Ion analyzer

Claim 2

An ion analyzer comprising an electrode (16) having a surface onto which a liquid containing ions is introduced, means (30) for supplying gas so that said liquid is moved while being held between said electrode and said gas, means for generating an electric field so that said ions are extracted, and means (12) for detecting the ions extracted.

Claim 3

An ion analyzer comprising a column (5) for separating a sample liquid by an eluent flowing therethrough, means for extracting ions in an effluent from said column and means (12) for detecting the extracted ions, said means for extracting ions comprising an electrode (16) having a surface onto which said effluent is introduced, means (30) for supplying gas so that said effluent is moved while being held between said electrode and said gas, and means for generating an electric field so that said ions contained in said effluent moved while being held between said gas and said electrode can be extracted.

Claim 4

An ion analyzer comprising a column (5) for separating a sample liquid by an eluent flowing therethrough, means for extracting ions in an effluent from said column and means (12) for detecting the extracted ions, said means for extracting ions comprising an electrode (16) having a surface onto which said effluent is introduced, means (30) for supplying gas so that said effluent is moved while being held between said electrode and said gas, and means for generating an electric field so that said ions contained in said effluent moved while being held between said gas and said electrode can be extracted.

Claim 5

The ion analyzer of claim 1 or 2, further including means (11) for mass-separating the extracted ions, wherein said de­tecting means (12) detects said mass-separated ions.

Claim 6

An ion extractor comprising an electrode (16), means for introducing a liquid containing ions onto the surface of said electrode, means (30) for supplying gas so that said liquid is moved while being held between said electrode (16) and said gas, and means for generating an electric field so that said ions are extracted.

Claim 7

An ion extractor comprising an electrode (16), means for introducing a liquid containing ions onto the surface of said electrode, means (30) for supplying gas so that said liquid is moved while being held between said electrode (16) and said gas, and means for generating an electric field so that said ions are extracted.

Claim 8

An ion extractor comprising a needle-like electrode (16), a first tube (19) disposed so as to form a first gap around said needle-like electrode (16), a second tube (20) disposed so as to form a second gap around said first tube (19), means for introducing a liquid containing ions into said first gap, means (30) for supplying gas into said second gap, an ion extracting electrode (8) disposed opposite to said needle-like electrode (16), and means for forming an electric field between said needle-like electrode (16) and said extracting electrode (8) so that said ions are extracted, said needle-like electrode (16) projecting from said first tube (19) so that said liquid is moved while being held between said gas and said needle-like electrode (16) after it has passed through said first gap.

Claim 9

An ion extractor comprising a needle-like electrode (16), a first tube (19) disposed so as to form a first gap around said needle-like electrode (16), a second tube (20) disposed so as to form a second gap around said first tube (19), means for introducing a liquid containing ions into said first gap, means (30) for supplying gas into said second gap, an ion extracting electrode (8) disposed opposite to said needle-like electrode (16), and means for forming an electric field between said needle-like electrode (16) and said extracting electrode (8) so that said ions are extracted, said needle-like electrode (16) projecting from said first tube (19) so that said liquid is moved while being held between said gas and said needle-like electrode (16) after it has passed through said first gap.

Claim 10

The ion extractor of claim 4 or 5, wherein said gas supply means (30) comprises means for setting the flow rate of said gas so that the speed of movement of said liquid at the surface contacting with said gas is higher than that of said liquid at the surface contacting with the surface of said electrode (16).

Claim 11

The ion extractor of any one of claims 4 to 6, wherein said electric field forming means includes means (7) for ap­plying a voltage to said electrode (16).

Claim 12

The ion extractor of any one of claims 5 to 7, further comprising means for adjusting the length of projection of said needle-like electrode (16) from said first tube (19).

Claim 13

The ion extractor of any one of claims 4 to 8, further comprising means for heating said liquid.

Claim 14

An ion extracting electrode apparatus comprising a needle-like electrode (16), a first tube (19) disposed so as to form a first gap around said needle-like electrode (16) and a second tube (20) disposed so as to form a second gap around said first gap into which gas is supplied, said needle-like electrode (16) projecting from said first tube (19).

Claim 15

An ion extracting electrode apparatus comprising a needle-like electrode (16), a first tube (19) disposed so as to form a first gap around said needle-like electrode (16) and a second tube (20) disposed so as to form a second gap around said first gap into which gas is supplied, said needle-like electrode (16) projecting from said first tube (19).

Claim 16

The apparatus of claim 10, wherein the amount of projec­tion of said needle-like electrode (16) from said first tube (19) can be adjusted.