Agilent Technologies, Inc.

National Institute of Advanced Industrial Science and Technology

Hewlett-packard Company

Asahi Kogaku Kogyo Kabushiki Kaisha

Kenichi Sakata

Noriyuki Yamada

Hiroaki Tao

Hiroaki Takagi

Katsuhiko Nomura

Tetsuya Nakazato

Jun Kitamoto

Misao Ishikawa

Donald Lee Potter

James Charles Wirfel

Abelardo Gabriel Gutierre Martinez

Tatsuya Shibukawa

Yasuo Nihei

Shigeru Nawa

Ryotaro Midorikawa

A diagnostic system designed such that an aggregate of parameter combinations is stored, which is an aggregate of combinations of parameters consisting of a first parameter for determining the output of the high-frequency power source, a second parameter for determining the flow rate of the carrier gas in the aerosol, and a third parameter for determining the distance between the plasma torch and the interface, and which forms a specific array such that the measurement points corresponding to the respective combinations are lined up in order along the direction of length of an envelope that forms the end on the high-sensitivity side of a graph drawn as an aggregate of all measurement points on a sensitivity-oxide ion ratio graph, and a diagnostic measurement is performed with a specific diagnostic sample using the parameter value of each combination of the above-mentioned parameter combinations that form the aggregate such that the device properties can be confirmed from the position on the envelope on the sensitivity-oxide ion ratio graph of the actual measurement points corresponding to each combination.

Diagnosis and calibration system for ICP-MS apparatus

An inductively coupled plasma mass spectrometer comprises a control devicefor collectively controlling each of the following factors: the amount of liquid drops in the aerosol that is to be supplied to a plasma torch, the flow rate of carrier gasesA andB in this aerosol, the RF output of a high-frequency power source, and the distance Z between plasma torchand sampling interfaceand

Inductively coupled plasma mass spectrometer

To provide an inductively-coupled plasma torch capable of realizing a GC analysis or the like and a solution analysis by the same torch without removing a capillary tube, etc. The injector tube of the inductively-coupled plasma torch includes an outer injector tubefor introducing an atomized solution sample or the like into the inductively-coupled plasma, and an inner injector tubefor introducing gaseous molecules into the inductively-coupled plasma, housed in the outer injector tube as integrated and coaxially with it. The inner injector tube is able to convey make-up gas, and has a capillary tubefor conveying gaseous molecules and carrier gas together. For sample introduction in analyzing a gaseous sample, the inner injector tubeis used, and for sample introduction in analyzing an aerosol sample, the outer injector tubeis used.

Inductively-coupled plasma torch for simultaneous introduction of gaseous and liquid samples

An inductively-coupled plasma torch capable of holding a capillary tube coaxially with an injector tube and conveying make-up gas smoothly is provided. The inductively-coupled plasma torch of the present invention includes a guide which is held near the end portion of the injector tube, and has a through hole for holding the capillary tube coaxially with the injector tube, and means for conveying make-up gas.

Inductively-coupled plasma torch

Inductively coupled plasma mass spectrometer and method

An inductively coupled plasma mass spectroscopic includes a sample introduction section for nebulizing a sample solution; an ionization section, including a torch, for ionizing a nebula of a sample solution that is carried with a carrier gas; an interface section for sampling the ionized elements in the nebula at an atmospheric pressure and directing ions of the ionized elements into an ion lens section under a vacuum; the ion lens portion, containing an ion beam guide, for converging the ions which have passed through the interface section wherein at least one part of the ion lens portion is a multipole ion beam guide with at least four electrode rods; a mass selection portion, having a mass filter, for filtering the ions based on the measured mass number; and a detection section for counting filtered ions.

Inductively coupled plasma mass spectroscopic apparatus

A mount assembly having mounts which are provided on optical devices to be detachably attached to each other and which have mount surfaces which come into contact with each other when the optical devices are attached to each other through the mounts, wherein at least one of the mounts includes in combination a mount body which is made of synthetic resin and which is provided with the mount surface and a reinforcing metal ring member.

Mount assembly of optical devices

Growing community of inventors

Tokyo, Japan

Kenichi Sakata