[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Ogawa et al., 1996 - Google Patents

Highly sensitive determination of aromatic molecules in droplets by the surface laser two-photon ionization

Ogawa et al., 1996

View PDF
Document ID
9519253986495811945
Author
Ogawa T
Sumi S
Inoue T
Publication year
Publication venue
Analytical sciences

External Links

Snippet

The laser two-photon ionization technique has been applied to a liquid droplet (100–3 μl) in order to determine the analytical potential of this technique for a small amount of sample. Surface photoionization was effective to remove the leakage current and allowed use of …
Continue reading at www.jstage.jst.go.jp (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/447—Systems using electrophoresis
    • G01N27/44704—Details; Accessories
    • G01N27/44717—Arrangements for investigating the separated zones, e.g. localising zones
    • G01N27/44721—Arrangements for investigating the separated zones, e.g. localising zones by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/447—Systems using electrophoresis
    • G01N27/44704—Details; Accessories
    • G01N27/44743—Introducing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/42—Measuring disposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
    • G01N27/423—Coulometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/62—Detectors specially adapted therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the ionisation of gases; by investigating electric discharges, e.g. emission of cathode
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/90—Plate chromatography, e.g. thin layer or paper chromatography
    • G01N30/94—Development
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence

Similar Documents

Publication Publication Date Title
US7534338B2 (en) Methods and devices for concentration and purification of analytes for chemical analysis including matrix-assisted laser desorption/ionization(MALDI) mass spectrometry (MS)
Wallingford et al. Capillary zone electrophoresis with electrochemical detection in 12.7. mu. m diameter columns
Drossman et al. High-speed separations of DNA sequencing reactions by capillary electrophoresis
Nie et al. Ultrasensitive fluorescence detection of polycyclic aromatic hydrocarbons in capillary electrophoresis
Yamini et al. Electrical field-induced extraction and separation techniques: promising trends in analytical chemistry–a review
US7615762B2 (en) Method and apparatus for low quantity detection of bioparticles in small sample volumes
US6504149B2 (en) Apparatus and method for desolvating and focussing ions for introduction into a mass spectrometer
US20050139470A1 (en) Device for isoelectric focussing
JPH02245655A (en) Electrophoresis system
Gilman et al. Electrogenerated chemiluminescence detection for capillary electrophoresis
Lin et al. A poly-methylmethacrylate electrophoresis microchip with sample preconcentrator
JP2007266007A (en) Method and apparatus for producing discrete particle
US9595430B2 (en) Laser desorption ionization mass spectrometry using a particulate separation bed
US6752914B1 (en) Capillary electrophoresis device
Morishima et al. Toward sol‐gel electrochromatographic separations on a chip
Ogawa et al. Highly sensitive determination of aromatic molecules in droplets by the surface laser two-photon ionization
Kuo et al. Silica nanoparticles for separation of biologically active amines by capillary electrophoresis with laser‐induced native fluorescence detection
Waterval et al. Robust and cost‐effective capillary electrophoresis‐mass spectrometry interfaces suitable for combination with on‐line analyte preconcentration
Amankwa et al. Fluorescence detection in capillary electrophoresis
JPH02168154A (en) Detector of component in sample
Ogawa et al. Highly sensitive detection of pyrene in a flow jet by surface laser two-photon ionization
Imasaka et al. Determination of anthracene derivatives by cyclodextrin-modified micellar electrokinetic chromatography combined with helium—cadmium laser fluorimetry
Zhou et al. Use of TiO 2 nanotube arrays as the adsorbents for preconcentration of triazine herbicides in environmental water samples prior to determination using high performance liquid chromatography
Chen et al. Solvents effects in determination of anthracene on solution surfaces by laser two-photon ionization technique
Ogawa et al. Laser Two-Photon Ionization of 4, 4'''-Bis [(2-butyloctyl) oxy]-p-quaterphenyl on a Platinum Surface in Ambient Air Highly Sensitive Detection of Surface Molecules