Refractometry is thought to be a limited analytical technique that works best with binary solutions—for example, salt or sugar solutions—where it excels at precise concentration measurements.
Controlling the environment and the operation determines much of the accuracy
For lab manager Mark Lloyd, finding the motivation to come to work every day isn’t difficult. All it takes is an extra-long walk—a routine that started when he was a master’s student working at a shared resource facility at Georgetown University.
In this month’s Tech News section, we highlight exhibitors for two tradeshows—INTERPHEX 2014, which takes place March 18-19 in New York City and the 105th Annual Meeting of the American Association for Cancer Research (AACR), which will be held April 5-9, 2014, in San Diego, California.
Whether to employ central washing stations or point-of-use washers located under a lab bench or in a corner is also something that has to be addressed with regards to laboratory glassware washers. The former provide an economy of scale and are popular with lab workers who, almost universally, hate to “wash the dishes.” The downside for central washing stations is that glassware tends to disappear over time, due to breakage and operator error.
Gas chromatography (GC) is a common technique used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. GC is typically used for separating the different components of a mixture, improving the purity of a particular substance, or identifying a particular compound. GC is a ubiquitous technique, and the various GC instruments available are designed to achieve every requirement of the technique.
Common laboratory ovens maintain temperatures ranging from just above ambient to about 300°C and are ubiquitous in chemistry, biology, pharmaceutical, forensics, and environmental labs. Units operating at temperatures above 300°C are normally dedicated to specialized applications in physics, engineering, electronics, and materials processing. Typical lab ovens use four to six cubic feet of space and are located on benchtops or stacked atop another oven; other units may be much larger.