CN205300949U - Sample extraction element of shooting residual - Google Patents
Sample extraction element of shooting residual Download PDFInfo
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- CN205300949U CN205300949U CN201620035411.9U CN201620035411U CN205300949U CN 205300949 U CN205300949 U CN 205300949U CN 201620035411 U CN201620035411 U CN 201620035411U CN 205300949 U CN205300949 U CN 205300949U
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Abstract
The utility model provides a shooting residual sample extraction element includes: set up cylinder sampling tube and round platform in the cavity of sampling tube outer tube and round platform lid constitution, wherein: the end of cylinder sampling tube is equipped with the parcel has polyurethane or textile sampling probe, and the other end is equipped with sealed fracture head, and this device can realize that the sample of shooting the residual effectively extracts fast, can have very high absorption and enrichment to the shooting residual, and simultaneously equitable save residual is not polluted by surrounding material, provides basic for the accurate separation and the detection and analysis of shooting residual. This device has easy operation, quick, the degree of accuracy and the high advantage of repeatability.
Description
Technical field
The utility model relates to the extraction material of a kind of chemical residue and detection technique, specifically a kind of device extracting test sample for shooting remnants sample and application.
Background technology
Shooting remnants as with bullet, shell case from the trace substance discharged in gun, ejaculator, suspect can be attached to objectively, penetrated the position such as object and gun. Shooting remnants has universal existence, potentiality, is difficult to the features such as destructiveness, and suspect is difficult to thoroughly eliminate the left shooting vestige because shooting remnants exists. By the analysis to shooting remnants, it is possible to provide a lot of effective information for case, as found out suspect, distinguish and commit suiside and homicide, estimate shooting distance etc. So being very important to accurately checking and identify the safety to the country and people of shooting remnants.
Have been recognized that shooting remnants can be divided into two class materials in the world: inorganic residue and organic residue. Inorganic residue comes from the fire in a stove before fuel is added and the nitrate of propellant powder, nitrite and metallic particles. In U.S., European and Chinese, in the touchstone of shooting remnants and technical specification, all define the main qualitative mode using scanning electron microscope Momentum profiles analytic process (SEM/EDX) of inorganic residue as shooting remnants. In China, if detection contains the spheroidal particle of tri-kinds of elements of Sb, Sn, S or the spheroidal particle of five kinds of elements of Sb, Sn, S, Ba, Pb in sample, it is possible to draw the conclusion having detection shooting remnants in sample.
And the detection of organic residue is usually and carries out as auxiliary and the means of supplementing out economy, organic analysis typically requires spectral instrument or chromatography-mass spectroscopy instrument is analyzed detection. in recent years along with unleaded both at home and abroad, the advocating and using of nontoxic ammunition, the classical solution of inorganic residue is challenged, the value of the detection of organic residue also displays gradually, because organic residue both also is from propellant powder and the fire in a stove before fuel is added, specifically include that explosive, such as nitrocellulose (NC), nitroglycerine (NG), hexogen (RDX) etc., sensitizer: such as trinitrotoluene (TNT), too peace (PETN) etc., stabilizer: such as diphenylamines (DPA), methylcellulose (MC) etc., inhibitor: as and Methylnitrobenzene (2, 4-DNT), nitroguanidine (NQ) etc., plasticiser: such as diethyl phthalate (DEP), dimethyl phthalate (DMP), also include a series of catabolite.The detection of organic residue is possible not only to provide valuable into the detection of inorganic residue and supplements, it is also possible to detect in problematic situation in inorganic residue, case plays the effect of key.
Realize the accurate detection of inorganic residue and organic residue in shooting remnants, it is accomplished by before Instrumental Analysis and realizes effective extraction of inorganic residue and organic residue in sample, according to bibliographical information both domestic and external, current standard extraction methods is to take residue with conduction is gluing, then inorganic residual is detected, but to the extraction of organic residue but without standard, some experiments also major part adopts cotton swab or mixes some organic solvents and extract.
Utility model content
This utility model is for prior art above shortcomings, a kind of shooting remnants sample extraction device is proposed, the sample that can realize shooting remnants quickly effectively extracts, shooting remnants can there be significantly high absorption and enrichment, reasonably preserving residue not polluted by surrounding material, the analysis that is precisely separating and detects for shooting remnants provides basis simultaneously. This device has simple to operate, quick, accuracy and the high advantage of repeatability.
This utility model is achieved through the following technical solutions:
This utility model includes: be arranged at the cylinder probe tube in the cavity of probe tube trocar sheath and round platform lid composition and round platform, and wherein: the end of cylinder probe tube is provided with the sampling head being enclosed with polyurethane or cotton textiles, the other end is provided with sealing fracture head.
Quantitative acetone liquid is filled in described probe tube trocar sheath.
Described cylinder probe tube is hollow-core construction, and described sampling head is provided with the apopore being connected with cylinder probe tube.
Described thief rod trocar sheath is that brown glass material is made.
The device extracted for shooting remnants injects quantitative acetone in hollow circuit cylinder bar, then seal, sampling head to be used glues when taking residue, firmly fracture head is fractureed, after air enters, acetone can flow in polyurethane, then just can gather material evidence immediately, after being collected, seal with thief rod overcoat immediately.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of shooting remnants sampler;
In figure: a is round platform lid schematic diagram; B is round platform schematic diagram; C is probe tube trocar sheath schematic diagram; D is cylinder probe tube schematic diagram;
Fig. 2 is the structural representation of shooting remnants sampler;
Fig. 3 is the profile of shooting remnants sampler;
In figure: a is decomposing schematic representation; B is combination schematic diagram; 1 round platform lid, 2 round platforms, 3 cylinder probe tubes, 4 probe tube trocar sheaths, 5 sampling heads, 6 sealing fracture head, 7 apopores.
Detailed description of the invention
As shown in FIG. 1 to 3, this extraction element includes: be arranged at the cylinder probe tube 3 in the cavity of probe tube trocar sheath 4 and round platform lid 1 composition and round platform 2, wherein: the end of cylinder probe tube 3 is provided with the sampling head 5 having wrapped up polyurethane, the other end is provided with sealing fracture 6.
Quantitative acetone liquid is filled in described probe tube trocar sheath 4.
Described cylinder probe tube 3 is hollow-core construction, and described sampling head 5 is provided with the apopore 7 being connected with cylinder probe tube 3.
In use procedure, it is possible to be first turned on round platform lid 1, then take out round platform 2, with the conducting resinl on round platform 2 surface, doubt region is adhered to, after terminating, round platform 2 is put back to cylinder probe tube 3 surface, then round platform lid 1 is built, Laboratory Instruments analysis to be taken back.Then probe tube trocar sheath 4 is opened, cylinder probe tube 3 is extracted, with hands, the breaking groove of cylinder probe tube 3 is broken disconnected, acetone is threaded a pipe in running through under atmospheric pressure effect and apopore enters in polyurethane cotton, then, rifle and other doubtful body surface can be carried out wiping by user, after wiping cylinder probe tube 3 is loaded in probe tube trocar sheath 4 seal preserve, Laboratory Instruments analysis to be taken back.
It can be carried out local directed complete set by those skilled in the art in a different manner by above-mentioned being embodied as under the premise without departing substantially from this utility model principle and objective; protection domain of the present utility model is as the criterion with claims and is not limit by above-mentioned being embodied as, and each implementation within the scope of it is all by the constraint of this utility model.
Claims (4)
1. a shooting remnants sample extraction device, it is characterized in that, including: being arranged at the cylinder probe tube in the cavity of probe tube trocar sheath and round platform lid composition and round platform, wherein: the end of cylinder probe tube is provided with the sampling head being enclosed with polyurethane or cotton textiles, the other end is provided with sealing fracture head.
2. shooting remnants sample extraction device according to claim 1, is characterized in that, fills acetone liquid in described probe tube trocar sheath.
3. shooting remnants sample extraction device according to claim 1, is characterized in that, described cylinder probe tube is hollow-core construction, and described sampling head is provided with the apopore being connected with cylinder probe tube.
4. shooting remnants sample extraction device according to claim 1, is characterized in that, described thief rod trocar sheath is that brown glass material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035411.9U CN205300949U (en) | 2016-01-15 | 2016-01-15 | Sample extraction element of shooting residual |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620035411.9U CN205300949U (en) | 2016-01-15 | 2016-01-15 | Sample extraction element of shooting residual |
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| CN205300949U true CN205300949U (en) | 2016-06-08 |
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| CN201620035411.9U Active CN205300949U (en) | 2016-01-15 | 2016-01-15 | Sample extraction element of shooting residual |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782460A (en) * | 2019-01-22 | 2019-05-21 | 深圳市华星光电半导体显示技术有限公司 | The detection method of liquid crystal display panel |
| CN110146322A (en) * | 2019-06-12 | 2019-08-20 | 公安部交通管理科学研究所 | The method for extraction and purification and extracting tool of rubber residue in a kind of tire footprint |
| CN112557431A (en) * | 2020-12-25 | 2021-03-26 | 上海富乐德智能科技发展有限公司 | Nondestructive detection method for pollutant components on surface of part |
-
2016
- 2016-01-15 CN CN201620035411.9U patent/CN205300949U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782460A (en) * | 2019-01-22 | 2019-05-21 | 深圳市华星光电半导体显示技术有限公司 | The detection method of liquid crystal display panel |
| WO2020151105A1 (en) * | 2019-01-22 | 2020-07-30 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal panel detection method |
| CN110146322A (en) * | 2019-06-12 | 2019-08-20 | 公安部交通管理科学研究所 | The method for extraction and purification and extracting tool of rubber residue in a kind of tire footprint |
| CN110146322B (en) * | 2019-06-12 | 2024-05-10 | 公安部交通管理科学研究所 | Extraction and purification method and extraction tool for rubber residues in tire marks |
| CN112557431A (en) * | 2020-12-25 | 2021-03-26 | 上海富乐德智能科技发展有限公司 | Nondestructive detection method for pollutant components on surface of part |
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| GR01 | Patent grant |