CN2697647Y - Residual pesticide purifying column - Google Patents
Residual pesticide purifying column Download PDFInfo
- Publication number
- CN2697647Y CN2697647Y CN 03261139 CN03261139U CN2697647Y CN 2697647 Y CN2697647 Y CN 2697647Y CN 03261139 CN03261139 CN 03261139 CN 03261139 U CN03261139 U CN 03261139U CN 2697647 Y CN2697647 Y CN 2697647Y
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- sieve plate
- purifying column
- fillers
- utility
- model
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- Treatment Of Liquids With Adsorbents In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a residual pesticide purifying column furnished with mixed fillers, which comprises an outer shell, an upper sieve plate, a lower sieve plate, and fillers; the upper sieve plate is positioned on the more upper part of the inner space of the outer shell of the purifying column, the lower sieve plate is positioned at the bottom of the outer shell of the purifying column, and fillers are positioned between the upper sieve plate and the lower sieve plate; particle-size range of the fillers is between 5 um and 100 um. The purifying column of the utility model, whose mechanism is taking advantage of the adsorption principle of the adsorbent fillers, activating the purifying column with activators at the same time; the purifying column flowed sample liquid can be dealt with washing agent and eluting agent to effectively remove unwanted substances and successfully take off analytical substances. The utility model has the advantages of wide application range, convenient operation, and accurate purifying results; the residual pesticide purifying column of the utility model can timely and rapidly purify test liquid extracted from foods and agricultural products; the time of the entire operating procedure is less than 20 minutes.
Description
Technical field
The utility model relates to a kind of chemical analysis process tower, relates in particular to a kind of residues of pesticides decontaminating column that mixed fillers is housed.
Background technology
The remains of pesticide that extracts from food is purified in order to detect food, the residual and banned substance of agricultural product Chinese traditional medicine in the down-stream better, it is simple to carry out the inner adsorption stuffing composition of various decontaminating columns that this purification adopts at present, as C18, C8, NH2, CN, Si, Al or organic polymer etc. are only arranged, this adsorption stuffing is suitable for a kind of or alanysis thing absorption, being not suitable for polycomponent handles, therefore the decontaminating column processing time of prior art is long, be of limited application, cost is higher.
The utility model content
The purpose of this utility model is exactly to overcome these defectives that exist in the prior art, and providing a kind of can independently use, and can adsorb and purify the residues of pesticides decontaminating column of multiclass medicine simultaneously.
For achieving the above object, the utility model provides a kind of like this residues of pesticides decontaminating column, it comprises shell, upper sieve plate, following sieve plate and mixed fillers, described upper sieve plate is positioned at decontaminating column enclosure space than top, following sieve plate is positioned at the decontaminating column outer casing bottom, mixed fillers is between described up and down sieve plate, described mixed fillers constitutes (percentage by weight) by following component: activated charcoal 1%-30%, zeyssatite 40%-80%, filtration aid 15%-45%, above-mentioned filler mixed packing, particle size range is between 5 μ m-100 μ m.
Further described plate thickness is 2mm, and sieve plate is the network with certain pore size, and physicochemical property are stable, can prevent that filler from coming out, and can stop big particle diameter material to enter again.
Further, described mixed fillers constitutes (percentage by weight) by following component: activated charcoal 5%, and zeyssatite 60%, filtration aid 35%, above-mentioned filler mixed packing, particle size range is between 5 μ m-100 μ m.
Further, described mixed fillers constitutes (percentage by weight) by following component: activated charcoal 10%, and zeyssatite 75%, filtration aid 15%, above-mentioned filler mixed packing, particle size range is between 5 μ m-100 μ m.
Further, described mixed fillers constitutes (percentage by weight) by following component: activated charcoal 20%, and zeyssatite 60%, filtration aid 20%, above-mentioned filler mixed packing, particle size range is between 5 μ m-100 μ m.
Further, described mixed fillers constitutes (percentage by weight) by following component: activated charcoal 25%, and zeyssatite 50%, filtration aid 25%, above-mentioned filler mixed packing, particle size range is between 5 μ m-100 μ m.
Adopt residues of pesticides decontaminating column of the present utility model, can in time purify whole operation process＜20min apace to the liquid to be checked that from food, extracts; And adopting different filler configurations, different washing agent and eluant, eluents to purify to Multiple Pesticides, good purification satisfies the instrumental analysis requirement, therefore, the utility model is applied widely, and is convenient to use, with low cost, subsequent detection result is accurate.
Description of drawings
Accompanying drawing is depicted as residues of pesticides decontaminating column synoptic diagram of the present utility model.
Embodiment
Accompanying drawing is depicted as the utility model residues of pesticides decontaminating column synoptic diagram, as shown in the drawing, decontaminating column monnolithic case syringe-like bucket, mixed fillers 4 between sieve plate constitutes by shell 1, upper sieve plate 2, following sieve plate 3 with about placing for it, mixed fillers constitutes (percentage by weight) by following component: activated charcoal 30%, zeyssatite 40%, filtration aid 30%, above-mentioned filler mixed packing, particle size range is between 5 μ m-60 μ m.The thickness of upper sieve plate 1 and following sieve plate 2 is 2mm, and the mesh-structured physicochemical property on it are stable, can rise and filter and iris action, prevents that filler from coming out, and stops big particle diameter material to enter.The mechanism of action of the utility model residues of pesticides decontaminating column is to utilize the suction-operated principle of mixed fillers (oppositely absorption, hydrogen bond, hydrophobic effect etc.), analyte is optionally adsorbed and keeps, after in purification process, utilizing cleaning solvent to remove impurity effectively, with suitable eluant, eluent analysans is eluted targetedly again.
Further describe the operating position of the utility model decontaminating column below in conjunction with the residual medicine of several farmings that often needs in the practical application to purify.
Embodiment 1
Thing to be checked: spinach (vegetables with green leaves)
The residual drug type of farming: organophosphorus insecticide
Decontaminating column filler configuration: filler 300mg, wherein activated charcoal 10% (granularity 100 μ m), zeyssatite 75% (granularity 60 μ m), filtration aid (Celite 545) 15% (granularity 10 μ m); Purification method comprises the following steps:
The first step, the preparation sample solution is with the analyte in 20ml normal hexane and acetone (weight ratio 50: 50) the mixed liquor extraction spinach;
In second step, the activating and purifying post flows through decontaminating column with 20ml normal hexane and acetone (weight ratio 70: 30) mixed liquor;
In the 3rd step, last sample adds to the spinach extract in the decontaminating column, blots under the negative pressure;
In the 4th step, wash-out flows through decontaminating column with 10ml normal hexane and methylene chloride (weight ratio 50: 50) mixed liquor, blots under the negative pressure, collects eluent.
The analyte recovery: 85～97%, relative standard deviation:＜5%.
Embodiment 2
Thing to be checked: pears (fruit)
The residual drug type of farming: organic chlorine agriculture chemicals
Preparation decontaminating column filler, filler 90mg, wherein activated charcoal 20% (granularity 100 μ m), zeyssatite 60% (granularity 60 μ m), filtration aid (Celite 545) 20% (granularity 10 μ m); Purification method comprises the following steps:
The first step, the preparation sample solution is with the analyte in 10ml water and acetone (weight ratio 40: 60) the mixed liquor extraction pears;
In second step, the activating and purifying post flows through decontaminating column with 10ml water and acetone (weight ratio 90: 10) mixed liquor;
In the 3rd step, last sample adds to the pears extract in the decontaminating column;
In the 4th step, washing is flow through decontaminating column with 10ml water and acetone (weight ratio 90: 10) mixed liquor, blots under the negative pressure;
In the 5th step, wash-out flows through decontaminating column with 10ml acetone, blots under the negative pressure, collects eluent.
The analyte recovery: 80～99%, relative standard deviation:＜6%.
Embodiment 3
Thing to be checked: garlic
The residual drug type of farming: carbamate chemicals for agriculture
The decontaminating column filler of purchasing: filler 150mg, wherein activated charcoal 25% (granularity 100 μ m), zeyssatite 50% (granularity 60 μ m), filtration aid (Celite 545) 25% (granularity 10 μ m), purification method comprises the following steps:
The first step, the preparation sample solution is with the analyte in 15ml normal hexane and methylene chloride (weight ratio 35: 65) the mixed liquor extraction garlic;
In second step, the activating and purifying post flows through decontaminating column with 15ml normal hexane and methylene chloride (weight ratio 35: 65) mixed liquor.
The 3rd step, last sample.Garlic extract is added in the decontaminating column, flow through, blot under the negative pressure, collect effluent.
The analyte recovery: 90～98%, relative standard deviation:＜3%.
In this embodiment, impurity is attracted on the decontaminating column, and carbamate chemicals for agriculture is along with effluent flows out.
Claims (2)
1, a kind of residues of pesticides decontaminating column, it is characterized in that, comprise shell, upper sieve plate, following sieve plate and filler, described upper sieve plate is positioned at decontaminating column enclosure space than top, following sieve plate is positioned at the decontaminating column outer casing bottom, filler is between described up and down sieve plate, and the filler particle size range is between 5 μ m-100 μ m.
2, a kind of residues of pesticides decontaminating column as claimed in claim 1 is characterized in that, described plate thickness is 2mm, and sieve plate is the network with certain pore size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03261139 CN2697647Y (en) | 2003-08-19 | 2003-08-19 | Residual pesticide purifying column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03261139 CN2697647Y (en) | 2003-08-19 | 2003-08-19 | Residual pesticide purifying column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697647Y true CN2697647Y (en) | 2005-05-04 |
Family
ID=34755465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03261139 Expired - Lifetime CN2697647Y (en) | 2003-08-19 | 2003-08-19 | Residual pesticide purifying column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697647Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055540A (en) * | 2012-12-28 | 2013-04-24 | 中国农业大学 | Method for purifying pesticide residues and special purifier thereof |
| CN108444794A (en) * | 2018-02-13 | 2018-08-24 | 广州聚佰生物科技有限公司 | A kind of polishing filter for rapid detection for pesticide residue pre-treatment |
-
2003
- 2003-08-19 CN CN 03261139 patent/CN2697647Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055540A (en) * | 2012-12-28 | 2013-04-24 | 中国农业大学 | Method for purifying pesticide residues and special purifier thereof |
| CN108444794A (en) * | 2018-02-13 | 2018-08-24 | 广州聚佰生物科技有限公司 | A kind of polishing filter for rapid detection for pesticide residue pre-treatment |
| CN108444794B (en) * | 2018-02-13 | 2020-10-02 | 广州聚佰生物科技有限公司 | A purifying filter for pesticide residue rapid test pretreatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130819 Granted publication date: 20050504 |