Results 41 to 50 of about 3,782,588 (290)

Characterization of Particle Size Distributions and Water-Soluble Ions in Particulate Matter Measured at a Broiler Farm

open access: yesAgriculture, 2023
The chemical composition and size distribution of particulate matter produced at broiler poultry houses is not well understood, so this is a novel study to understand the particulate size distributions at a poultry house as well as the ionic composition ...
Philip J. Silva   +12 more
doaj   +1 more source

Quantification of voriconazole in plasma by liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2005
A convenient liquid chromatography-tandem mass spectrometry method for the quantification of the triazole antifungal agent voriconazole in plasma samples is described. Fenbuconazole is used as an internal standard.
Boyd   +16 more
core   +1 more source

Simultaneous determination of chloride, bromide and iodide in foodstuffs by low pressure ion-exchange chromatography with visible light detection

open access: yesCzech Journal of Food Sciences, 2011
An ion-exchange chromatography method with visible light detection was developed for the simultaneous determination of chloride, bromide, and iodide in foodstuffs.
Lingyun Yu   +4 more
doaj   +1 more source

Ion-Exclusion/Cation-Exchange Chromatography Using Dual-Ion-Exchange Groups for Simultaneous Determination of Inorganic Ionic Nutrients in Fertilizer Solution Samples for the Management of Hydroponic Culture

open access: yesAgronomy, 2021
In this study, ion-exclusion/cation-exchange chromatography (IEC/CEC) using dual-ion-exchange groups (carboxy and sulfo groups) for the simultaneous determination of anions (SO42−, Cl−, NO3−, and HPO42−) and cations (Na+, NH4+, K+, Mg2+, and Ca2+) was ...
Daisuke Kozaki   +7 more
doaj   +1 more source

Measurements of cadmium levels in relation to tobacco dependence and as a function of cytisine administration

open access: yesScientific Reports
Cigarette smoking delivers a number of heavy metals, including cadmium (Cd), into the body. Bioaccumulation may result in an increase in pathological consequences over time.
Karol Wróblewski   +4 more
doaj   +1 more source

High Resolution Chemical Stratigraphies of Atmospheric Depositions from a 4 m Depth Snow Pit at Dome C (East Antarctica)

open access: yesAtmosphere, 2021
In this work, we present chemical stratigraphies of two sampling lines collected within a 4 m depth snow pit dug in Dome C during the Antarctic summer Campaign 2017/2018, 12 years after the last reported snow pit. The first sampling line was analyzed for
Laura Caiazzo   +6 more
doaj   +1 more source

Ion exchange chromatography – basic principles and application [PDF]

open access: yes, 2011
Ion-Exchange Chromatography (IEC) allows for the separation of ionizable molecules on the basis of differences in charge properties. Its large sample-handling capacity, broad applicability (particularly to proteins and enzymes), moderate cost, powerful ...
Cummins, Phil   +2 more
core  

Purification and Characterization of a Chloroplast Outer-Envelope-Bound, ATP-Dependent Protein Kinase [PDF]

open access: yes, 1988
An ATP-dependent protein kinase was partially purified from isolated outer envelope membranes of pea (Pisum sativum L., Progress No. 9) chloroplasts. The purified kinase had a molecular weight of 70 kilodaltons, as determined by sodium dodecyl sulfate ...
Soll, Jürgen
core   +2 more sources

Antimicrobial activity of endophytic fungi Kabatiella caulivora Var. A from Alyxia reinwardtii Bl.

open access: yesJournal of Biological Researches, 2012
Isolation and characterization of β-1,3-endoglucanase from cabbage (Brassica oleracea var. capitata L.) have been done. It showed 40° C of optimum temperature, and optimum pH is 7.
Y. Sri Wulan Manuhara
doaj   +1 more source

Development of Analytical Methods for the Determination of N-Bromosuccinimide in Different Active Pharmaceutical Ingredients by High-Performance Ion Chromatography with Suppressed Conductivity Detection

open access: yesSeparations, 2022
Product safety is important for medicines. For drugs on the market, it must be demonstrated that the levels of toxic contaminants are below the permitted limits. These impurities are used as reagents or are generated during synthesis.
Boglárka Páll   +3 more
doaj   +1 more source

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