Results 1 to 10 of about 218,490 (265)

Remote Sensing of Chlorophyll Fluorescence in the Ocean Using Imaging Spectrometry: Toward a Vertical Profile of Fluorescence

Geophysical Research Letters, 2019
Chlorophyll fluorescence measurements provide valuable information on phytoplankton abundance and physiology. High spectral resolution measurements from the aircraft‐mounted Portable Remote Imaging SpectroMeter (PRISM) allow for a more robust and ...
Z. K. Erickson, C. Frankenberg, D. R. Thompson, A. F. Thompson, M. Gierach   +4 more
doaj   +1 more source

Application Skills on Determination of Geological Sample by X-ray Fluorescence Spectrometry

Yankuang ceshi, 2015
X-ray Fluorescence Spectrometry (XRF) has such advantages as simple sample preparation, green environmental protection and the simultaneous determination of multiple elements and is widely used in the exploration geochemistry analysis field.
CHEN Jing, GAO Zhi-jun, CHEN Chong-ke, LIU Yan-xia, ZHANG Ming-wei   +4 more
doaj   +1 more source

Monitoring of microbial diversity by fluorescence in situ hybridization and fluorescence spectrometry

Water Science and Technology, 2003
The goal of the research was the development of a simple method to quantify microbial groups in environmental samples. Fluorescence intensity was measured in the sample before and after whole cell fluorescence in situ hybridization with rRNA-targeted, fluorochrome-labeled oligonucleotide probes.
V, Ivanov, S T L, Tay, J H, Tay
openaire   +2 more sources

Application and Research Progress of Rare Earth Element Labeling Technology in Immunoassay Detection

Targets
Rare earth elements (REEs), located in the IIIB group of the periodic table, can be detected in very small quantities by sensitive detection techniques.
Haoran Li, Wencan Jiang, Guojun Zhang
doaj   +1 more source

Simplifying Sample Preparation for Soil Fertility Analysis by X-ray Fluorescence Spectrometry

Sensors, 2019
Portable X-ray fluorescence (pXRF) sensors allow one to collect digital data in a practical and environmentally friendly way, as a complementary method to traditional laboratory analyses.
Tiago Rodrigues Tavares, Lidiane Cristina Nunes, Elton Eduardo Novais Alves, Eduardo de Almeida, Leonardo Felipe Maldaner, Francisco José Krug, Hudson Wallace Pereira de Carvalho, José Paulo Molin   +7 more
doaj   +1 more source

Optimization of an in vitro Pseudomonas aeruginosa Biofilm Model to Examine Antibiotic Pharmacodynamics at the Air-Liquid Interface

npj Biofilms and Microbiomes
Pseudomonas aeruginosa is an important cause of lower respiratory tract infections, such as ventilator-associated bacterial pneumonia (VABP). Using inhaled antibiotics to treat VABP can achieve high drug concentrations at the infection site while ...
Xing Tan, Yanqin Huang, Amisha Rana, Nidhi Singh, Taylor C. Abbey, Hui Chen, Peter T. Toth, Zackery P. Bulman   +7 more
doaj   +1 more source

Effect of thickness on fluorescence of resin-composites and dental substrates

Brazilian Dental Science, 2016
Objective: This study evaluated the effect of thickness on fluorescence of resin composites and tooth substrates (enamel and dentin). Material and methods: Ninety bovine incisors were used, resulting in 45 dentin and 45 enamel disks (6 mm diameter and 0 ...
Carla Tavares, Luiza Tavares, Ayla Correia, Eduardo Bresciani, Taciana Caneppele   +4 more
doaj   +1 more source

Determination of trace fluoroquinolones in water solutions and in medicinal preparations by conventional and synchronous fluorescence spectrometry

Open Chemistry, 2018
Simple, rapid and sensitive and synchronous fluorescence spectrometry (SFS) were developed for determination the fluoroquinolones of ciprofloxacin (CIP), norfloxacin (NOR) and enrofloxacin (ENR) separately in water solutions and in medicinal preparations.
Yao Ting, Wang Hongling, Si Xuejing, Yin Shengnan, Wu Tunhua, Wang Ping   +5 more
doaj   +1 more source

Study of Araucaria angustifolia nuts by Gamma Spectrometry and X-Ray Fluorescence

Revista de la Sociedad Científica del Paraguay, 2019
The seed of Araucaria angustifolia is largely produced and consumed in Parana state, Brazil. It has an estimated annual consumption of approximately 0.167 kg per capita. The samples of seeds were acquired in 8 different commercial points of Londrina city
Edher Zacarías Herrera, Avacir Casanova Andrello, Carlos Roberto Appoloni   +2 more
doaj   +1 more source

Determination of 23 Elements in Biological Samples by Wavelength Dispersion X-ray Fluorescence Spectrometry with High Pressure Pressed Powder Pellet Preparation

Yankuang ceshi, 2014
In the determination of biological samples by X-ray Fluorescence Spectrometry, sample powder pellets pressed by traditional sample preparation technique at 220-440 MPa are not compact and smooth, so the sample room of X-ray Fluorescence Spectrometry ...
YU Zhao-shui, ZHANG Qin, LI Xiao-li, FAN Shou-zhong, PAN Yan-shan, LI Guo-hui   +5 more
doaj   +2 more sources