Technical Articles

There are currently no promulgated U.S. EPA methods for the determination of total nitrogen in ambient water and wastewater. There are approved methods for the determination of inorganic nitrogen (NO3... read more

The poisoning of living things takes two forms, accidental and purposeful, with both resulting in potentially disastrous outcomes. read more

An automated liquid handling system is a valuable labor-saving tool that both increases precision in the laboratory and automates repetitive motion, thus reducing the occurrence of injuries caused by ... read more

Microplate readers find application in a tremendous array of applications and across a wide range of disciplines such as proteomics, chemistry, and drug development. ELISAs, protein–protein ... read more

Forensic laboratories are relied upon to provide science-based evidence for a variety of purposes and stakeholders. Since people’s lives are involved, the reports generated need to be based on the ... read more

One of the most time-consuming and costly tasks in a regulated laboratory is periodic qualification of instruments. For laboratories to improve productivity and reduce costs while also meeting ... read more

Used to maintain constant temperature of samples and heat or cool them, water baths and chillers find wide application in the laboratory. An overview of purchasing considerations is given in this ... read more

The expected growth of molecular techniques over the next 10 years will have a profound impact on clinical decision-making. read more

Important specifications for selecting a laboratory freezer are provided in this article. The laboratory freezers found in life science laboratories boast such features as programmable alarms, auto ... read more

The detection of volatile organic compounds (VOCs) is important for a variety of reasons, many of which stem either from the need to ensure that damaging chemicals are controlled or eliminated, or the... read more