A fast analysis method with an online sample enrichment technique for the analysis of resin and fatty acids present in papermaking process waters was developed. This method was based on atmospheric pressure chemical ionization (APCI) and mass spectrometry (MS) for the detection of [M-H]ions of compounds of interest. The method was applied to the control of the most prevalent resin (dehydroabiet...

TAYLOR, WELTON I. (Swift and Company, Chicago), AND JOHN H. SILLIKER. Isolation of salmonellae from food samples. IV. Comparison of methods of enrichment. Appl. Microbiol. 9:484-486. 1961. A comparison of various methods of enhancing frequency of Salmonella isolations revealed that inoculation of a second enrichment broth, with culture from the first, wi-as no improvement over the single direct...

State-of-the-art multilingual ontology matchers use machine translation to reduce the problem to the monolingual case. We investigate an alternative, self-contained solution based on semantic matching where labels are parsed by multilingual natural language processing and then matched using a language-independent knowledge base acting as an interlingua. As the method relies on the availability ...

a novel, magnetic silica sorbent with polyelectrolyte multilayers (pems) on its surface was prepared, and was used for magnetic solid phase extraction (mspe) of trace a+ via flame atomic absorption spectrometry (faas). the experimental parameters for the mspe procedure, such as the ph, type, and concentration of eluent, ultrasonic time and effects of co-existing ions were investigated. the dete...

In this study, we present a novel method to isolate and enrich low concentrations of Campylobacter pathogens. This method, Acanthamoeba-Campylobacter coculture (ACC), is based on the intracellular survival and multiplication of Campylobacter species in the free-living protozoan Acanthamoeba polyphaga. Four of the Campylobacter species relevant to humans and livestock, Campylobacter jejuni, C. c...

Cell enrichment is a powerful tool in a variety of cellular studies, especially in applications with low-abundance cell types. In this work, we developed a standing surface acoustic wave (SSAW) based microfluidic device for non-contact, continuous cell enrichment. With a pair of parallel interdigital transducers (IDT) deposited on a piezoelectric substrate, a one-dimensional SSAW field was esta...

This paper describes the results of a set of measurements carried out to assess the state of the practice of relative uranium enrichment measurements by gamma ray spectrometry and to compare a range of approaches by carrying out measurements on a set of uranium samples with known enrichments. Measurements made by a team from Canberra Industries were carried out using two detector/counting chain...

Dangin, Martial, Jean Claude Desport, Pierre Gachon, and Bernard Beaufrère. Rapid and accurate CO2 isotopic measurement in whole blood: comparison with expired gas. Am. J. Physiol. 276 (Endocrinol. Metab. 39): E212–E216, 1999.—Determination of CO2 enrichment on the CO2 released from blood by acid has been used in situations in which breath sampling is difficult. This method can be improved by m...

In this study, the effects of hydrogen and hydroxygen additions and oxygen enrichment on the emission characteristics of a gasoline engine (EF7) were investigated and compared with each other. The simulation was launched by GT-Power at different engine speeds with 5 % to 15 % volume fractions for both of oxygen and hydrogen enrichment and 4.5 % to 9 % volume fractions of hydroxygen addition in ...