Results 21 to 30 of about 2,209,327 (291)

Field Evaluation of Solid Sorbents for Ambient Air Sampling of Pesticides

Air, Soil and Water Research, 2010
Seven solid sorbents including Amberlite ® XAD-2 and XAD-4, Tenax-TA ® , Anasorb-747, Chromosorb 102, 108, and 750 were evaluated for the collection of the gas phase fraction of pesticides under field conditions at an agricultural site, Bratt's Lake, SK,
Renata Raina, Patricia Hall
doaj   +1 more source

Total Versus Inorganic and Organic Species of As, Cr, and Sb in Flavored and Functional Drinking Waters: Analysis and Risk Assessment

Molecules, 2020
Packing material can release certain elements such as As, Cr, or Sb into its content and, thus, contaminate the drinking water. The effect of As, Cr, and Sb on human health depends highly on the chemical species in which these elements are introduced ...
Wiktor Lorenc, Barbara Markiewicz, Dariusz Kruszka, Piotr Kachlicki, Danuta Barałkiewicz   +4 more
doaj   +1 more source

Complexes of the Mycotoxins Citrinin and Ochratoxin A with Aluminum Ions and their Spectroscopic Properties

Toxins, 2018
The sensitive detection of the mycotoxin citrinin (CIT) utilizing its fluorescence requires approaches to enhance the emission. In this respect, we studied the complexation of CIT and ochratoxin A (OTA) with Al3+ in methanol using absorption and ...
Julia Keller, Daniel Moldenhauer, Liam Byrne, Hajo Haase, Ute Resch-Genger, Matthias Koch   +5 more
doaj   +1 more source

Online immunocapture ICP-MS for the determination of the metalloprotein ceruloplasmin in human serum

BMC Research Notes, 2018
Objective The human copper-protein ceruloplasmin (Cp) is the major copper-containing protein in the human body. The accurate determination of Cp is mandatory for the reliable diagnosis of several diseases.
Bogdan Bernevic, Ahmed H. El-Khatib, Norbert Jakubowski, Michael G. Weller   +3 more
doaj   +1 more source

Object identification by using orthonormal circus functions from the trace transform [PDF]

, 2012
In this paper we present an efficient way to both compute and extract salient information from trace transform signatures to perform object identification tasks.
Cerda Villafaña, Gustavo, Frias Velazquez, Andres, Ortiz Lopez, Carlos Armando, Philips, Wilfried, Pizurica, Aleksandra   +4 more
core   +2 more sources

Pressurized Solvent Extraction with Ethyl Acetate and Liquid Chromatography—Tandem Mass Spectrometry for the Analysis of Selected Conazole Fungicides in Matcha

Toxics, 2018
The extraction of powdered nutraceuticals is challenging due to the low water content and high concentration of matrix components that can lead to significant matrix effects in liquid chromatography-positive ion electrospray ionization-tandem mass ...
Renata Raina-Fulton, Aisha A. Mohamad
doaj   +1 more source

Craft-and-Stick Xurographic Manufacturing of Integrated Microfluidic Electrochemical Sensing Platform

Biosensors, 2023
An innovative modular approach for facile design and construction of flexible microfluidic biosensor platforms based on a dry manufacturing “craft-and-stick” approach is developed. The design and fabrication of the flexible graphene paper electrode (GPE)
Supatinee Kongkaew, Lingyin Meng, Warakorn Limbut, Guozhen Liu, Proespichaya Kanatharana, Panote Thavarungkul, Wing Cheung Mak   +6 more
doaj   +1 more source

Analysis of a multi-wavelength time-resolved observation of a coronal loop [PDF]

, 2005
Several items on the diagnostics and interpretation of coronal loop observations are under debate. In this work, we analyze a well-defined loop system detected in a time-resolved observation in several spectral bands.
Ciaravella, Angela, Reale, Fabio
core   +2 more sources

An Unlabeled Electrochemical Immunosensor Uses Poly(thionine) and Graphene Quantum Dot-Modified Activated Marigold Flower Carbon for Early Prostate Cancer Detection

Biosensors
The activated carbon from marigold flowers (MG) was used to make an unlabeled electrochemical immunosensor to determine prostate cancer. MG was synthesized by hydrothermal carbonization and pyrolysis.
Suparat Cotchim, Supatinee Kongkaew, Panote Thavarungkul, Proespichaya Kanatharana, Warakorn Limbut   +4 more
doaj   +1 more source

Total Arsenic and Arsenic Species Determination in Freshwater Fish by ICP-DRC-MS and HPLC/ICP-DRC-MS Techniques

Molecules, 2019
Analytical methods for the determination of total arsenic (TAs) and arsenic species (arsenite—As(III), arsenate—As(V), monomethylarsenic acid—MMA, dimethylarsenic acid—DMA and arsenobetaine—AsB) in freshwater fish samples ...
Izabela Komorowicz, Adam Sajnóg, Danuta Barałkiewicz   +2 more
doaj   +1 more source