Companies conducting compliance testing are required to analyze audit samples at the time they collect and analyze the stack samples if audit samples are available. Eastern Research Group (ERG) provides technical support to the EPA's Emission Measurements Center's Stationary Source Audit Program (SSAP) for developing, preparing, and distributing performance evaluation samples and audit materials. These audit samples are requested via the regulatory Agency and include spiked audit materials for EPA Method 29-Metals Emissions from Stationary Sources, as well as other methods.
View Article and Find Full Text PDFThermospray high-performance liquid chromatography-mass spectrometry was used to confirm the identity of five bulk anticancer drugs, and in some cases, to identify drug impurities. Analysis resulted in both molecular weight and structural (fragment ions) information obtained from the full scan spectra of as little as 50 ng of each drug. The technique was also used to evaluate the chromatographic specificity of corresponding ultraviolet or refractive index high-performance liquid chromatographic detection in the presence of drug degradation products.
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