CN201188069Y

CN201188069Y - Novel digestion tube

Info

Publication number: CN201188069Y
Application number: CNU2008200444074U
Authority: CN
Inventors: 罗一帆; 廖金才; 郝建冬; 许旋; 卓炜杰
Original assignee: South China Normal University
Current assignee: South China Normal University
Priority date: 2008-03-03
Filing date: 2008-03-03
Publication date: 2009-01-28
Anticipated expiration: 2018-03-03

Abstract

The utility model provides a novel digestion tube which is characterized in that the digestion tube is formed by an upper part and a lower part which are a digestion tube cover 1, a digestion pool 2, and the like. The digestion pool 2 is of a cylinder shape and is connected with the digestion tube cover 1 in a sealing way. The digestion tube cover 1 is composed of a steam condensing chamber 11, a cylindrical tube 14, a porous barrier 15, a steam buffer chamber 12 and a steam education tube 13. The novel digestion tube cannot cause digestion liquid and a sample to be evaporated to dryness without enough complete reaction, and the condensed liquid cannot flow out the digestion pool in a digestion process either. The utility model has the advantages of simple operation, favorable application effect, low manufacture cost and easy popularization.

Description

A kind of novel digestion tube

Technical field

The utility model relates to analytic sample pretreating device field, is specifically related to a kind of novel digestion tube.

Background technology

When measuring the metallic element of solid sample, all need to clear up processing, clear up the last machine that carries out sample after reaction is finished again and measure.Clearing up when handling, can guarantee sample is thoroughly reacted completely, can in the solution of fully sample transfer being measured to last machine, these factors can influence the accuracy of sample determination.Make and measure accurately, the whole process of clearing up processing is crucial, and wherein digestion tube has played decisive role.At present, clearing up the used digestion tube of solid sample is crucible basically, adds a lid, so just is easy to generate following problem: when digestion solution and sample are placed in the crucible, when the cover lid heating is cleared up, reaction is fierce, and gas is washed lid easily open, in addition along with the carrying out of clearing up reaction, steam in the crucible condenses on lid, liquid flows to the crucible outside by the slit between crucible and the lid, and the loss partially liq brings certain error to measurement result.Certainly, some improved digestion tubes are arranged also, such as having added some lids that cave in, reduce outside the liquid effuser, but reaction also can be washed lid open when fierce; Some has then added a gas outlet on lid, but can't solve intense reaction the time, liquid can be gone out from the gas outlet, loss part solution, the accuracy that influence is measured.

The utility model content

The purpose of this utility model is to overcome the deficiency that existing solid sample pretreatment technology exists, and a kind of novel digestion tube is provided, solved solid sample clear up reaction when fierce lid washed open, the liquid that condenses flows to problems such as pipe is outer.The utility model can not make digestion solution and sample also have little time complete reaction and do with regard to evaporation, and the liquid that condenses in the digestion process can not flow out digestion pool yet.

For achieving the above object, the utility model adopts following technical scheme:

A kind of novel digestion tube, described digestion tube are to be made of two large divisions about digestion tube lid 1 and the digestion pool 2 etc.

Above-mentioned digestion pool 2 is a right cylinder, is used for splendid attire digestion solution and sample, and its upper end closely links to each other with steam condensing chamber 11 lower ends that digestion tube covers in 1; Digestion pool 2 can be placed on heating in the well heater, so that digestion solution and sample complete reaction.

Above-mentioned digestion tube lid 1 is made of three parts such as steam condensing chamber 11, steam buffer chamber 12 and steam delivery lines 13.

Above-mentioned steam condensing chamber 11, its lower end is tightly connected by frosted mouth and digestion pool 2 upper ends, so that the steam of digestion pool 2 enters steam condensing chamber 11.

The middle part of above-mentioned steam condensing chamber 11 upper ends also has a cylindrical tube 14 and porous interlayer 15, and cylindrical tube 14 upper ends when steam enters cylindrical tube 14, are back to digestion pool 2 for sealing after condensing;

Above-mentioned porous interlayer 15 is positioned at steam condensing chamber 11 upper parts, is used for by the steam that do not condense and makes the opposing steam flow that condenses in steam buffer chamber 12 in the pond.

Above-mentioned steam buffer chamber 12, its lower end links to each other with steam condensing chamber 11, and upper end and steam delivery line 13 are used for buffering and condensing vapour.

Above-mentioned steam delivery line 13 is connected with steam buffer chamber 12, and from then on the steam that is used for not condensing at last discharge.

Compared with prior art, the present invention has following beneficial effect:

1, the utility model provides a kind of novel digestion tube, mainly solve the prior art solid sample clear up reaction when fierce lid washed open, the liquid that condenses flows to problems such as pipe is outer.

2, the design of a kind of novel digestion tube of the utility model, mainly be the digestion tube lid, form by steam condensing chamber, cylindrical tube, porous interlayer, steam buffer chamber and steam delivery line, just evaporation is dried can not make digestion solution and sample also have little time complete reaction, and the liquid that condenses in the digestion process can not flow out digestion pool yet.The utility model is simple to operate, result of use good, and cost of manufacture is low, be convenient to popularize.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

Structural representation of the present utility model is a kind of novel digestion tube as shown in Figure 1, comprises by two large divisions about digestion tube lid 1 and the digestion pool 2 etc. constituting.Digestion pool 2 is a right cylinder, is used for splendid attire digestion solution and sample, is the place of digestion solution and example reaction, and its upper end closely links to each other with steam condensing chamber 11 lower ends of digestion tube lid 1; Digestion pool 2 can be placed on heating in the well heater, so that digestion solution and sample complete reaction.Digestion tube lid 1 is made of three parts such as steam condensing chamber 11, steam buffer chamber 12 and steam delivery lines 13.Steam condensing chamber 11 lower ends are tightly connected by frosted mouth and digestion pool 2 upper ends, so that the steam that produces when the digestion solution of digestion pool 2 and example reaction enters steam condensing chamber 11; The middle part of steam condensing chamber 11 upper ends also has a cylindrical tube 14 and porous interlayer 15, and cylindrical tube 14 upper ends when steam enters cylindrical tube 14, can condense into liquid for sealing, directly are back to digestion pool 2; Another part steam can enter into steam buffer chamber 12 by cylindrical tube 14 outer porous interlayers 15, and this moment, a part of steam condensed into liquid, is back in the digestion pool 2 by porous interlayer 15, and the incoagulable steam of another part can be discharged from steam delivery line 13.This device, just evaporation is dried can not make digestion solution and sample also have little time complete reaction, and the liquid that condenses in the digestion process can not flow out digestion pool yet.

Method of operating: during use, load weighted sample and a certain amount of digestion solution are put into digestion pool 2 in advance, install digestion tube lid 1 and digestion pool 2, digestion tube is put into heated in the heater assembly; Along with temperature raises, digestion solution and sample react, the steam that produces rises to steam condensing chamber 11, part steam condenses in cylindrical tube 14, be back in the digestion pool 2, another part steam enters into steam buffer chamber 12 by porous interlayer 15, and some steam condenses into liquid again, be back to digestion pool 2 again, the steam that remainder does not condense is then discharged from steam delivery line 13.Circulation so constantly is till the digestion solution and sample complete reaction of digestion pool 2.

Claims

1, a kind of novel digestion tube is characterized in that comprising by digestion tube lid (1) and digestion pool (2) two large divisions's formation up and down.

2, a kind of novel digestion tube according to claim 1, it is characterized in that digestion pool (2) is a right cylinder, be used for splendid attire digestion solution and sample, its upper end closely links to each other with steam condensing chamber (11) lower end of digestion tube lid (1), and digestion pool (2) can be put into the well heater heating.

3, a kind of novel digestion tube according to claim 1 is characterized in that digestion tube lid (1) is made of steam condensing chamber (11), steam buffer chamber (12) and steam delivery line (13) three parts.

4, a kind of novel digestion tube according to claim 3, it is characterized in that steam condensing chamber (11) lower end is tightly connected by frosted mouth and digestion pool (2) upper end, the middle part of steam condensing chamber (11) upper end also has a cylindrical tube (14) and porous interlayer (15), cylindrical tube (14) upper end can make steam be back to digestion pool (2) with fixed attention for sealing; Part steam can condense by porous interlayer (15) and steam buffer chamber (12) and be back in the digestion pool (2), and the steam that does not condense can be discharged from steam delivery line (13).