Results 11 to 20 of about 454,439 (293)

(r,r)-disynephrine ether bis(hydrogen sulfate) [PDF]

open access: yes, 2009
The asymmetric unit of the title compound [systematic name: (R, R)-2,4-bis(4-hydroxyphenyl)-N,N'-dimethyl-3-oxapentane-1,5- diammonium bis(hydrogen sulfate)], C18H26N2O32+center dot-2HSO(4)(-), contains one half-cation and one hydrogen sulfate anion. The
Arbuckle, William   +8 more
core   +4 more sources

Determination of atmospheric organosulfates using HILIC chromatography with MS detection [PDF]

open access: yesAtmospheric Measurement Techniques, 2015
Measurements of organosulfates in ambient aerosols provide insight to the extent of secondary organic aerosol (SOA) formation from mixtures of biogenic gases and anthropogenic pollutants.
A. P. S. Hettiyadura   +6 more
doaj   +1 more source

Evaluation and comparison of zinc absorption level from 2-Alkyle 3-Hydroxy pyranon-zinc complexes and zinc sulfate in rat in vivo

open access: yesAdvanced Biomedical Research, 2013
Background: Although zinc sulfate has been used to improve disorders originated from zinc deficiency, its low compliance is due to gastrointestinal complications; therefore, other zinc compounds have been suggested as replacers for zinc deficient people.
Badii Akbar   +5 more
doaj   +1 more source

Sensitivity and Specificity of Urinary Ethyl Glucuronide and Ethyl Sulfate in Liver Disease Patients [PDF]

open access: yesAlcoholism: Clinical and Experimental Research, 2012
BackgroundIt is important to monitor alcohol use in the care of patients with liver disease, but patient self‐report can be unreliable. We therefore evaluated the performance of urine ethyl glucuronide (EtG) and ethyl sulfate (EtS) in detecting alcohol use in the days preceding a clinical encounter.MethodsSubjects (n = 120) were recruited at a ...
Scott H, Stewart   +4 more
openaire   +2 more sources

Stability of Ethyl Glucuronide, Ethyl Sulfate, Phosphatidylethanols and Fatty Acid Ethyl Esters in Postmortem Human Blood [PDF]

open access: yesJournal of Analytical Toxicology, 2018
The lack of systematic studies on the stability of ethanol's non-oxidative metabolites in postmortem specimens restricts their use in forensic cases. This study aimed to compare the stability of ethyl glucuronide (EtG), ethyl sulfate (EtS), phosphatidylethanols (PEths) and fatty acid ethyl esters (FAEEs) in postmortem human blood.
Yuming, Liu   +7 more
openaire   +2 more sources

Use of 24kHz ultrasound to improve sulfate precipitation from wastewater [PDF]

open access: yes, 2015
Elevated sulfate concentrations in industrial effluent can lead to a number of significant problems, the most serious of which is the corrosion of concrete sewers as a result of hydrogen sulfide induced biogenic sulfuric acid attack; hydrogen sulfide can
Dargue, Andrew   +5 more
core   +1 more source

Utilizing Infrared Spectroscopy to Analyze the Interfacial Structures of Ionic Liquids/Al2O3 and Ionic Liquids/Mica Mixtures under High Pressures

open access: yesNanomaterials, 2019
The interfacial interactions between ionic liquids (1,3-dimethylimidazolium methyl sulfate and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate) and solid surfaces (mesoporous aluminum oxide and mica) have been studied by infrared spectroscopy at ...
Yen-Hsu Chang   +2 more
doaj   +1 more source

Beneficiation research on a low grade linnaeite ore with hema-tite-pyrite type [PDF]

open access: yesE3S Web of Conferences, 2019
Mineralogy and separation experiments were carried out for a low-grade linnaeite ore (0.052%), which belonged to limonite-hematite-pyrite type complex mineral.
Zhang Xinfang   +7 more
doaj   +1 more source

Competition and coexistence of sulfate-reducing bacteria, acetogens and methanogens in a lab-scale anaerobic bioreactor as affected by changing substrate to sulfate ratio [PDF]

open access: yes, 2008
The microbial population structure and function of natural anaerobic communities maintained in lab-scale continuously stirred tank reactors at different lactate to sulfate ratios and in the absence of sulfate were analyzed using an integrated approach of
Stams, A.J.M. (author)   +15 more
core   +2 more sources

6-Bromo-5-hydroxyindolyl-3-glyoxylate from the Far Eastern Ascidian

open access: yesNatural Product Communications, 2008
The ethanol extract of the marine ascidian Syncarpa oviformis (Kuril Islands, Russia) has been shown to contain three indole derivatives, ethyl indolyl-3-glyoxylate ( 1 ), ethyl 6-bromoindolyl-3-glyoxylate ( 2 ), and ethyl 6-bromo-5-hydroxyindolyl-3 ...
Elena A. Santalova   +4 more
doaj   +1 more source

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