Flow analysis device and flow analysis method
AssigneeBl Tec K.K.
InventorYorihiro Kumazawa
Life of this patent
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Abstract
An object is to provide a flow analyzer which makes it possible to, without carrying out a complicated pretreatment, analyze mercury and analyze a sample containing mercury with accuracy equivalent to that of a conventional method. The object is attained by a flow analyzer including a sample introduction section (1), a reagent introduction section (3), and an analysis section (4), the flow analyzer further including: a heating section (5) that carries out a heat treatment with respect to a sample to which a reagent has been added; a cooling section (6) that cools the sample which has been subjected to the heat treatment and which is transferred inside a tube; and a gas-liquid separation section (7) that removes gas which is present in the tube after cooling.
Claims11
A flow analyzer comprising:
- a sample introduction section that is for introducing a sample into a tube;
- a reagent introduction section that adds a reagent to the sample which is transferred inside the tube;
- and
- an analysis section that quantitatively or qualitatively analyzes the sample to which the reagent has been added,
- said flow analyzer further comprising:
- a heating section that carries out a heat treatment with respect to the sample to which the reagent has been added;
- a cooling section that cools the sample which has been subjected to the heat treatment and which is transferred inside the tube;
- and
- a gas-liquid separation section that removes gas which is present in the tube after cooling,
- the heating section being a thermostatic bath which includes a heater, and a heating temperature in the heating section being set such that the sample has a temperature of not lower than 50° C. and not higher than 140° C.,
- the cooling section including a tube having a length of 0.5 m to 3 m, and the sample is transferred inside the tube of the cooling section,
- said flow analyzer being a device for measuring a concentration of a metal element including mercury.
A flow analysis method comprising:
- a sample introduction step of introducing a sample into a tube;
- a reagent addition step of adding a reagent to the sample which is transferred inside the tube;
- and
- an analysis step of quantitatively or qualitatively analyzing the sample to which the reagent has been added,
- said flow analysis method further comprising:
- a heating step of carrying out a heat treatment with respect to the sample to which the reagent has been added;
- a cooling step of cooling the sample which has been subjected to the heat treatment and which is transferred inside the tube;
- and
- a gas-liquid separation step of removing gas which is present in the tube after cooling,
- the heat treatment being carried out in a thermostatic bath which includes a heater, and a heating temperature in the heat treatment being set such that the sample has a temperature of not lower than 50° C. and not higher than 140° C.,
- in the cooling step, the sample which has been subjected to the heat treatment and which is transferred inside the tube being cooled while being transferred inside a tube of a cooling section which tube has a length of 0.5 m to 3 m, and
- said flow analysis method being a method for measuring a concentration of a metal element including mercury.
Dependencies are inferred from the claim text.