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24 Newest Publications about the topic online analysis

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Energies, Vol. 11, Pages 1479: The Influence of LED Lighting Sources on the Nature of Power Factor

06-Jun-2018 | Wlas, Miroslaw ; Galla, Stanislaw, Energies, 2018

Energies, Vol. 11, Pages 1479: The Influence of LED Lighting Sources on the Nature of Power Factor Energies doi: 10.3390/en11061479 Authors: Miroslaw Wlas Stanislaw Galla This article presents measurements of electric power absorbed by a newly built facility for office and ...

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Sol–gel niobia sorbent with a positively charged octadecyl ligand providing enhanced enrichment of nucleotides and organophosphorus pesticides in capillary microextraction for online HPLC analysis

27-Dec-2017 | Sheshanka Kesani, Abdul Malik, Journal of Separation Science, 2017

Abstract A niobia‐based sol–gel organic–inorganic hybrid sorbent carrying a positively charged C18 ligand (Nb2O5–C18(+ve)) was synthesized to achieve enhanced enrichment capability in capillary microextraction of organophosphorus compounds (which include organophosphorus pesticides and ...

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Basalt fibers functionalized with Gold nanoparticles for in‐tube solid‐phase microextraction

23-Dec-2017 | Juanjuan Feng, Yu Tian, Xiuqin Wang, Chuannan Luo, Min Sun, Journal of Separation Science, 2017

Abstract Basalt fibers were functionalized with gold nanoparticles and characterized by scanning electron microscopy and energy‐dispersive X‐ray spectroscopy. An in‐tube solid‐phase microextraction device was developed by packing the functionalized basalt fibers in a polyether ether ketone ...

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Facile Chip-Based Array Monolithic Microextraction System Online Coupled with ICPMS for Fast Analysis of Trace Heavy Metals in Biological Samples

07-Jun-2017 | Jing Zhang; Beibei Chen; Han Wang; Man He; Bin Hu, Analytical Chemistry, 2017

Trace heavy metals have great impact on biological system; therefore, it is essential to develop suitable analytical methods for the determination of trace heavy metals in biological samples to elucidate their biochemical and physiological functions in organisms. Herein, we presented a chip-based ...

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Sensors, Vol. 17, Pages 1014: A Fast, Efficient Domain Adaptation Technique for Cross-Domain Electroencephalography(EEG)-Based Emotion Recognition

03-May-2017 | Chai, Xin ; Wang, Qisong ; Zhao, Yongping ; Li, Yongqiang ; Liu, Dan ; Liu, Xin ; Bai, Ou, Sensors, 2017

Electroencephalography (EEG)-based emotion recognition is an important element in psychiatric health diagnosis for patients. However, the underlying EEG sensor signals are always non-stationary if they are sampled from different experimental sessions or subjects. This results in the deterioration ...

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Mesoporous titanium oxide with high specific surface area as a coating for in‐tube solid‐phase microextraction combined with HPLC for the analysis of polycyclic aromatic hydrocarbons

20-Apr-2017 | Xiuqin Wang, Juanjuan Feng, Yanan Bu, Yu Tian, Chuannan Luo, Min Sun, Journal of Separation Science, 2017

Stainless‐steel wires coated with mesoporous titanium oxide were placed into a polyether ether ketone tube for in‐tube solid‐phase microextraction, and the coating sorbent was characterized by X‐ray diffraction and scanning electron microscopy. It was combined with high performance liquid ...

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Chemosensing hybrid materials: Chalcones‐functionalized cage‐like mesoporous SBA‐16 material for highly selective detection of toxic metal ions

30-Mar-2017 | Marwa N. El‐Nahass, Tarek A. Fayed, Applied Organometallic Chemistry, 2017

Highly selective and low‐cost optical nanosensors of organic–inorganic hybrid materials for heavy metal ions detection have been prepared via the functionalization of mesoporous silica (SBA‐16) with chalcone fluorescent chromophores. The successful attachment of organic chalcone moieties and ...

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Boron detection and quantification based on the absorption spectra of pyridoxine and its boron complex

02-Mar-2017 | ie=edge, Environmental Chemistry, 2017

Fuming Chen, Ye Ai, Hui Ying Yang Environmental context.Boron, an essential element for human health and the growth of animals and plants, can also be harmful when intake is excessive. Herein, a simple and efficient method for determining boron species in aqueous samples has been developed ...

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Use of Online Spectroscopy to Control Polymerization in Industrial Processes

20-Jan-2017 | Brenda Colegrove, Kishori Deshpande, Rich Harner, Liane Mikolajczyk, Serena K. Stephenson, J. D. Tate, John Weston, Macromolecular Reaction Engineering, 2017

Online analyzers enable manufacturers to operate modern polymerization processes as safely, reliably, and profitably as possible. The most critical application of this technology involves monitoring the reactor itself to determine the molecular weight and comonomer content of the polymer ...

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Online sensing of palladium in flowing streams

11-Jan-2017 | Xiaodong Bu; Michael Williams; Junyong Jo; Kazunori Koide; Christopher J. Welch, Chemical Communication, 2017

Rapid palladium (Pd) catalyzed deallylation of an uncoloured reagent within a flowing stream affords a dose dependent colour formation that can be used for convenient online analysis of trace levels of Pd contamination using a modified HPLC instrument. An application to the online sensing of Pd ...

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