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.

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.

Keeping your vacuum pump happy all comes down to regular maintenance.

Problem: Vacuum pumps are laboratory workhorses, providing the conditions needed to run many lab applications. Unfortunately, pumps are also exposed to acid or organic chemical vapors that can cause some real maintenance issues. Particularly with oil-sealed, rotary vane pumps, the exposure of the oil to the chemical vapors can cause the oil to become corrosive, or to break down and no longer serve its vital lubricating function. Regular oil changes are needed to protect the pump.

With its new 875 Karl Fischer Gas Analyzer, Metrohm combines decades of experience in moisture analysis and sample handling.  The KF Gas Analyzer is designed to handle nearly any gas sample - compresses, liquefied or native.  It is fully equipped to measure the absolute moisture content of LPG, petrochemical intermediates, natural gas or other compresses or liquefied gases.

While titration is a basic analytical method, titrators are specialized instruments that perform titrations with minimal operator intervention. They can thus minimize errors, improve throughput, and facilitate documentation. There are two major titrator types: potentiometric acid-based designs and Karl Fischer titrators.

Across research laboratories and industrial manufacturing facilities, many processes must be kept at a specific temperature, and that requires baths and chillers.

Oerlikon Leybold Vacuum, one of the leading global manufacturers of vacuum pumps and systems, signed a contract with a distributor for the Commonwealth of Independent States CIS region. This contract will be the basis for a strategic partnership with Vacuummash, the leading vacuum pump and -systems suppliers in Russia and will facilitate the access to the CIS States.

As FTIR instrumentation has become more compact and reliable, it has experienced a type of commoditization. That does not mean that innovation has ceased.

With an instrument focused on removing matter from a space, the vacuum-pump industry sure creates a lot of “matter,” in terms of different devices. Vacuum pumps come in so many varieties that, well, it’s a regular vacuum-pump jungle out there.

Whether its typical samples are liquids, solids, or gases, nearly every laboratory has an ultraviolet-visible spectrometer that serves as a workhorse for dozens of applications.

The market for high-temperature ovens, operating between around 400ºC and 600ºC, is heating up, says Scott Miller, marketing manager at Carbolite (Watertown, WI).