Spectroscopy-05-01-2006

In this article, the authors discuss the basic premises that underlie the science of spectrochemistry, which has been humorously referred to as a "black art" by some.

DigiSEP solid-phase extraction cartridges can reportedly capture, collect, and concentrate certain elements in complex matrices, collect metal ions from acid digestion matrices, separate heavy metals from oil and other organic matrices, collect and retain precious metals, and collect radioactive elements for the nuclear fuel industry. Specific lead and mercury cartridges are available. SCP Science, Champlain, NY; www.scpscience.com

In this month's installment of "Chemometrics in Spectroscopy," the authors explore that vital link between statistics and chemometrics, with an emphasis on the chemometrics side.

Here the authors determine the content of ecdsterone in the Chinese herb Niuxi using near-infrared diffuse reflection spectroscopy and the partial least squares correlation. Compared to existing methods, they contend that their approach is easier, quicker, cheaper, and less environmentally harmful.

While mass spectrometry has long been a high-powered and expensive analytical technique for laboratory, improved technical development, combined with post-9/11 demand for advanced security technologies, is leading to the development of the market for mass spectrometry in security applications.

Emil Ciurczak presents his review of the newest and most interesting products in the field of spectroscopy at the 2006 Pittcon Conference.