ciency (Jack, A. M.; Clark, M. M. "Us- ing PAC-UF To Treat a Low-Quality. Surface Water," /. Am. Water Works As- soc. 1998, 90(11), 83-95). Volatile organics.
determine its effectiveness in deni- trification, disinfection, and pesti- cide and natural organic matter. (NOM) removal. Denitrification oc- curred in a completely ...
Research Watch: Membrane efficiency .... Watch How Flexible Electronic Skin Could Help Humans and Machines Interact. New research published in ACS ...
then calculated the probability den- sity function for unit risk based on rat and human study data using. Bayes' theorem (Hum Ecol Risk sess 1996 2(1) 130-49).
Research Watch: Solvent extraction. Remediation. Environ. Sci. Technol. , 1997, 31 (9), pp 397Aâ397A. DOI: 10.1021/es972443h. Publication Date (Web): June ...
preferable to vague, qualitative fore casts that do not advance the pur poses of ÎÎΡÎ, they conclude. (Envi ron. Prof. 1994, 16, 285-91). BIODEGRADATIOn.
trillion level (1.0â100 pM). However, at the high parts-per-trillion and parts-per-billion levels (100 pM to. 1 µM) .... United Kingdom used sea-level pres- sure data ...
have a large effect in areas with mini- mal marine influences. (J. Geophys. Res. ... smoking habits, living environment, and breastfeeding. The researchers are ...
Atrazine detection at ultratrace levels Determining ultratrace levels of the herbicide atrazine in water poses major difficulties. Antonio DiCorcia and colleagues report on new analytical procedures for atrazine and six metabolites using a new solid-phase extraction (SPE) media (Carbograph 4) and liquid chromatography electrospray mass spectrometry (LCESI/MS). In their procedure, up to 4 L of water are passed through the SPE cartridge which is then back eluted with 6 mL 80:20 v:v methylene chloride/methanol and concentrated. The eluent is analyzed by LC-ESI/MS in the positive-ion mode Results on spiked samples showed recoveries for all seven compounds analyzed at >80% with a relative standard deviation of
