CN107356658A - A kind of heavy metal detection system and detection method of quality control - Google Patents
A kind of heavy metal detection system and detection method of quality control Download PDFInfo
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- CN107356658A CN107356658A CN201710642047.1A CN201710642047A CN107356658A CN 107356658 A CN107356658 A CN 107356658A CN 201710642047 A CN201710642047 A CN 201710642047A CN 107356658 A CN107356658 A CN 107356658A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
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Abstract
The present invention proposes a kind of heavy metal detection system and detection method of quality control, the heavy metal in thing is examined to detect target by a heavy metal probe, so that detection time is shorter, accuracy of detection is higher, it is simple to operate, and it is easy to those skilled in the art to analyze the testing result of storage, reduce testing cost；Further, quality control is carried out to the reaction member for being coated with heavy metal probe in above-mentioned heavy metal detection system, qualified reaction member can be filtered out to detect with heavy metal, the accuracy of heavy metal analysis is improved, further, by being coated with reaction member in advance, and its quality is controlled, the time of detection heavy metal is shortened, improves the sensitivity of detection, the professional technique requirement to operating personnel is also corresponding to be reduced.
Description
Technical field
The present invention relates to heavy metal analysis research field, more particularly to a kind of system for detecting heavy metal and detection quality control
Method processed.
Background technology
The long-term mankind lived in natural environment, there is stronger adaptability for natural material.Someone analyzes people
The regularity of distribution of more than 60 kinds of common elements in body, find percentage composition in blood of human body of wherein most elements and they
Percentage composition in the earth's crust is very much like.But the mankind are then much smaller to artificial synthesized chemical substance, its tolerance.
So the nature or artificial attribute of difference pollutant, help to estimate their extents of injury to the mankind.The weight such as lead, cadmium, mercury, arsenic
Metal, it is due to the development of industrial activity, causes the enrichment in mankind's surrounding environment, people is entered by big gas and water, food etc.
Body, accumulated in some organs of human body, cause slow poisoning, be detrimental to health.
Current conventional heavy metal detection method has Atomic fluorophotometry (AFS), inductive coupling plasma mass (ICP-
MS) in vitro atomic emission spectrum (ICP-AES), high performance liquid chromatography such as analytical technology, inductive coupling etc..Answered currently numerous
For in the analytical technology of detection of heavy metal ion, atomic absorption spectrography (AAS) to be the most frequently used method, this method generally has higher
Sensitivity, but cost is higher, need professional and technical personnel's operation, obtain higher sensitivity need larger sample size and
It is time-consuming longer because sample must be analyzed successively.It is easy and suitable for scene it is thus impossible to meet that current batch samples are quick
The demand of detection.
Based on this, the present invention proposes a kind of system and method for quality control for detecting heavy metal, simple to operate, detection essence
Degree is higher, and has carried out quality control to reaction member in the system of the detection heavy metal, screens qualified be coated with much money
Belong to the reaction member of probe, improve the accuracy of detection.
The content of the invention
It is an object of the invention to provide detection heavy metal system and detection method of quality control so that detection time compared with
Short, accuracy of detection is higher, and simple to operate, requires relatively low to the professional technique of operating personnel.
In order to achieve the above object, one aspect of the present invention provides a kind of heavy metal detection system, for detecting target inspection
The heavy metal tested in thing, it is characterised in that including reaction member, measuring unit and memory cell；The reaction member coating
There is a heavy metal probe, the target for being opposite in the reaction member examines the heavy metal in thing to be detected, the survey
Amount unit is used to measure the heavy metal data message in the reaction member, and is stored to the memory cell.
Optionally, in above-mentioned heavy metal detection system, the reaction member includes a reaction chamber, the heavy metal probe
It is coated on a detecting electrode of the bottom of the reaction chamber, the detecting electrode is connected with the measuring unit.
Optionally, in above-mentioned heavy metal detection system, the heavy metal probe includes match somebody with somebody corresponding with the heavy metal
Position body；
Optionally, in above-mentioned heavy metal detection system, at least one layer is also included on the detecting electrode of the reaction member
Closure.
In order to achieve the above object, another aspect of the invention provides a kind of to the progress quality control of any of the above-described reaction member
The method of system, it is characterised in that including：
Heavy metal probe is coated on the detecting electrode of a reaction member to be detected；
First liquid is placed in the reaction member, first liquid include deionized water, ultra-pure water, PBS solution,
Any of PBS-T solution and Buffer B；
One end of the reaction member to be detected is applied to 40Hz-110MHz pumping signal, described to be detected anti-
Answer the other end of unit to measure the size of current of response signal, and the phase place change relative to pumping signal, and obtained with this
The data message of reaction member to be detected, the data message include impedance, phase shifting capability, electrical conductivity, resistive component, inductance point
One in amount and capacitive component or any combination；And
The data message of a qualified reaction member is obtained using above-mentioned steps, contrasts the data letter of the qualified reaction member
Whether breath is consistent with the data message of the reaction member to be detected, if unanimously, the reaction member to be detected is qualified.
Optionally, in above-mentioned reaction member method of quality control, in addition to：
When the data message of the qualified reaction member and the inconsistent data message of the reaction member to be detected, weight
The reaction member newly is coated with using the heavy metal probe, the heavy metal probe includes coordination corresponding with the heavy metal
Body；
First liquid is placed in the reaction member to be detected；
One end of the reaction member to be detected is applied to 40Hz-110MHz pumping signal, described to be detected anti-
Answer the other end of unit to measure the size of current of response signal, and the phase place change relative to pumping signal, and obtained with this
The data message of reaction member to be detected, the data message include impedance, electrical conductivity, resistive component, inductive component and electricity
Hold one in component or any combination；And
The data message of a qualified reaction member is obtained using above-mentioned steps, contrasts the data letter of the qualified reaction member
Whether breath is consistent with the data message of the reaction member to be detected, if unanimously, the reaction member to be detected is qualified；If no
Unanimously, repeat the above steps, until the reaction member to be detected is qualified.
Optionally, in above-mentioned reaction member method of quality control, it is described anti-to reuse the heavy metal probe coating
The step of answering unit includes：
First liquid is placed in reaction member to be detected, 40Hz-4MHz pairs is pressed with 50mV-10000mV sine voltage
Each reaction member does the scanning of frequency electrical conductivity, recording responses electric current and phase difference and selects several values in scanning result,
Characteristic parameter CS as the reaction member to be detected0；
The first liquid is poured out, the heavy metal probe solution of the first concentration is placed in inside reaction member to be detected, by 0-120
Hour at 10-40 degrees Celsius, relative humidity is to be placed in 70-90 space, the heavy metal probe solution including with it is described heavy
Ligand solution corresponding to metal；First concentration is corresponding with the concentration of the target detection thing；
First liquid is placed in reaction member to be detected, 40Hz-4MHz pairs is pressed with 50mV-10000mV sine voltage
Reaction member does frequency impedance scanning, recording responses electric current and phase difference and selects several values in scanning result, is used as this
The characteristic parameter CS of reaction member1；
The first liquid is poured out, confining liquid is loaded in reaction member to be detected, by 0-120 hours at 20-30 degrees Celsius, phase
To humidity be 70-100 space in place；
First liquid is placed in reaction member to be detected, 40Hz-4MHz pairs is pressed with 50mV-10000mV sine voltage
Reaction member does frequency impedance scanning, recording responses electric current and phase difference and selects several values in scanning result, is used as this
The characteristic parameter CS of reaction member2；And
The first liquid is poured out, examines thing to be put into reaction to be detected the target of known the first concentration for including heavy metal single
In member, inspection is performed, obtains three coating parameter CS respectively0、CS1、CS2Coating as the reaction member under the first concentration
Parameter, obtain standing time, temperature and humidity corresponding to each parameter.
Optionally, in above-mentioned reaction member method of quality control, the first liquid is poured out, the heavy metal of the first concentration is visited
Pin solution is placed in inside the reaction member to be detected, and by 0-120 hours at 20-30 degrees Celsius, relative humidity is 70-90 sky
Also include after the step of interior placement：
10Hz~10MHz excitation letter is applied to the reaction member to be detected of the heavy metal probe solution containing the first concentration
Number.
Optionally, in above-mentioned reaction member method of quality control, reuse and treated described in the heavy metal probe coating
The step of detecting reaction member also includes：
Obtaining characteristic parameter CS0Afterwards, cleaning liquid is placed in the reaction member to be detected, to described to be detected
Reaction member is cleaned, and the cleaning liquid includes any of deionized water, ultra-pure water, buffer solution and running water；
Obtaining characteristic parameter CS1Afterwards, cleaning liquid is placed in the reaction member to be detected, to described to be detected
Reaction member is cleaned；And
Obtaining characteristic parameter CS2Afterwards, cleaning liquid is placed in the reaction member to be detected, to described to be detected
Reaction member is cleaned.
In summary, the present invention proposes a kind of heavy metal detection system, by being coated with a weight in advance in the reaction cell
Metal probe with to target examine thing in heavy metal detect so that detection time is shorter, and accuracy of detection is higher, and to behaviour
The professional technique for making personnel requires to reduce, simple to operate；Further, target inspection thing is placed in the reaction member, makes it
Increase with the heavy metal probe contact area, add detection accuracy；Measured by measuring unit in the reaction member
Heavy metal data message, and data message is stored to memory cell, testing result is easy to achieve, and is easy to this area
Technical staff is analyzed the testing result of storage, reduces testing cost.
Brief description of the drawings
Fig. 1 is the heavy metal detection system structural representation in one embodiment of the present invention；
Fig. 2 is the flow chart for the method that quality control is carried out to the reaction member of embodiment in Fig. 1；
Fig. 3 is the method flow diagram that coating heavy metal probe is re-started when the reaction member of embodiment in Fig. 2 is unqualified.
Specifically, 1- measuring units；11- signaling modules；12 detection modules；2- memory cell；3- reaction members.
Embodiment
The embodiment of the present invention is described in more detail below in conjunction with schematic diagram.According to description below and
Claims, advantages and features of the invention will become apparent from.It should be noted that accompanying drawing is using very simplified form and
Using non-accurately ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
The present invention proposes a kind of heavy metal detection system, for detecting the heavy metal in target inspection thing, with reference to figure 1, bag
Include reaction member 3, measuring unit 1 and memory cell 2；The reaction member 3 is coated with a heavy metal probe, for being opposite to
Target in the reaction member 3 examines the heavy metal in thing to be detected, and the measuring unit 1 is used to measure the reaction list
Heavy metal data message in member 3, and stored to the memory cell 2.
Preferably, the reaction member 3 in the present embodiment includes a reaction chamber, and the heavy metal probe is coated in the reaction
On one detecting electrode of the bottom of chamber, the detecting electrode is connected with the measuring unit 1.In detection process, target examines thing
Reacted with the heavy metal probe in the reaction chamber of reaction member 3, the huge sum of money that measuring unit 1 obtains to the reaction
Category data message measures, and is stored into the memory cell 2.
Optionally, the data message of the heavy metal in the present invention includes but is not limited to the impedance value change of the reaction member
Change, the impedance value of the reaction member is transmitted to a memory cell 2 and stored by detection module 12.Heavy metal is visited with heavy metal
The complex compound of pin reaction generation changes the thickness of the detecting electrode of the reaction member, therefore, the impedance value meeting of reaction member
Change, it is preferred that in one embodiment of the invention, the change in impedance value of reaction member 3 is detected, by the reaction member 3
Impedance value is transmitted to a memory cell 2 and stored.
Optionally, those skilled in the art can analyze and obtain according to the change in impedance value of the reaction member 3 in the present embodiment
Testing result, the testing result include but is not limited to examine heavy metal species, quantity and the positive reason in thing for the target
Condition etc.；According to the composition of the analysis heavy metal of the heavy metal complex and concentration etc., the present invention does not do any to this
Limitation.
Specifically, the reaction member is coated with heavy metal probe, the heavy metal probe includes and the heavy metal pair
The ligand answered, the complex ion include but is not limited to be one kind in molecule, complex anion and complex cation and any group
Close, the present invention does not do any restrictions to this.Optionally, it is NH that molecule, which includes but is not limited to,3、H2O complex anions include but is not limited to
For CN-、SCN-、F-、Cl-Include but is not limited to be NO Deng, complex cation+.Optionally, on the detecting electrode of the reaction member 3
Also include at least one layer of closure.The closure is typically prepared using unrelated protein, prevents other materials to be adsorbed onto detection electricity
Testing result is impacted on extremely, to improve the accuracy of detection.
Specifically, with reference to figure 2, quality control is carried out to the reaction member in above-mentioned heavy metal detection system, can be screened
Go out qualified reaction member to detect with heavy metal, improve the accuracy of heavy metal analysis, further, by being coated with weight in advance
Metal probe, and its quality is controlled, the time of detection heavy metal is shortened, the professional technique requirement to operating personnel
It is corresponding to reduce.
Specifically, the method for quality control is carried out to the reaction member in above-mentioned heavy metal detection system to be included：
Step S1：Heavy metal probe is coated on the detecting electrode of a reaction member to be detected；
Step S2：First liquid is placed in the reaction member, first liquid includes deionized water, ultra-pure water, PBS
Any of solution, PBS-T solution and Buffer B；
Step S3：One end of the reaction member to be detected is applied to 40Hz-110MHz pumping signal, is treated described
The size of current of the other end measurement response signal of detection reaction member, and the phase place change relative to pumping signal, and with
This obtains the data message of reaction member to be detected；
Optionally, the data message includes impedance, phase shifting capability, electrical conductivity, resistive component, inductive component and electric capacity
One in component or any combination；The present invention does not do any restrictions to this；
Step S4：The data message of a qualified reaction member is obtained by step S1-S3, contrasts the qualified reaction member
Data message it is whether consistent with the data message of the reaction member to be detected, if unanimously, the reaction member to be detected
It is qualified.
Optionally, in one embodiment of the present invention, when the qualified reaction member data message with it is described to be detected
When the data message of reaction member is inconsistent, reuses heavy metal probe solution and be coated with the reaction member, the heavy metal
Probe solution includes ligand solution corresponding with the heavy metal, and the complex ion solution includes but is not limited to for molecule, matched somebody with somebody
The solution of one kind and any combination in anion and complex cation, the present invention are not intended to be limited in any to this；
First liquid is placed in the reaction member to be detected；
One end of the reaction member to be detected is applied to 40Hz-110MHz pumping signal, described to be detected anti-
Answer the other end of unit to measure the size of current of response signal, and the phase place change relative to pumping signal, and obtained with this
The data message of reaction member to be detected, the data message include impedance, electrical conductivity, resistive component, inductive component and electricity
Hold one in component or any combination；
The data message of a qualified reaction member is obtained using above-mentioned steps, contrasts the data letter of the qualified reaction member
Whether breath is consistent with the data message of the reaction member to be detected, if unanimously, the reaction member to be detected is qualified；If no
Unanimously, repeat the above steps, until the reaction member to be detected is qualified.
Optionally, in one embodiment of the present invention, with reference to figure 3, reuse and treated described in the heavy metal probe coating
Detection reaction member comprises the following steps.
Step Sa：First liquid is placed in reaction member to be detected, 40Hz- is pressed with 50mV-10000mV sine voltage
4MHz does the scanning of frequency electrical conductivity, recording responses electric current and phase difference to each reaction member and selects several of scanning result
Value, the characteristic parameter CS as the reaction member to be detected0；
Step Sb：The first liquid is poured out, the heavy metal probe solution of the first concentration is placed in inside reaction member to be detected,
By 0-120 hours at 20-30 degrees Celsius, relative humidity is to be placed in 70-90 space, the heavy metal probe solution including with
The solution of ligand corresponding to the heavy metal, the ligand solution include but is not limited to for molecule, complex anion and with sun
The solution of one kind and any combination in ion, optionally, the heavy metal probe solution for placing 0 hour as the first concentration are put
Moment inside reaction member to be detected.First concentration is corresponding with the concentration of the target detection thing.
Preferably, the heavy metal probe solution includes molecular complexes body corresponding with the heavy metal；It is described with it is cloudy from
Son can examine the heavy metal in thing react the corresponding complex ion of generation with the target, the complex ion can change it is described instead
Answer the impedance value of unit 3.Such as heavy metal copper is detected, copper ion Cu2+With corresponding molecular complexes body NH3It is combined into complex ion
[Cu(NH3)4]2+, it is of the invention that this is not intended to be limited in any.
In one embodiment of the invention, the heavy metal is carried out by the change of the impedance value of the reaction member to be detected
Detection；Optionally, those skilled in the art can be studied to obtain by making complex ion and an outer sphere of complex ions binding
The target examines composition and concentration of the heavy metal in thing etc..Such as SO2 4-With [Cu (NH3)4]2+[Cu (the NH of generation3)4]
SO4, to [Cu (the NH3)4]SO4Extracted and analyzed, obtain concentration of copper etc., the present invention is not intended to be limited in any to this.
Step Sc：First liquid is placed in reaction member to be detected, 40Hz- is pressed with 50mV-10000mV sine voltage
4MHz does frequency impedance scanning, recording responses electric current and phase difference to reaction member and selects several values of scanning result, makees
For the characteristic parameter CS of the reaction member to be detected1；
Step Sd：The first liquid is poured out, confining liquid is loaded in reaction member to be detected, is taken the photograph by 0-120 hours in 20-30
Family name's degree, relative humidity are to be placed in 70-100 space；
Step Se：First liquid is placed in reaction member to be detected, 40Hz- is pressed with 50mV-10000mV sine voltage
4MHz does frequency impedance scanning, recording responses electric current and phase difference to reaction member and selects several values of scanning result, makees
For the characteristic parameter CS of the reaction member to be detected2；
Step Sf：The first liquid is poured out, examines thing to be put into the target of known the first concentration for including heavy metal to be checked
Survey in reaction member, perform inspection, obtain three coating parameter CS respectively0、CS1、CS2Bag as reaction member under the concentration
By parameter, standing time, temperature and humidity corresponding to each parameter are obtained.
Optionally, step Sg is also included after Sb steps：To the to be detected of the heavy metal probe solution containing the first concentration
Reaction member applies 10Hz~10MHz pumping signal.It is easy to be internally formed significant thermograde in reaction member and cause
Local fluid flow, coating speed of the increase heavy metal probe solution on detecting electrode, the present invention do not do any limit to this
System.
Optionally, in one embodiment of the invention, reuse the heavy metal probe and be coated with the reaction member to be detected
The step of also include：
Obtaining characteristic parameter CS0Afterwards, cleaning liquid is placed in the reaction member to be detected, to described to be detected
Reaction member is cleaned, and the cleaning liquid includes any of deionized water, ultra-pure water, buffer solution and running water；
Obtaining characteristic parameter CS1Afterwards, cleaning liquid is placed in the reaction member to be detected, to described to be detected
Reaction member is cleaned；And
Obtaining characteristic parameter CS2Afterwards, cleaning liquid is placed in the reaction member to be detected, to described to be detected
Reaction member is cleaned.
Reaction member is cleaned by cleaning liquid, other particulate matters or ion in reaction member is filtered, can increase
Add coating precision, so as to improve the accuracy of detection of reaction member.
The target for being applied to the first concentration by filtering out examines the reaction member of thing, and the target of first concentration is examined
The heavy metal tested in thing is detected, and is on the one hand coated with heavy metal probe to reaction member in advance, is reduced detection time, another
Aspect, the qualified reaction member selected by step Sa- steps Sf, can obtain corresponding standing time, temperature and humidity,
Increase the accuracy of detection, meanwhile, testing process is simple, the professional technique of operating personnel is required to reduce, so as to reduce inspection
Cost is surveyed, there is feasibility.
In summary, the present invention proposes a kind of heavy metal detection system, by being coated with a weight in advance in the reaction cell
Metal probe with to target examine thing in heavy metal detect so that detection time is shorter, and accuracy of detection is higher, and to behaviour
The professional technique for making personnel requires to reduce, simple to operate；Further, target inspection thing is placed in the reaction member, makes it
Increase with the heavy metal probe contact area, add detection accuracy；Measured by measuring unit in the reaction member
Heavy metal data message, and data message is stored to memory cell, testing result is easy to achieve, and is easy to this area
Technical staff is analyzed the testing result of storage, reduces testing cost.
The preferred embodiments of the present invention are above are only, any restrictions effect is not played to the present invention.Belonging to any
Those skilled in the art, in the range of technical scheme is not departed from, to the invention discloses technical scheme and
Technology contents make the variation such as any type of equivalent substitution or modification, belong to the content without departing from technical scheme, still
Belong within protection scope of the present invention.
Claims (9)
- A kind of 1. heavy metal detection system, for detecting the heavy metal in target inspection thing, it is characterised in that single including reaction Member, measuring unit and memory cell；The reaction member is coated with a heavy metal probe, for being opposite to the reaction member In target examine the heavy metal in thing to be detected, the measuring unit is used to measure heavy metal number in the reaction member It is believed that breath, and stored to the memory cell.
- 2. heavy metal detection system as claimed in claim 1, it is characterised in that the reaction member includes a reaction chamber, institute On the detecting electrode for stating the bottom that heavy metal probe is coated in the reaction chamber, the detecting electrode connects with the measuring unit Connect.
- 3. heavy metal detection system as claimed in claim 2, it is characterised in that the heavy metal probe includes and the huge sum of money Ligand corresponding to category.
- 4. heavy metal detection system as claimed in claim 2, it is characterised in that also wrapped on the detecting electrode of the reaction member Include at least one layer of closure.
- 5. a kind of method that any reaction member to as described in claim 1-4 carries out quality control, it is characterised in that bag Include：Heavy metal probe is coated on the detecting electrode of a reaction member to be detected；First liquid is placed in the reaction member, first liquid includes deionized water, ultra-pure water, PBS solution, PBS-T Any of solution and Buffer B；One end of the reaction member to be detected is applied to 40Hz-110MHz pumping signal, it is single in the reaction to be detected The size of current of the other end measurement response signal of member, and the phase place change relative to pumping signal, and obtained with this to be checked Survey reaction member data message, the data message include impedance, phase shifting capability, electrical conductivity, resistive component, inductive component with And one in capacitive component or any combination；AndThe data message of a qualified reaction member is obtained using above-mentioned steps, contrast the data message of the qualified reaction member with Whether the data message of the reaction member to be detected is consistent, if unanimously, the reaction member to be detected is qualified.
- 6. method of quality control as claimed in claim 5, it is characterised in that also include：When the data message of the qualified reaction member and the inconsistent data message of the reaction member to be detected, make again The reaction member is coated with the heavy metal probe, the heavy metal probe includes ligand corresponding with the heavy metal；First liquid is placed in the reaction member to be detected；One end of the reaction member to be detected is applied to 40Hz-110MHz pumping signal, it is single in the reaction to be detected The size of current of the other end measurement response signal of member, and the phase place change relative to pumping signal, and obtained with this to be checked The data message of reaction member is surveyed, the data message includes impedance, electrical conductivity, resistive component, inductive component and electric capacity point One in amount or any combination；AndThe data message of a qualified reaction member is obtained using above-mentioned steps, contrast the data message of the qualified reaction member with Whether the data message of the reaction member to be detected is consistent, if unanimously, the reaction member to be detected is qualified；If differ Cause, repeat the above steps, until the reaction member to be detected is qualified.
- 7. method of quality control as claimed in claim 6, it is characterised in that reuse described in the heavy metal probe coating The step of reaction member to be detected, includes：First liquid is placed in reaction member to be detected, with 50mV-10000mV sine voltage by 40Hz-4MHz to each Reaction member does the scanning of frequency electrical conductivity, recording responses electric current and phase difference and selects several values in scanning result, as The characteristic parameter CS of the reaction member to be detected0；The first liquid is poured out, the heavy metal probe solution of the first concentration is placed in inside reaction member to be detected, by 0-120 hours At 10-40 degrees Celsius, relative humidity is to be placed in 70-90 space, and the heavy metal probe solution includes and the heavy metal Corresponding ligand solution；First concentration is corresponding with the concentration of the target detection thing；First liquid is placed in reaction member to be detected, with 50mV-10000mV sine voltage by 40Hz-4MHz to reaction Unit does frequency impedance scanning, recording responses electric current and phase difference and selects several values in scanning result, as the reaction The characteristic parameter CS of unit1；The first liquid is poured out, confining liquid is loaded in reaction member to be detected, it is relatively wet by 0-120 hours at 20-30 degrees Celsius Spend in the space for 70-100 and place；First liquid is placed in reaction member to be detected, with 50mV-10000mV sine voltage by 40Hz-4MHz to reaction Unit does frequency impedance scanning, recording responses electric current and phase difference and selects several values in scanning result, as the reaction The characteristic parameter CS of unit2；AndThe first liquid is poured out, examines thing to be put into reaction member to be detected the target of known the first concentration for including heavy metal It is interior, inspection is performed, obtains three coating parameter CS respectively0、CS1、CS2Coating ginseng as the reaction member under the first concentration Number, obtains standing time, temperature and humidity corresponding to each parameter.
- 8. method of quality control as claimed in claim 7, it is characterised in that the first liquid is poured out, by a huge sum of money for the first concentration Category probe solution is placed in inside the reaction member to be detected, by 0-120 hours at 20-30 degrees Celsius, relative humidity 70-90 Space in place the step of after also include：10Hz~10MHz pumping signal is applied to the reaction member to be detected of the heavy metal probe solution containing the first concentration.
- 9. method of quality control as claimed in claim 7, it is characterised in that reuse described in the heavy metal probe coating The step of reaction member to be detected, also includes：Obtaining characteristic parameter CS0Afterwards, cleaning liquid is placed in the reaction member to be detected, to the reaction to be detected Unit is cleaned, and the cleaning liquid includes any of deionized water, ultra-pure water, buffer solution and running water；Obtaining characteristic parameter CS1Afterwards, cleaning liquid is placed in the reaction member to be detected, to the reaction to be detected Unit is cleaned；AndObtaining characteristic parameter CS2Afterwards, cleaning liquid is placed in the reaction member to be detected, to the reaction to be detected Unit is cleaned.
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