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Found 67 dataset(s) matching "retention time".
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Water primrose (Ludwigia hexapetala) is an invasive aquatic vegetation that has rapidly increased in coverage throughout the Sacramento-San Joaquin Delta. Water primrose has invaded wetlands and...
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The objective of this example case was to maximize peak height and minimize peak width of 11 iodinated standards analyzed using gas chromatography-mass spectrometry (GC-MS). Seven parameters...
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Raw data (peak area and height, retention time) for each mass transition for each sample. This dataset is associated with the following publication: Miller, K., and M. Strynar. Improved Tandem...
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This dataset includes a list of chemicals used to create the ChromGenius retention time prediction model used for validation of non-targeted compounds. The list of identified non-targeted...
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There is a growing need in the field of exposure science for monitoring methods that rapidly screen environmental media for suspect contaminants. Measurement and analysis platforms, based on high...
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This study was designed to analyze the impact of four televised public service announcements (PSAs) aired for three months in Lima, Ohio. The researchers sought to answer three specific ...
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These data represent both inputs for and estimates from a medium-resolution (1:100,000 scale) NHDPlus SPAtially Referenced Regression on Watershed attributes (SPARROW) model for the Chesapeake Bay...
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Records not included in separating employee’s Official Personnel Folder (OPF), documenting individual employees’ transfer to another Federal agency or office or voluntary, involuntary, disability,...
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Automated particle analysis (SEM/EDS) data from samples known to have been exposed to gunshot residue and from samples occasionally mistaken for gunshot residue - like brake dust and fireworks....
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This dataset provides the survival, retention, and growth of Emerald Shiner Notropis atherinoides (EMS) tagged with passive integrated transponder (PIT) tags and Arkansas River Shiner Notropis...
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The first portion of this dataset provides the survival, retention, and growth of Emerald Shiner Notropis atherinoides (EMS) tagged with passive integrated transponder (PIT) tags and Arkansas...
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Polar bears (Ursus maritimus) are difficult to study because of logistical challenges. Satellite radio collars are an excellent tool for efficiently collecting information on the distribution and...
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<p>Data and code for "Cover crop inclusion and residue retention improves soybean production and physiology in drought conditions"</p> <p>CONTEXT: Soybean (Glycine max (L.) Merr.) planting has...
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Background Icodextrin is a high molecular weight, starch-derived glucose polymer, which is capable of inducing sustained ultrafiltration over prolonged (12–16 hour) peritoneal dialysis...
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These data show details of time taken to fit tail tags on horses at Herd Management Areas in Utah and Nevada. We provide the time of day that individuals entered and exited a squeeze chute and the...
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Great Lakes coastal marshes have the potential to filter water coming off of the landscape and remove sediments and nutrients before they reach the lakes. However, this ability has largely been...
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Background Information on the effectiveness of elementary school level, tobacco-use prevention programs is generally limited. This study assessed the impact of a structured, one-time...
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Floodplain surficial soil samples (10 cm depth) were collected from 12 streams in the urbanized Piedmont region of northern Virginia, representing a chronosequence of time (1-10 yrs) since stream...
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This dataset provides number of Individuals who effectuated their enrollment and had an active policy at the time the enrollment report was compiled. Enrollment is effectuated when an individual...