Application Notes

The transition metal mercury has many exciting properties; for example, it is the only known metal that is liquid at room temperature, hence its use in thermometers. Other common applications are in ... Read More

Coal-fired utilities have long carried the stigma of being the largest contributor of anthropogenic mercury emissions, which, in 1999, caused the U.S. EPA to initiate the Information Collection ... Read More

Sulfonamides (SAs) are a class of synthetic antimicrobial compounds with a broad spectrum. As shown in Figure 1, they all contain the same chemical structure of an unsubstituted amino on a benzene ... Read More

Methodology is presented for analysis of 13 pain-management drugs using reversed-phase and hydrophilic interaction chromatographic separations. Read More

Research into alternative energy sources is accelerating, with one of the most dynamic areas of interest being the development of devices to harness solar energy. Some industry experts, including the ... Read More

Formaldehyde or formaldehyde-releasing preservatives are frequently used in cosmetic preparations such as shampoos and skin-care products for the prevention of microbial and fungal growth. Many ... Read More

Consumption of asparagus has been known to cause a distinct odor in the urine of humans. This odor can be present in urine in as little as 10-15 min after consumption. The compound that is unique to ... Read More

To study the function of genes and biological pathways, researchers often use techniques such as RNA interference (RNAi) to modify gene expression. In RNAi experiments, it is important to determine ... Read More

Water purity is a fundamentally important factor in many laboratories, yet it is frequently overlooked. Researchers use water in most lab processes, and poor water quality can quickly lead to ... Read More

When setting up a gas distribution system in a laboratory or any other type of facility, the safety of all personnel must be taken into consideration. Read More