In a new article, researchers provide an overview of sample preparation techniques and information on routine sample types that may be encountered in forensic toxicology cases. As analytical ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Representative sampling and random sampling ...

As analytical instrumentation (gas- and liquid-chromatographs coupled with mass spectrometers) increase in sensitivity and speed, forensic scientists may find themselves still hindered by the process ...

verybody has a favorite color and season—preferences that seem innate, always defying reason. Auditors are no different when it comes to haphazard sampling, a process in which—ideally—they choose ...

At a side event held on the margins of the 65th IAEA General Conference today, participants gained an insight into how minute traces of uranium and plutonium can be detected by the IAEA. As a powerful ...

Oct. 8, 2008— -- Surveys based on a random sample of respondents are subject to sampling error – a calculation of how closely the results reflect the attitudes ...