61 results about "Time of flight secondary ion mass spectroscopy" patented technology

A surface analysis apparatus includes a unit configured to bombard a sample surface with at least two types of ions having different sizes; a measurement device for measuring, with a time-of-flight secondary ion mass spectrometer, a mass spectrum of ions emitted from the sample surface; and an information processor outputting a difference between two mass spectra measured by bombardment of different types of ions.

An information acquisition method for acquiring information on a target object, that includes a step of promoting ionization of the target object using a substance for promoting ionization of the target object to cause the target object to emit, and a step of acquiring information on the mass of the flew target object using time-of-flight secondary ion mass spectrometry.

The present invention relates to lithium composite compound particles having a composition represented by the formula: Li_1+xNi_1-y-zCo_yM_zO₂ (M=B or Al), wherein the lithium composite compound particles have an ionic strength ratio A (LiO⁻/NiO₂⁻) of not more than 0.3 and an ionic strength ratio B (Li₃CO₃⁺/Ni⁺) of not more than 20 as measured on a surface of the respective lithium composite compound particles using a time-of-flight secondary ion mass spectrometer. The lithium composite compound particles of the present invention can be used as a positive electrode active substance of a secondary battery which has good cycle characteristics and an excellent high-temperature storage property.

A time-of-flight secondary ion mass spectrometer comprises an ion source which generates cluster ions each comprised of two or more atoms, a pulsing mechanism which pulses the cluster ions, a selecting mechanism which selects ions having a specific mass number from the pulsed cluster ions and passes the selected ions in an ON state of the selecting mechanism, and, passes the pulsed cluster ions without the selecting in an OFF state of the selecting mechanism, and a time-of-flight mass spectrometric unit which measures a mass spectrum of secondary ions generated from a sample using a difference in time of flight when the sample is irradiated with the ions passed through the selecting mechanism.

A rapid and efficient method for novel biological substance screening by surface analysis has been developed using Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS). This method relies on the surface screening of an array of micro-organisms grown on porous membranes, which had previously been in contact with a solid growth medium. TOF-SIMS analysis differentiates among organisms producing different substances, either directly as molecular product, or indirectly through the use of multivariate statistical data reduction techniques. This method has many advantages over traditional microbial screening methods, which require sample preparation and time for assay development.

The present invention aims to provide lithium composite compound particles which can exhibit good cycle characteristics and an excellent high-temperature storage property when used as a positive electrode active substance of a secondary battery, and a secondary battery using the lithium composite compound particles. The present invention relates to lithium composite compound particles having a composition represented by the compositional formula: Li_1+xNi_{1−y−z−a}Co_yMn_zM_aO₂, in which the lithium composite compound particles have an ionic strength ratio A (LiO⁻/NiO₂⁻) of not more than 0.5 and an ionic strength ratio B (Li₃CO₃⁺/Ni⁺) of not more than 20 as measured on a surface of the respective lithium composite compound particles using a time-of-flight secondary ion mass spectrometer.

A method for analyzing an object by means of TOF-SIMS is adapted to apply an ionization promoter (metal such as silver or gold) to the object and generate secondary ions that correspond to parent molecules and can be used to determine the type of the object. A segregation/refinement technique such as electrophoresis or thin-layer chromatography can be employed for a mixed protein sample by using the method to obtain a two-dimensional image showing a high spatial resolution.

A toner having good environmental stability, low-temperature fixability, development durability, and storage stability is provided. A toner includes toner particles each including a surface layer that contains an organic silicon polymer. The organic silicon polymer is obtained by polymerizing a compound having a specific structure. The surface layers have a particular average thickness Dav. In mapping by focused-ion-beam time-of-flight secondary ion mass spectroscopy, a ratio of silicon ions to carbon ions released from the toner particles upon irradiation of toner particle surfaces with primary ions is a particular value.

The invention discloses a method for evaluating the aging state of high-temperature vulcanized silicone rubber. According to the method, the aging state is evaluated by taking a mass spectrum peak height ratio of SiCH <3+> to SiC3H9 <+> as an aging judgment basis. Time-of-flight secondary ion mass spectrometry detection and quantitative analysis are carried out on a characteristic product in a silicone rubber aging process, so that the service life state of the material is accurately judged. A power grid company can judge whether a composite insulator needs to be replaced or not by adopting the diagnosis method, thereby ensuring safe and stable operation of a power grid.

Provided is a sample fixing member for a time-of-flight secondary ion mass spectrometer that: can prevent the contamination of a solid sample; can stably fix the solid sample; and enables accurate detection of a secondary ion in a time-of-flight secondary ion mass spectrometer. A sample fixing member for a time-of-flight secondary ion mass spectrometer of the present invention includes a fibrous columnar structure including a plurality of fibrous columnar objects each having a length of 200 μm or more.

[Object] To provide a metal-coated polyimide resin substrate that does not deteriorate the initial adhesion between the metal-coated polyimide resin film and the metal layer and has high adhesion after aging at 150° C. for 168 hours.

[Solution] A metal-coated polyimide resin substrate in which a barrier layer is formed by a wet process after performing surface modification to one surface or both surfaces of a polyimide resin film by a wet process or a dry process or a combination thereof, a seed layer is thereafter formed by a wet process or a dry process, and a conductive film is formed on a surface layer thereof by a wet process; wherein, at the peeling surface on the conductive film layer side after the metal-coated polyimide resin substrate is subject to a 90-degree peel test, the thickness of a mixed layer of polyimide residue and barrier metal layer residue according to in-depth profiling with a time-of-flight secondary ion mass spectrometer (TOF-SIMS) is 2.60 nm or less based on Si sputter rate conversion, and peel strength retention after an aging test at 150° C. for 168 hours (peel strength after aging at 150° C. for 168 hours/initial peel strength) is 50% or higher.

Provided is a polarizer which is configured of a cellulose acylate film and a polarizing element and in which improved adhesion between the film and the polarizing element has been attained with a photocurable adhesive to inhibit the degree of polarization from decreasing. Also provided is a liquid-crystal display device equipped with the polarizer. The polarizer is a polarizer obtained by laminating a cellulose acylate film that comprises a cellulose acylate having a degree of substitution with an acyl group in the range of 2.0-2.5 and a glass transition temperature lowering agent to one surface of a polarizing element using a photocurable adhesive, and is characterized in that when the amount of the glass transition temperature lowering agent present in the laminating-side surface of the cellulose acylate film and the amount of the agent present in the other surface of the film, the amounts being determined using time-of-flight secondary-ion mass spectroscopy (TOF-SIMS), are expressed by dA and dB, respectively, then the value of r represented by equation (1) is 1.1 or larger. Equation (1) r = dA/dB

A soft magnetic film and a method of manufacturing the soft magnetic film are provided. The soft magnetic film is plated with Fe and Ni, Fe and Co, or Fe, Ni and Co. A ratio Cl/Fe of ion strengths between negative-charged Fe and Cl and a ratio S/Fe of ion strengths between negative-charged Fe and S are less than about 10 in measurement by a time-of-flight secondary ion mass spectrometry.

The present invention relates to an active substance, an electrode, a secondary battery, a battery pack, and an electric vehicle. The secondary battery comprises a positive electrode; a negative electrode comprising the active substance; and electrolyte, wherein the active substance comprises a central portion, and a covering portion which is located on the surface of the central portion, the central portion comprises silicon (Si) as a component, the covering portion comprises carbon (C) and hydrogen (H) as components, and kation analysis is carried out using a time of flight second ion mass spectroscopy method to detect one or more kinds of kation represented by CxHy (wherein x and y satisfy 2<=x<=6, and 3<=y<=9).