modern scanning electron microscopes (SEMs) offer vast improvements over early models in terms of electron optics, detector design and computing technology. Read More
Selecting Gas Delivery Systems for Safety, Performance, and Cost-Efficiency in the Laboratory
Friday, August 03, 2012
Larry Gallagher
In almost any laboratory or research and scientific facility, there are numerous devices, instruments, or processes that require gases to run the instrumentation or process or to calibrate the ... Read More
Selecting Centrifuge Consumables
Friday, April 17, 2009
Tammy Goodman
Selecting a centrifuge and rotor can sometimes feel like the easy part when faced with choosing the consumables in which to centrifuge samples. There are many suppliers of centrifuge tubes to choose ... Read More
Selecting a LIMS for the Cannabis Industry
Tuesday, November 27, 2018
Christine Paszko
In addition to handling the infrastructure controls, LIMS manages SOPs, methods, metrology data, permissions, privileges, regulatory requirements, web access, and many other operational procedures ... Read More
Selecting a GC Inlet Liner
Tuesday, July 26, 2016
Linx Waclaski
Introduction of gas chromatography samples typically occurs through a heated inlet containing a glass liner. Read More
Seeing Molecular Interactions of Large Complexes by Cryo Electron Microscopy at Atomic Resolution
Thursday, February 06, 2014
Laurie J. Wang Z.H. Zhou
Suppose one has never seen an automobile and is asked to perform the simple task—while blindfolded—of adding gasoline to the car and checking its oil. A task like this is impossible to perform until ... Read More
Sediment Standard Reference Materials
Saturday, August 01, 2009
Michele Schantz Rolf Zeisler
The National Institute of Standards and Technology (NIST, Gaithersburg, MD) issued a new series of Standard Reference Materials® (SRMs) targeting the ever-increasing list of potentially toxic ... Read More
Securing the Energy Future: Work Flow Solutions for Biodiesel Quality Control
Monday, May 23, 2011
Paul Wheeler
The global energy crisis is starting to have a significant impact on the world economic climate. Read More
Second-Generation Expanded Bed Adsorption Scales from Lab to Plant
Thursday, January 17, 2013
Robert L. Stevenson, Ph.D.
Expanded bed adsorption (EBA) was introduced in 1999 with adsorbents that were used for pressure-driven packed beds. These had densities in the range of 1.1–1.5 g/mL, which was not much higher than ... Read More
Screening Live Cells Using RNA Detection Probes
Friday, June 12, 2015
Don Weldon Harald Lahm
RNA expression is the next frontier in biomarker development because it offers an indication of cellular intent. mRNA expression, in particular, can show how a cell responds to its environment or ... Read More
Scalable Synthesis Technology
Wednesday, June 07, 2017
Philipp Wenter
A DNA synthesis platform addresses the need for smaller-scale oligo production without sacrificing quality, accuracy or turnaround time. Read More
Saving Money on TOC Analyzer Gas Costs
Friday, September 01, 2006
Jennifer Triplett
Total organic carbon analyzers are increasingly popular as an accurate and inexpensive way to test for inorganic and organic carbon contamination in water samples. Read More
Sample Processing at Pittcon® 2014
Tuesday, May 06, 2014
Robert L. Stevenson, Ph.D.
The tenfold increase in speed for the analytics (GC, HPLC, and SFC [supercritical fluid chromatography], all with MS) over the last decade has shifted the choke point in many workflows from analytics ... Read More
Sample Preparation for the Detection of Synthetic Analogs of Insulin in Human Serum
Saturday, March 01, 2008
Catrin Goebel
The detection of the abuse of synthetic insulins by doping laboratories is likely to become a routine requirement. Read More
Sample Preparation for Liquid Chromatography-Mass Spectrometry
Tuesday, January 10, 2012
Robert L. Stevenson, Ph.D.
Sample preparation is the most critical part of a chromatographic assay. Read More