surface sample Articles
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Employing the Benefits of Atomic and Molecular Spectroscopy in a Combined X-ray Fluorescence/Raman Microanalyser
X-ray fluorescence analysis (XRF) is a widely applied routine method for inorganic analysis of a variety of materials; compact ED-XRF equipment with microscopic analysis capabilities (μ-XRF) is available in different forms. Raman Spectroscopy (RS) is a highly specific method of molecular analysis that has shown it self to be admirably suitable for identification of many inorganic and organic ...
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Sample preparation is the key to quality analysis with a laser analyser
Sample preparation is the most important step of any chemical analysis. To get the best results with any elemental alloy analyser regardless of the technology, the sample must be clean before taking a measurement. Otherwise the results are always compromised at least to some extent. The effect of dirty surfaces will vary and some technologies are more forgiving to sample surface conditions than ...
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Benchtop Spectrophotometer Colorimeter
The Features of High Precision Benchtop Spectrophotometer Colorimeter It has high precision and uses the setting of the pre-positioning board, which eliminates the need to use the standard blackboard and whiteboard during the calibration of the traditional colorimeter and color difference meter. The built-in software is powerful, with all the necessary color equations, standard light sources for ...
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Low-frequency plasma activation of nylon 6
Abstract In the study reported in this paper, a series of reproducible conditions were employed to uniformly functionalize nylon 6 surfaces using a commercially available, low-frequency (40 kHz), low-pressure plasma system, utilizing oxygen plasma as a reactive gas. Initially, the plasma-treated samples were investigated using static contact angle measurements, showing a progressive increase in ...
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The Lunar Surface-Exosphere Connection
Bounded by the emptiness of space and the Moon’s surface, the lunar exosphere is an atmosphere so thin that atoms rarely collide. This environment, composed primarily of neutral atoms and molecules, is generated by the interaction of radiation from the sun, meteoritic bombardment and radioactive decay, balanced by losses into space and recycling back to the surface. Sputtering by solar H+ ...
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What is Laser Induced Breakdown Spectroscopy (LIBS)?
Laser Induced Breakdown Spectroscopy or LIBS is an analytical technique that's been used in laboratories for many years. Most handheld LIBS analysers are used for fast sorting of alloys in scrap yards, and alloy identification and analysis in various applications within the metals industry. Watch video here. How does LIBS work? During LIBS analysis, a focused pulsed laser hits the sample ...
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A multi-method comparison of Atchafalaya basin surface water organic matter samples
Received for publication January 29, 2008. Surface water organic matter (OM) was isolated from two distinct sites within the Atchafalaya Basin using a combination of XAD-8 and XAD-4 non-ionic macroporous resins and characterized by a suite of analytical methods, including elemental analysis, 13C cross polarization magic angle spinning nuclear magnetic resonance, attenuated total reflectance ...
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Map of the Month – Multimodal Imaging of WSe2
Welcome to Edinburgh Instruments’ monthly blog celebrating our work in Raman, Photoluminescence, and Fluorescence Lifetime Imaging. Every month we will highlight our pick for Map of the Month to show how our spectrometers can be used to reveal all the hidden secrets in your samples. March Tungsten diselenide (WSe2) is a multifunctional semiconducting material that possesses distinctive ...
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Effects of surface functional groups of activated carbon on adsorption of triclosan from aqueous solution
We report adsorption of triclosan by using activated carbons as a potential method to improve the discharge water purification process. Commercially available activated carbons, P1300, Picazine HP and Hydrodarco C, display different levels of affinity for triclosan from aqueous solution. Surface chemistry of these adsorbents were modified via reduction, oxidation and nitridation, to improve and ...
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Heavy metal speciation and mobility assessment of arid soils in the vicinity of Al Ain landfill, United Arab Emirates
Sixty-four surface soil samples taken in the vicinity of Al Ain landfill were analysed for cadmium, chromium, copper, nickel, lead and zinc by inductively coupled plasma spectroscopy. Extraction techniques were used to establish the association of the total concentrations of the six metals in the soil samples with their contents in the exchangeable, carbonate, iron/manganese oxides, and residual ...
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Why third-party testing houses should consider LIBS analysers
As I meet with new and existing customers and show our range of products, I’ve noticed one issue being brought up quite regularly; not many are aware of LIBS analysers. This has happened often enough for me to realise that there’s a general lack of awareness of LIBS and where it can help. So, here is my introduction to LIBS for those testing houses and my answers to the questions I ...
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What is laser ablation and why you need a nitrogen generator
Laser ablation is becoming a popular technique for direct solid sampling in analytical chemistry. But what exactly is laser ablation and why would you need a nitrogen generator for it? Laser ablation is a process in which a laser beam is used to remove a portion of mass from a sample, usually as a sampling method for isotopic or elemental analysis of a solid sample. The mass from the sampling ...
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Complete and Fast 3D Measurement Solution, New S neox Five Axis
Sensofar Metrology is proud to announce the release of a New S neox Five Axis. The new 3D optical profiler still combining the same high-accuracy rotational module, the high-resolution translation platform and advanced inspection and analysis capabilities but includes the best improvements in terms of design, functionality, performance and speed. This enables automated 3D surface measurements at ...
By Sensofar
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ODIN: Realising the power of Deep UV Raman spectroscopy to characterise equine synovial fluids
ODIN: Realising the power of Deep UV Raman spectroscopy to characterise equine synovial fluids Measuring the molecular and chemical composition of biological samples has remained challenging yet advances in medical treatments rely largely on the ability to detect and identify molecular signatures of disease, as well as developing therapeutics to target specific illnesses within individuals. ...
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What is a Spectrometer?
In the broadest sense a spectrometer is any instrument that is used to measure the variation of a physical characteristic over a given range; i.e. a spectrum. This could be a mass-to-charge ratio spectrum in the case of a mass spectrometer, the variation of nuclear resonant frequencies in an NMR spectrometer or the change in the absorption and emission of light with wavelength in an optical ...
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How Smooth is Smooth?
This question is of interest to many manufacturers today. Why? Because more of them are making high precision, small-scale components that are critical to the function of a host of end products. A company’s livelihood may mandate that the components they use in their products are uniform, definable, and "high-precision". This is where an understanding of smoothness is helpful. So how smooth ...
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