Yokogushi : TEM & NMR combine technique for full crystaline structure

Crystalline structure including hydrogen atoms are now available from nano- to micro-crystals of 100 nm to 1 μm using electron and NMR nano-crystallography approach. The overall crystalline structures can be determined by electron diffraction (ED) which is one of the observation mode of transmission electron microscope (TEM).

SEM-Easy Cryo

JEOL Gatan 3View® Serial Block Face Imaging System

3View Serial Block Face Imaging of Synapse using JEOL Scanning Electron Microscope. Courtesy of Professor Deniz Kirik and Lina Gefors, Bioimaging Center, Medical Faculty, Lund University, Sweden.
> voir la vidéo

SEM-Correlative Microscopy_Photomontage_SEM Supporter

EM Supporter software automates SEM image collection, creation of a photo montage and image analysis*. Initial navigation and set up can be accomplished from any image (optical microscope, digital camera, SEM image) enabling correlative microscopy. Recipes can be created for moving to specific locations on a multiple sample set for collection of individual images or creating a grid for photo montage collection.
> lire

TEM-Correlative Microscopy

SEM-Low Vaccum secondary electron detector

SEM-STEM detector

STEM-in-SEM (Scanning Transmission Electron Microscopy in an SEM) has become a popular technique for biologists, polymer scientists and materials scientists for its ease of use, cost effectiveness and high resolution. It is especially suited to investigating the internal structure of thin film (100-200nm) samples as well as size and shape of submicron to nanometer particles.
> lire

SEM – Aqua Cover tecnique for direct observation of water containing sample

Direct observation of water containing specimens as they are with ordinary SEMs is one of the long desired goals of SEM. We have succeeded to observe a water droplet with a newly developed technique, Aqua Cover technique, with a commercial SEM, JSM-IT300LV. Aqua Cover, as you will see, can easily be extended to observe any water containing specimen.
> lire

Food analysis solutions application note

Four demands have developed in the food product field for highly accurate, objective evaluation technologies to analyze aspects such as nutritional components, flavors and tastes, texture, and antioxidation functions.
JEOL offers numerous analytical tools to support both “food safety & security” as well as various evaluations of primary, secondary and tertiary functions of foodstuffs which are useful for a wide range of users associated with this field.
This Foodnote introduces the features of each of the instruments and actual analysis examples, and is designed for researchers and engineers who are considering purchases of instruments. This brochure also presents comprehensive evaluations and analysis solutions that can be achieved with combinations of multiple instruments.
> lire

BioNote

Instrumental analysis has contributed to the progress of biological science, through the observation of morphology, the chemical analysis of compounds, the elucidation of amino acid sequences of proteins, etc. Furthermore, this progress has been accelerated by the development of analytical methods, which are used in diverse fields like medical science, agriculture, food and biotechnology, as well as the basic research work like physiology, biochemistry and genetics.
This Bionote presents an overview of the basics, namely principles and features of various instruments, as well as application examples using numerous optional attachments. We hope that the Bionote will assist researchers and engineers who intend to perform analyses in finding and exploring new approaches.
> lire

Chemical State Analyses by Soft X-ray Emission Spectroscopy

Masami Terauchi and Yohei Sato. Center for Advanced Microscopy and Spectroscopy, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
A metallization of Si-sp3 network of Na8Si46 and a chemical state distribution in Na-doped CaB6, were observed by using a commercial EPMA-SXES instrument. Information observed in L-emission of 3d transition metal elements obtained by an original SEM-SXES instrument is discussed.

Metal fatigue

Metal fatigue

SEM is an important tool in understanding failure mechanisms related to metal fatigue.
Understanding the root cause of a metal fracture is often found by studying the microstructure at the fracture surface. With the higher depth of field and resolution that can be achieved with SEM, it is easy to examine this microstructure.

Télécharger LIBnote

LIBnote : Lithium ion battery basic structure and fabrication process

The applications for lithium ion batteries (LIB) cover a wide range, from power sources for personal computers and mobile devices to automobiles, and there is always a demand for even better performance and safety. In order to ensure the performance and quality of LIB, analysis and evaluation using high-performance assessment systems is necessary. JEOL offers a full line-up of equipment to support the development of new LIB technologies and to improve product quality, including instruments for morphology observation and surface analysis, chemical analysis systems to perform structural analysis on a molecular level, as well as fabrication systems to create high-performance coatings and powders. This LIB note offers solutions for researchers and engineers who are looking for the best equipment for their application.
> lire

BatteryNote

Battery cells are essential in modern life as they are extensively used in mobile phones, personal computers, and even as the power source of some automobiles in recent years. In addition, the research and development of rechargeable batteries has become increasingly important in the endeavor to realize a low-carbon society.
The demand for fuel cells as hydrogen-based generators is also expected to grow, as fuel cells have already been widely applied to household equipment and automobiles.
JEOL believes that analyses and evaluations by using various high-performance evaluation instruments are required to improve both the performance and quality of these battery cells.
JEOL offers a wide variety of analytical instruments available for morphological observations, surface analyses, structure analyses, and chemical analyses at micro- to nano-scales for the purposes of research, development, and quality improvement.
This Battery Note has been created to provide solutions and reference information for research and development activities focused on lithium ion batteries (LIBs).
> lire

TEM-HAADF – Quantification du contraste HAADF

A procedure that produces sub-nanometrically resolved chemical mappings of MOCVD-grown
InGaAs/InAlAs/InP quantum cascade lasers is presented. The chemical mappings reveal that,
although the structure is lattice-matched to InP, the InAlAs barriers do not attain the nominal aluminum content—48%—and are, in fact, InGaAlAs quaternaries. This information is used to adjust the aluminum precursor flow and fine-tune the composition of the barriers, resulting in a significant improvement of the fabricated lasers.
> lire

YOKOGUSHI – Study of a gold star mothers stamp

Experimental : A Gold Star Mothers Stamp from 1948 has a lead chromate pigment that
we analyzed via: the JSM-IT300LV with an EDS spectrometer, the JMS-T100LP “AccuTOF DART” and the JMS-S3000 “SpiralTOF”.
> lire

SEM – Extreme Low Voltage Imaging with JEOL FE-SEMs

SEM – CD Energy Filter-UED

TEM – TEM sample holder for Lithium or air sensitive sample study

The lithium analysis by TEM requires to keep the sample under neutral atmosphere preventing its
oxidation. For this purpose, JEOL has developed a special TEM sample holder.
> lire

SEM – 3D Image software

JEOL’s Three Dimensional Image Software is a program that uses stereo pair SEM images to construct a three dimensional (3D) image of the sample surface. From this 3D image, height and contour maps can be created to provide cross sectional shape and height data.
> lire

MS SpiralTOF – TOF Synthetic Polymer Structure Analysis PPG

In this work, we analyzed Polypropylene Glycol (PPG) by using the JMS-S3000 SpiralTOF with the TOF-TOF option. The resulting high-energy CID data was then processed using the Polymerix™ (Sierra Analytics, Inc., http://massspec.com/) analysis software.
> lire

SEM – What is the magnification ?

JSX-JXA – Analyse by X ray fluorescence and microprobe of cracks in brass piping parts

In order to understand the cause and minimize the recurrence of a product malfunction, it is necessary to pursue defects at an early stage.
An X-ray fluorescence spectrometer (ED-XRF) can provide fast, non-destructive elemental analysis for any sample state such as solid, liquid, or powder. It can be utilized as a quick screening instrument to track down the source of problems.
> lire

PolymernotePolymers note. Characterization of Polymers by JEOL Solutions

Polymers are used in a wide range of fields such as food wrapping materials, medicine packing, and industrial materials and products. Properties and functionalities of polymer materials are dependent on various factors, including molecular weight, molecular weight distribution, molecular chemical structures (primary structures), morphology of molecular chains (secondary structures) depending on the spinning angles of chemical bonds, and crystalline or non-crystalline structures of inner-molecules and inter-molecules, as well as spherulite structure aggregates, phase separation structures and orientations (higher-order structures). It is of prime importance to analyze and evaluate the structures and properties of polymers as well as the correlation between these two factors, and to feed these analysis and evaluation results to the development and manufacturing sites for the enhancement of the performance and quality control of polymer materials and polymer products. On the other hand, industry in Japan is supported by functional molecules, which are becoming more advanced and more complicated. This makes it more difficult to characterize such polymers, thereby increasing the importance of multiple analyses that combine a variety of analytical methods. This Polymer note introduces a broad range of instruments used for polymer analysis and their applications.
> lire

Yokogushi : TEM & NMR combine technique for full crystaline structure

Crystalline structure including hydrogen atoms are now available from nano- to micro-crystals of 100 nm to 1 μm using electron and NMR nano-crystallography approach. The overall crystalline structures can be determined by electron diffraction (ED) which is one of the observation mode of transmission electron microscope (TEM).

Direct analysis of a methanol flame by using a compact high-resolution multi-turn mass spectrometer

The InfiTOF can be used for “In-situ” high-resolution monitoring of real-time gas phase reactions like combustion. In this work, we show the real-time monitoring of combustion products in a diffuse methanol flame by using this compact high resolution TOF-MS system.

Analysis of a gas mixture containing ammonia and methane by using a compact high-resolution multi-turn mass spectrometer

Analysis of a chemical ionization reagent gas consisting of a 5% mixture of ammonia in methane is demonstrated by using the JEOL InfiTOFTM compact high-resolution mass spectrometer.

Real time monitoring for gas phase h/d exchange reaction in H2O and D2O by using a compact high-resolution multi-turn mass spectrometer

The InfiTOF is suitable for real time gas reaction monitoring. In this report, we showed real time monitoring for H/D exchange reaction of light water (H2O) and heavy water (D2O) which is one of the simplest chemical reaction.

YOKOGUSHI-Study of a gold star mothers stamp

In  this  applications  note,  we  performed  an  analysis  of  a  Gold  Star Mothers  Postage  Stamp  by  using  three  JEOL  instruments.  We  used  the JSM-IT300LV, the JMS-T100LP  « AccuTOF-DART » and the JMS-S3000 « SpiralTOF ».

MS SpiralTOF MALDI for small molecule analysis : A complex drug mixture

This is shown here for the high-resolution analysis of a mixture of 32 small-molecule drugs analyzed by MALDI with the JEOL SpiralTOF mass spectrometer.

MS SpiralTOF-TOF Synthetic Polymer Structure Anlaysis PPG

In this work, we analyzed Polypropylene Glycol (PPG) by using the JMS-S3000 SpiralTOF with the TOF-TOF option.

NMR Single-Tuned 4 mm Cryocoil MAS Probe

A tunable single-tuned 4 mm Cryocoil MAS probe was developed, and demonstrated for 6Li and 29Si under 14.1 T WB magnet.