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OwnerMasahiro Furuno, Masayoshi Ohira +4inventors
InventorsMasahiro Furuno, Masayoshi Ohira, Noritaka Furushima, Takayuki Hamada, Yuka Hiramatsu, Yukihiro Shintani
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For the purpose of extremely simply carrying out a pre-treatment such as sample preparation including extraction or concentration of a component of interest in a short time when performing a chromatographic analysis, it is intended that a column configured such that the inside of a narrow tube is provided with a porous body having open pore structures across the entire diameter of the tube and along an appropriate length of the tube is used and a sample containing a substance to be measured is allowed to pass through the column to retain and concentrate the substance to be measured within pores of the porous body in the column, and it is also intended to provide a method in which the above described process is conducted as a micro trap when carrying out the pre-treatment of the chromatographic analysis and then the removed substances are introduced into analytical means, a method in which a sample is introduced into a separation column after narrowing the sample band when introducing the sample into a liquid chromatograph, and a method for collecting atmospheric substances such as gaseous substances in the atmosphere within a tube by using a collection tube configured such that a porous body having open pore structures composed of inorganic, organic, or hybrid polymers is formed inside a portion or all of a blank tube, the tube having advantages that the tube can be inexpensively manufactured so as to have an extremely simple structure as the so-called passive sampler which does not use a power such as a motor, a multiplicity of the columns are simultaneously used to increase the number of measurements, the sample can be collected without variation, and resistance at the adsorbent is reduced because an air blowing pressure loss is low and a surface area is large as a collector.
A method for collecting and concentrating a sample, characterized in that a column configured such that the inside of a narrow tube is provided with a porous body having open pore structures across the entire diameter of the tube and along an appropriate length of the tube is used, a sample containing a substance to be measured is allowed to pass through the column to retain the substance to be measured within pores of the porous body in the column, and the substance to be measured is concentrated so as to narrow a sample band.
A method for collecting and concentrating a sample, characterized in that, as a pre-treatment for a chromatographic analysis, a column configured such that the inside of a narrow tube is provided with a porous body having open pore structures across the entire diameter of the tube and along an appropriate length of the tube is used as a micro trap, a sample containing a substance to be measured is allowed to pass through the column to retain the substance to be measured within pores of the porous body in the column, and the substance to be measured is concentrated and then removed from the porous body so as to be introduced into analytical means.
A device for collecting and concentrating a sample, characterized in that a column configured such that the inside of a narrow tube is provided with a porous body having open pore structures across the entire diameter of the tube and along an appropriate length of the tube is used as a micro trap, the column being equipped with a rapid heating device and communicating with sample injection means at one end thereof and with analytical means at the other end thereof.
A method for introducing a sample for use in liquid chromatography, characterized in that, before introducing the sample into a separation column of the liquid chromatography, the sample is retained and concentrated within an integral solid-phase extraction column (Monolithic Column) having multiple continuous pores or being a porous body and communicating with a sample introducing valve so as to form a narrow sample band, and then the sample is introduced into the separation column.
A device for introducing a sample for use in liquid chromatography, characterized in that a channel for introducing the sample into a separation column of the liquid chromatography communicates with an integral solid-phase extraction column having multiple continuous pores or being a porous body and communicating with a sample introducing valve.
A simple method for collecting atmospheric substances such as gaseous substances in an atmosphere within a tube, the method for collecting the atmospheric substances being characterized in that a collection tube configured such that a porous body having open pore structures composed of inorganic, organic, or hybrid polymers is formed within a blank tube is used.
A simple device for collecting atmospheric substances, characterized in that, a porous body having open pore structures composed of inorganic, organic, or hybrid polymers is formed within a certain portion of a blank tube as a collection tube, the certain portion being spaced apart by an appropriate distance from an end of the blank tube.
Dependencies are inferred from the claim text.