A kind of vial and its production for that can reduce to the loss of expensive powdered samples
Method
Technical field
The present invention relates to a kind of vials and preparation method thereof for that can reduce to the loss of expensive powdered samples, belong to
Sample preservation field.
Background technique
Vial has chemical inertness simultaneously since it is cheap, is always the storage container of powdered chemical drug, and with
Sample partial size it is smaller, surface can be also bigger, the powder that causes many partial sizes superfine also bigger with the surface tension of glass
Shape sample is stored in glass container, is had and is largely adhered to glass surface, and the sample of usually these adherency can only be dropped, and is made
At unnecessary loss.For common sample, these losses may can be born, but for sample costly, such as albumen
Sample, biological active matter quality sample, usual gram of valence all in tens of thousands of members, is divided in the micro-example bottle of 100mg, and is adhered to glass
Sample size on glass surface will be more than 10%, that is, the loss of several hundred to thousands of members, this loss make people very distressed.
Polytetrafluoroethylene (PTFE) (PTFE) is the high-molecular compound as made of tetrafluoroethylene polymerization, is commonly called as " Teflon ", corrosion resistant
Erosion, is a kind of chemically inert polymer material, this material has the advantages that surface can be especially small simultaneously, so wide
It is general to be used for non-stick pan, coating material, pipe fitting, the container of military articles etc..Also there are a large amount of polytetrafluoroethylcontainer containers currently on the market,
But usually all costly, g grades of volumetric flask will be 100 yuan or so.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of for that can reduce to expensive powder
The vial and preparation method thereof of shape sample loss.The resulting vial for being coated with PTFE of this method can greatly reduce glass
The surface energy of glass bottle inner surface, reduces adherency of the powdered samples on vial, effectively improves making for expensive powdered samples
Use efficiency.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of vial for that can reduce to the loss of expensive powdered samples, by one layer in glass sample bottle internal coat
Polytetrafluoroethylene (PTFE) (PTFE), PTFE coating, which can play, reduces glass surface energy, reduces the work of attachment of the sample powder on glass
With.
Be preferably in the above scheme, the preparation method of the vial of the coated with PTFE the following steps are included:
Step a. polishing: polishing to vial inner surface with sandblasting, increases the degree of roughness of vial inner surface;
Step b. cleaning: the organic impurities of vial inner surface is cleaned with alcohol reagent, is then washed with water in vial
The impurity and alcohol reagent on surface;
Step c. drying: vial is put into the inner surface of drying box drying vial;
Step d. silanization: mass fraction is molten for 3-aminopropyltriethoxysilane (AMEO) methanol of 6%-10%
Liquid is added in vial, and it is molten to pour out 3-aminopropyltriethoxysilane methanol (AMEO) methanol after stirring or oscillation 10 seconds or more
Liquid washes away excessive 3-aminopropyltriethoxysilane methanol (AMEO) methanol solution with methanol, after natural drying by vial
It is heated 1 hour in 100 DEG C, completes the silanization to vial inner surface;
Step e. spraying: injecting flush coater for the methanol solution for the polytetrafluoroethylene (PTFE) (PTFE) that mass fraction is 4%-6%,
To vial inner surface even application, the vial after spraying is put into drying box and is spontaneously dried, organic solvent is vapored away;
Step f. solidifies: the vial after spraying being put into 80 DEG C of -100 DEG C of baking ovens, stands 10-15 minutes, completes poly- four
The solidification of vinyl fluoride (PTFE) coating.
In any of the above-described scheme preferably, the vial is 5mL brown mother glass bottle.
In any of the above-described scheme preferably, polytetrafluoroethylene (PTFE) (PTFE) solution in the step e is poly- for nanoscale
Tetrafluoroethene (PTFE) solution, nano particle diameter is less than 100 nanometers.
In any of the above-described scheme preferably, cleaning operation uses supersonic wave cleaning machine in the step b.
The present invention also provides above-mentioned for that can reduce the production method of the vial to the loss of expensive powdered samples, special
Sign is: the following steps are included:
Step a. polishing: polishing to vial inner surface with sandblasting, increases the degree of roughness of vial inner surface;
Step b. cleaning: the organic impurities of vial inner surface is cleaned with alcohol reagent, is then washed with water in vial
The impurity and alcohol reagent on surface;
Step c. drying: vial is put into the inner surface of drying box drying vial;
Step d. silanization: mass fraction is molten for 3-aminopropyltriethoxysilane (AMEO) methanol of 6%-10%
Liquid is added in vial, and it is molten to pour out 3-aminopropyltriethoxysilane methanol (AMEO) methanol after stirring or oscillation 10 seconds or more
Liquid washes away excessive 3-aminopropyltriethoxysilane methanol (AMEO) methanol solution with methanol, after natural drying by vial
It is heated 1 hour in 100 DEG C, completes the silanization to vial inner surface;
Step e. spraying: injecting flush coater for the methanol solution for the polytetrafluoroethylene (PTFE) (PTFE) that mass fraction is 4%-6%,
To vial inner surface even application, the vial after spraying is put into drying box and is spontaneously dried, organic solvent is vapored away;
Step f. solidifies: the vial after spraying being put into 80 DEG C of -100 DEG C of baking ovens, stands 10-15 minutes, completes poly- four
The solidification of vinyl fluoride (PTFE) coating.
It is preferably in the above scheme, the vial is 5mL brown mother glass bottle.
In any of the above-described scheme preferably, polytetrafluoroethylene (PTFE) (PTFE) solution in the step e is poly- for nanoscale
Tetrafluoroethene PTFE solution, nano particle diameter is less than 100 nanometers.
In any of the above-described scheme preferably, cleaning operation uses supersonic wave cleaning machine in the step b.
Compared with prior art, the positive effect of the present invention is:
(1) present invention prepared by inner wall be coated with PTFE material vial it is cheap, inner wall surface can it is small, effectively
Adherency of the powdered samples in bottle wall is reduced, the utilization efficiency of sample is greatly improved
(2) process of the present invention is simple, can be used for being mass produced.It is cheap vial is given full play to, PTFE
Material is easy to the characteristics of coating.
Detailed description of the invention
Fig. 1: three kinds of samples remaining sample amount average value in two kinds of vials compares in embodiment 4.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of vial for that can reduce to the loss of expensive powdered samples, comprising the following steps:
(1) it polishes: being polished with sandblasting vial inner surface, increase the degree of roughness of vial inner surface;
(2) it cleans: cleaning the organic impurities of vial inner surface with alcohol reagent, then wash with water vial inner surface
Impurity and alcohol reagent;
(3) it dries: vial is put into the inner surface of drying box drying vial;
(4) silanization: 6% 3-aminopropyltriethoxysilane (AMEO) methanol solution is added in vial, is stirred
It mixes or pours out AMEO solution after vibrating 10 seconds or more, excessive AMEO solution is washed away with methanol, by vial after natural drying in 100
It DEG C heating 1 hour, completes to the silanization of vial inner surface;
(5) it sprays: the methanol solution injection flush coater of 4% PTFE will spray vial inner surface even application
Vial afterwards, which is put into drying box, to be spontaneously dried, and organic solvent is vapored away;
(6) solidify: the vial after spraying being put into 100 DEG C of baking ovens, stands 10 minutes, completes the solidification of PTFE coating.
Embodiment 2
A kind of vial for that can reduce to the loss of expensive powdered samples, comprising the following steps:
(1) it polishes: being polished with sandblasting vial inner surface, increase the degree of roughness of vial inner surface;
(2) it cleans: cleaning the organic impurities of vial inner surface with alcohol reagent, then wash with water vial inner surface
Impurity and alcohol reagent;
(3) it dries: vial is put into the inner surface of drying box drying vial;
(4) silanization: 10% 3-aminopropyltriethoxysilane (AMEO) methanol solution is added in vial, is stirred
It mixes or pours out AMEO solution after vibrating 10 seconds or more, excessive AMEO solution is washed away with methanol, by vial after natural drying in 100
It DEG C heating 1 hour, completes to the silanization of vial inner surface;
(5) it sprays: the methanol solution injection flush coater of 6% PTFE will spray vial inner surface even application
Vial afterwards, which is put into drying box, to be spontaneously dried, and organic solvent is vapored away;
(6) solidify: the vial after spraying being put into 80 DEG C of baking ovens, stands 15 minutes, completes the solidification of PTFE coating.
Embodiment 3
A kind of vial for that can reduce to the loss of expensive powdered samples, comprising the following steps:
(1) it polishes: being polished with sandblasting vial inner surface, increase the degree of roughness of vial inner surface;
(2) it cleans: cleaning the organic impurities of vial inner surface with alcohol reagent, then wash with water vial inner surface
Impurity and alcohol reagent;
(3) it dries: vial is put into the inner surface of drying box drying vial;
(4) silanization: 8% 3-aminopropyltriethoxysilane (AMEO) methanol solution is added in vial, is stirred
It mixes or pours out AMEO solution after vibrating 10 seconds or more, excessive AMEO solution is washed away with methanol, by vial after natural drying in 100
It DEG C heating 1 hour, completes to the silanization of vial inner surface;
(5) it sprays: the methanol solution injection flush coater of 5% PTFE will spray vial inner surface even application
Vial afterwards, which is put into drying box, to be spontaneously dried, and organic solvent is vapored away;
(6) solidify: the vial after spraying being put into 90 DEG C of baking ovens, stands 12 minutes, completes the solidification of PTFE coating.
Embodiment 4
With bovine serum albumin(BSA) (BSA), cromoci (Cytochrome C), polyethylene glycol 200 k (PEO 200k) three
Kind substance is sample, takes the inner surface prepared in 10 2mL simple glass bottles and 10 2mL embodiments 1 coating PTFE material
Vial, tri- kinds of powder samples of accurate weighing 100mg are separately added into each vial respectively in batches.These samples are distinguished
Pour out, weigh the sample size m that each vial is poured out respectively, calculate remaining sample amount 100-m in vial, three kinds of samples it is surplus
Remaining sample size is as shown in table 1.The average value of the remaining sample amount of simple glass bottle and PTFE inner wall vial is calculated, and does figure such as
Shown in Fig. 1.Remaining sample amount will be far fewer than remaining in simple glass bottle in vial as can be seen from Figure through PTFE modification inner wall
Remaining sample size, illustrate through PTFE modify inner wall vial can be very good reduce powdered samples glass inner wall absorption,
Have the function that reduce sample loss.
The remaining sample amount of 1 three kinds of samples of table
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.