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For anyone who processes samples in an EPA-regulated laboratory, you know that these methods can be very specific in some spots, and incredibly vague in others.

It is question and answer time and we are starting with TurboVap® evaporators and their use in an environmental lab. The TurboVap® evaporation system by design utilizes a patented gas vortex shearing ...

When working in a contract lab or any analytical testing lab, you may be prone to periods where it seems like there is never going to be a light at the end of the tunnel, as the samples just keep on c...

Have you ever tried a new-to-you technique, only to find yourself frustrated by the lack of results? Frustration that only seems to compound when you search for resources that may help you get started...

Historically, solid phase peptide synthesis has been conducted at room temperature, demanding long reaction times and often double coupling to ensure a quality crude peptide product. More recently how...

UV detection and fractionation is ubiquitous in flash chromatography. It is the default methodology used to detect and collect eluting compounds. Today’s flash chromatography systems offer UV-triggere...

Challenging separations, we all have faced this vexing problem. You synthesized your compound, analyzed it, and know your molecule is in there, based on LC-MS or TLC. Then, you do some method developm...

While resins loaded with the natural 20 amino acids are commercially available these days, there may be times when loading the first amino acid onto the resin in house may be necessary. And unlike loa...

Chemical synthesis of peptides, and even proteins, offers the possibility to expand the functionality and stability imbued by nature. However, chemical synthesis of very long peptides and small protei...

Since its release in 1995, EPA method 525.2 has been one of the most widely used methods for quantifying semi-volatile compounds in drinking water. Chances are, if you work for or own a drinking water...