CN207937248U - High load sulfhydryl paper is enriched with the easy device of trace lead in water - Google Patents

Abstract

The utility model is related to the easy devices that a kind of high load sulfhydryl paper is enriched with trace lead in water, including funnel, sulfhydryl paper fixator and liquid waste collector, the funnel is coaxially placed in liquid waste collector top, the lower branch line outer rim of funnel is coaxially fixedly mounted with sulfhydryl paper fixator, high load sulfhydryl paper is embedded in sulfhydryl paper fixator, sulfhydryl paper fixator is connected through a screw thread locking with the funnel branch pipe with silica gel sheath；The limit chuck upper inside wall is formed with and the matched internal thread of silica gel sheath external screw thread, radially-inwardly integrally make spacing ring in limit chuck lower end, tail pipe upper end is radially outward integrally formed with locating ring, locating ring is coaxially inlaid on spacing ring, and sulfhydryl paper is coaxially embedded between funnel branch pipe lower end and locating ring；A silica gel eyelet is co-axially mounted between sulfhydryl paper and locating ring.The utility model clamps high load sulfhydryl paper, simple in structure, simple operation, effectively enrichment absorption trace lead in water using firm, sealing.

Description

High load sulfhydryl paper is enriched with the easy device of trace lead in water

Technical field

The utility model belongs to separation and concentration field, is related to sulfhydryl paper concentration and separation technology, especially a kind of high load mercapto Base paper is enriched with the easy device of trace lead in water.

Background technology

Lead is the larger one kind of heavy metal pollution Poisoning, once would become hard to exclude into human body, can cause the slow of human body Property poisoning.To the blood lead load of children, neurobehavioral function studies have shown that the children for being exposed to leaded environment for a long time have instead Should slowly, vision it is blunt.The especially exceeded food of long-term consumption lead content, water, beverage, influence children mental retardation quite big. The concentration of blood lead in children's body, often rises 10ug/100ml, and children's intelligence declines 6-8 points.So food, drinking water, irrigation use Lead concentration causes the extensive concern of worldwide organization in water, beverage, dairy products, is dropped to the lead control line in drinking water 0.01ug/ml, irrigation water 0.02ug/ml, beans 0.8mg/kg, fresh milk 0.05mg/kg.From the point of view of the concentration of control lead, lead It is very low very low in the concentration of water, food etc., no matter can not directly be measured with what assay method.In the urgent need to address asks Topic is how to be enriched with to lead such as water quality, food, to be suitble to the measurement of distinct methods.

At present to the enrichment method of lead in water, most common concentration method, absorption method, but these methods substantially improve lead Measurement sensitivity, but can't resolve selective problems, be only capable of with large-scale experiment room instrument for example atomic fluorescence, Atomic absorption, Oscilloscopic polarography is measured.Use better simply colorimetric method, photometry, it is necessary to carry out extraction and separation, hypertoxic potassium cyanide Masking interference, not only impair the health of tester in this way, more important is toxic extractant, hypertoxic potassium cyanide It post-processes complicated, secondary pollution can be brought to environment.

Enrichment and separation with thiohydroxy cotton technology in recent years brings great convenience to the measurement of lead, is grafted on cotton by sulfydryl, right The effective adsorption and enrichment of heavy metal, then eluted with various concentration acid, each heavy metal species can be made to efficiently separate, accomplished sensitive Degree, selectivity are androgynous to be risen, and is to measure the most perfect method of trace lead in water at present.But process is complex, needs sulfydryl The preparation of cotton, the filling of sulfhydryl cotton pipe, effective absorption of heavy metal, the processes such as elution of different heavy metals.It is maximum the disadvantage is that After Sulfhydryl Cotton absorption, also eluted with a certain amount of acid solution, the washing of high purity water, the process reduces Sulfhydryl Cotton again Enrichment times reduce the sensitivity for measuring lead.So studying a kind of enrichment of high magnification, highly selective measuring, do not have to extraction, no With adding the device of the novel simple enriched lead of screening agent extremely urgent.

By retrieval, it is found that specific disclosure is as follows as follows with the application relevant patent document：

1, a kind of water sampling and enrichment and separation with thiohydroxy cotton device (CN86100804), it is by manual negative pressure pump, band weight It hammers into shape, have graduated water intaking conduit, dual-purpose interchangeable filter, water butt and the pipe composition equipped with sulfhydryl cotton fiber.The hair Bright is, by band weight, the graduated water intaking conduit of tool, to aspirate the water sample to be measured of different depth, water sample using with manual negative pressure pump It is filtered by filter, then passes through the sulfhydryl cotton pipe by sulfhydryl cotton fiber for pregnant solution, you can wait for a variety of traces in water sample Enrichment of element is surveyed, and is separated with other elements.Need elution that could be detected again after the sulfhydryl cotton fiber filtering, and All moisture are not accounted for when filtering and fully pass through the sulfhydryl cotton fiber, and detection data is not very accurate.

2, the device (CN202449900U) of a kind of novel enrichment and separating metal ions in sewage, including filling ion are handed over Change column, container, high-voltage DC power supply, inert electrode plate, conducting wire and the ammeter of separating medium；The column Both ends be separately connected the container, sewage sample and high concentration background ions solution are separately added into the container, it is described lazy Property electrode plate is inserted into respectively in the container, and the container equipped with sewage sample connects the high-voltage DC power supply by conducting wire Anode, the container equipped with high concentration background ions solution connects the cathode of the high-voltage DC power supply by conducting wire, It connects in entire circuit the ammeter.The program is using electrolysis and modified electrode concentration method.

By the comparison of technical characteristic, patent document disclosed above is clamped with the utility model using firm, sealing high negative It carries sulfhydryl paper technical pattern to differ, does not interfere with the creativeness and novelty of the present utility model application.

Utility model content

It is a kind of simple in structure, swift to operate the purpose of the utility model is to overcome in place of the deficiencies in the prior art, providing A kind of high load sulfhydryl paper enrichment trace lead in water easy device.

The utility model solves its technical problem and following technical scheme is taken to realize：

A kind of easy device of high load sulfhydryl paper enrichment trace lead in water, including funnel, sulfhydryl paper fixator and useless Collection, the funnel are coaxially placed in liquid waste collector top, and the lower branch line outer rim of funnel is coaxially fixedly mounted with sulfhydryl paper fixator, Sulfhydryl paper is embedded in sulfhydryl paper fixator, sulfhydryl paper fixator is connected through a screw thread locking with the funnel branch pipe with silica gel sheath；

The funnel is cone-shaped glass funnel, and its underpart is integrally formed with branch pipe, and branch pipe nozzle is flat mouth, and branch pipe lower part is coaxial It is cased with silica gel sheath outside, the outer wall of silica gel sheath is formed with external screw thread；

The sulfhydryl paper fixator includes limit chuck, silica gel eyelet and tail pipe, and the limit chuck is hollow circuit cylinder Pipe, upper inside wall be formed with the matched internal thread of silica gel sheath external screw thread, the limit chuck lower end is radially-inwardly integrated Spacing ring is made, the internal diameter and outer diameter of the tail pipe are identical as branch pipe, and tail pipe upper end is radially outward integrally formed with locating ring, institute It states locating ring to be coaxially inlaid on spacing ring, tail pipe is connected to the lower end of funnel branch pipe by limit chuck, under funnel branch pipe Sulfhydryl paper is coaxially embedded between end and locating ring；A silica gel eyelet is co-axially mounted between sulfhydryl paper and locating ring.

Moreover, the waste collection bottle is with graduated wide mouthed Erlenmeyer bottle, bottleneck side is formed with a protrusion mouth.

Moreover, the lower end water outlet of the tail pipe is angle.

Moreover, the material of the limit chuck is vinyon material.

The advantages of the utility model and good effect are：

The utility model clamps the structure of high load sulfhydryl paper using firm, sealing, the simple structure, simple operation, just In carrying, it is enriched with No leakage, speed is fast, and enrichment times are up to 500 times, and the rate of filtration is stablized, and suction can not only be effectively enriched with Attached trace lead in water, and can be tested without elution, detection sensitivity is improved, can be time saving and energy saving with follow-on test, Improve work efficiency height.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the fragmentary sectional view of the utility model.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings and by specific embodiment, and following embodiment is only retouched The property stated, it is not restrictive, protection scope of this utility model cannot be limited by this.

A kind of easy device of high load sulfhydryl paper enrichment trace lead in water, including funnel 1, sulfhydryl paper fixator 2 and Liquid waste collector 3, the funnel are coaxially placed in liquid waste collector top, and the lower branch line outer rim of funnel is coaxially fixedly mounted with sulfhydryl paper and fixes Device, high load sulfhydryl paper 6 is embedded in sulfhydryl paper fixator, and sulfhydryl paper fixator passes through spiral shell with the funnel branch pipe with silica gel sheath 5 Line connection locking, to closely clamp high load sulfhydryl paper.

The funnel is cone-shaped glass funnel, and its underpart is integrally formed with branch pipe 4, and branch pipe nozzle is flat mouth, and branch pipe lower part is same Outer shaft sleeve has silica gel sheath, and the lower port of silica gel sheath is flushed with branch infratubal port, and the outer wall of the silica gel sheath is formed with external screw thread.

The sulfhydryl paper fixator includes limit chuck 9, silica gel eyelet 7 and tail pipe 10, and the limit chuck is hollow Cylindrical tube, upper inside wall be formed with the matched internal thread of silica gel sheath external screw thread, the limit chuck lower end is radially-inwardly It is integrally formed with spacing ring, the internal diameter and outer diameter of the tail pipe are identical as branch pipe, and tail pipe upper end is radially outward integrally formed with positioning Ring 8, the locating ring are coaxially inlaid on spacing ring, and tail pipe is connected to the lower end of funnel branch pipe by limit chuck, in funnel It is coaxially embedded in sulfhydryl paper between branch pipe lower end and locating ring, in order to increase the stability of sulfhydryl paper, is also coaxially pressed outside silica gel sheath On sulfhydryl paper.

In order to improve the leakproofness between the tail pipe in sulfhydryl paper fixator and the funnel branch pipe with silica gel sheath, in sulfydryl A silica gel eyelet is co-axially mounted between paper and locating ring, the inside and outside diameter of the silica gel eyelet is identical as locating ring, not only carries It is high to clamp the stability of high load sulfhydryl paper, and ensure that the connection sealing between branch pipe and tail pipe, prevent water to be surveyed Sample oozes when by high load sulfhydryl paper to be extended down at connection gap, to influence testing result.

The waste collection bottle is one with graduated wide mouthed Erlenmeyer bottle, and bottleneck side is formed with a protrusion mouth, both just In filtered liquid in dumping bottle, while when filtering liquid, as drain, keep air pressure constant, to remain normal The rate of filtration.

The sulfhydryl paper is made of following steps：

1, prepared by grafting liquid

Mercaptoethanol 100ml is added in beaker, acetic anhydride 60ml, glacial acetic acid 40ml shake up, and 15 drops are added dropwise when shaking The concentrated sulfuric acid shakes up, and is cooled to room temperature.

2, prepared by filter paper

Middling speed qualitative filter paper is selected, 20x4cm strips are cut into.

3, sulfydryl is grafted

The filter paper 30 that will 2. prepare impregnates 24 hours in even branch liquid.

It takes out and shakes washing 10 minutes in distilled water, further take out to be placed in another clean distilled water and shake 10 points of washing Clock.Taking-up, which is protected from light, dries.It is toasted under infrared lamp when necessary.

4, it shapes

By the filter paper after drying, the disk that 13-14mm is cut into calibrator is spare.

The utility model specific operation process：

1, diameter disk sulfhydryl paper big as silica gel eyelet is put on the silica gel eyelet in sulfhydryl paper fixator, it will Sulfhydryl paper fixator is connected through a screw thread locking with the funnel branch pipe with silica gel sheath.

2, the funnel for being locked with sulfhydryl paper fixator is placed on waste collection bottle.

3, it is intended to survey water sample 500ml, pours into funnel, filtering absorption.Water surface elevation wants substantially stationary, generally away from funnel upper edge 10mm。

4, water sample to be surveyed all by sulfhydryl paper fixator after, stand 5min.

5, sulfhydryl paper fixator is removed, sulfhydryl paper is taken out with clip, is placed on ordinary filter paper and dries.

6, color developing agent is dripped on the high load sulfhydryl paper dried, after colour developing, is compareed with Standard colour board, you can measure Lead concentration in water sample.

Although disclosing the embodiments of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be with Understand：It is not departing from the utility model and spirit and scope of the appended claims, various substitutions, changes and modifications are all can Can, therefore, the scope of the utility model is not limited to embodiment and attached drawing disclosure of that.

Claims (4)

1. a kind of easy device of high load sulfhydryl paper enrichment trace lead in water, it is characterised in that：It is fixed including funnel, sulfhydryl paper Device and liquid waste collector, the funnel are coaxially placed in liquid waste collector top, and the lower branch line outer rim of funnel is coaxially fixedly mounted with sulfydryl Paper fixator, sulfhydryl paper is embedded in sulfhydryl paper fixator, and sulfhydryl paper fixator passes through screw thread with the funnel branch pipe with silica gel sheath Connection locking；

The funnel is cone-shaped glass funnel, and its underpart is integrally formed with branch pipe, and branch pipe nozzle is flat mouth, the same outer shaft sleeve in branch pipe lower part There are silica gel sheath, the outer wall of silica gel sheath to be formed with external screw thread；

The sulfhydryl paper fixator includes limit chuck, silica gel eyelet and tail pipe, and the limit chuck is hollow cylindrical tube, Upper inside wall is formed with radially-inwardly integrally makes limit with the matched internal thread of silica gel sheath external screw thread, the limit chuck lower end Position ring, the internal diameter and outer diameter of the tail pipe are identical as branch pipe, and tail pipe upper end is radially outward integrally formed with locating ring, the positioning Ring is coaxially inlaid on spacing ring, and tail pipe is connected to the lower end of funnel branch pipe by limit chuck, funnel branch pipe lower end with Sulfhydryl paper is coaxially embedded between locating ring；A silica gel eyelet is co-axially mounted between sulfhydryl paper and locating ring.

2. the easy device of high load sulfhydryl paper enrichment trace lead in water according to claim 1, it is characterised in that：It is described Waste collection bottle is with graduated wide mouthed Erlenmeyer bottle, and bottleneck side is formed with a protrusion mouth.

3. the easy device of high load sulfhydryl paper enrichment trace lead in water according to claim 1, it is characterised in that：It is described The lower end water outlet of tail pipe is angle.

4. the easy device of high load sulfhydryl paper enrichment trace lead in water according to claim 1, it is characterised in that：It is described The material for limiting chuck is polyethylene material.