Directly Heated High Surface Area Solid Phase Microextraction Sampler for Rapid Field Forensic Analyses

2009 ◽  
Vol 81 (21) ◽  
pp. 8724-8733 ◽  
Author(s):  
Scott A. Ramsey ◽  
Robert V. Mustacich ◽  
Philip A. Smith ◽  
Gary L. Hook ◽  
Brian A. Eckenrode
Keyword(s):  
Surface Area ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
High Surface ◽  
High Surface Area

Application of a High Surface Area Solid-Phase Microextraction Air Sampling Device: Collection and Analysis of Chemical Warfare Agent Surrogate and Degradation Compounds

2013 ◽  
Vol 85 (18) ◽  
pp. 8626-8633 ◽  
Author(s):  
Michael E. Stevens ◽  
Christopher A. Tipple ◽  
Philip A. Smith ◽  
David S. Cho ◽  
Robert V. Mustacich ◽  
...  
Keyword(s):  
Surface Area ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
High Surface ◽  
High Surface Area ◽  
Air Sampling ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Sampling Device

A silica aerogel as an extractive coating for in-tube solid-phase microextraction to determine polycyclic aromatic hydrocarbons in water samples

2019 ◽  
Vol 11 (45) ◽  
pp. 5784-5792 ◽  
Author(s):  
Xiangping Ji ◽  
Juanjuan Feng ◽  
Chunying Li ◽  
Sen Han ◽  
Jiaqing Feng ◽  
...  
Keyword(s):  
Silica Aerogel ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Ambient Pressure ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Ambient Pressure Drying ◽  
Acid Base ◽  
Polycyclic Aromatic

A silica aerogel with high surface area was prepared by an acid–base two-step catalytic sol–gel method under ambient pressure drying.

scholarly journals Investigations into the utility of high-surface area silica pellets as potential solid-phase synthesis supports

Tetrahedron ◽  
2005 ◽  
Vol 61 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Roxana S. Timofte ◽  
Jeremy J. Titman ◽  
Limin Shao ◽  
John C. Stephens ◽  
Simon Woodward
Keyword(s):  
Surface Area ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
High Surface ◽  
High Surface Area ◽  
Phase Synthesis

scholarly journals Solid phase extraction of DNA from biological samples in a post-based, high surface area poly(methyl methacrylate) (PMMA) microdevice

Lab on a Chip ◽  
2011 ◽  
Vol 11 (9) ◽  
pp. 1603 ◽  
Author(s):  
Carmen R. Reedy ◽  
Carol W. Price ◽  
Jeff Sniegowski ◽  
Jerome P. Ferrance ◽  
Matthew Begley ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Methyl Methacrylate ◽  
Surface Area ◽  
Biological Samples ◽  
Solid Phase ◽  
High Surface ◽  
High Surface Area ◽  
Phase Extraction ◽  
Poly Methyl Methacrylate

scholarly journals Activated Carbon from Rice Husk Biochar with High Surface Area

2020 ◽  
Vol 11 (3) ◽  
pp. 10265-10277
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Rice Husk ◽  
Activated Carbons ◽  
Solid Phase ◽  
Chemical Activation ◽  
High Surface ◽  
High Surface Area ◽  
Array Detector ◽  
Functional Density Theory

Activated carbons derived from rice husk pyrolysis (biochar) were prepared by chemical activation at different biochar/K2CO3 proportions in order to assess its capacity as adsorbent. The activated material was characterized by X-ray diffraction (DRX), Raman spectroscopy, scanning electron microscopy (SEM), the Brunauer, Emmet, and Teller (BET) method. The Barret, Joyner, and Halenda (BJH) method and functional density theory (DFT), presenting interesting texture properties, such as high surface area (BET 1850 m2 g-1) and microporosity, which allow its use as a sorbent phase in solid-phase extraction (SPE) of the main constituents of the aqueous pyrolysis phase. It was demonstrated that the activated carbon (RH-AC) adsorbs different compounds present in from rice husk pyrolysis wastewater through quantitative analysis by high-performance liquid chromatography with a diode-array detector (HPLC-DAD), presenting good linearity (R2 > 0.996) at 280 nm.

A biocompatible high surface area ZnO-based molecularly imprinted polymer for the determination of meloxicam in water media and plasma

2019 ◽  
Vol 43 (22) ◽  
pp. 8492-8501 ◽  
Author(s):  
Ensiyeh Rahmati ◽  
Zahra Rafiee
Keyword(s):  
Surface Area ◽  
Molecularly Imprinted Polymer ◽  
Solid Phase ◽  
High Surface ◽  
High Surface Area ◽  
Zno Nanoparticle ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Water Media

Ultrasound-assisted solid-phase microextraction (SPME) by a functionalized high surface area ZnO nanoparticle (NP)-based molecularly imprinted polymer (MIP) followed by UV-Vis spectrophotometry was described as a selective, economic and rapid technique which was established for the extraction and preconcentration of meloxicam (MEL) in water media and plasma.

Chromium speciation analysis by solid-phase extraction on a high surface area TiO2

The Analyst ◽  
2000 ◽  
Vol 125 (4) ◽  
pp. 693-698 ◽  
Author(s):  
Emilia Vassileva ◽  
Teodor Stoychev ◽  
Christo Daiev ◽  
Konstantin Hadjiivanov
Keyword(s):  
Solid Phase Extraction ◽  
Surface Area ◽  
Solid Phase ◽  
High Surface ◽  
High Surface Area ◽  
Speciation Analysis ◽  
Phase Extraction ◽  
Chromium Speciation

Tenacious Mass Transfer Limitations Drive Catalytic Selectivity during Electrochemical Carbon Dioxide Reduction

2019 ◽  
Author(s):  
Kailun Yang ◽  
Recep Kas ◽  
Wilson A. Smith
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Catalyst Layer ◽  
Active Surface ◽  
Active Surface Area ◽  
High Concentration ◽  
Copper Electrodes ◽  
Surface Enhanced ◽  
Local Current

<p>This study evaluated the performance of the commonly used strong buffer electrolytes, i.e. phosphate buffers, during CO<sub>2</sub> electroreduction in neutral pH conditions by using in-situ surface enhanced infrared absorption spectroscopy (SEIRAS). Unfortunately, the buffers break down a lot faster than anticipated which has serious implications on many studies in the literature such as selectivity and kinetic analysis of the electrocatalysts. Increasing electrolyte concentration, surprisingly, did not extend the potential window of the phosphate buffers due to dramatic increase in hydrogen evolution reaction. Even high concentration phosphate buffers (1 M) break down within the potentials (-1 V vs RHE) where hydrocarbons are formed on copper electrodes. We have extended the discussion to high surface area electrodes by evaluating electrodes composed of copper nanowires. We would like highlight that it is not possible to cope with high local current densities on these high surface area electrodes by using high buffer capacity solutions and the CO<sub>2</sub> electrocatalysts are needed to be evaluated by casting thin nanoparticle films onto inert substrates as commonly employed in fuel cell reactions and up to now scarcely employed in CO<sub>2</sub> electroreduction. In addition, we underscore that normalization of the electrocatalytic activity to the electrochemical active surface area is not the ultimate solution due to concentration gradient along the catalyst layer.This will “underestimate” the activity of high surface electrocatalyst and the degree of underestimation will depend on the thickness, porosity and morphology of the catalyst layer. </p> <p> </p>

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