CN114989901B - Cleaning agent and cleaning method for moment tube of inductively coupled plasma emission spectrometer - Google Patents
Cleaning agent and cleaning method for moment tube of inductively coupled plasma emission spectrometer Download PDFInfo
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- CN114989901B CN114989901B CN202210745161.8A CN202210745161A CN114989901B CN 114989901 B CN114989901 B CN 114989901B CN 202210745161 A CN202210745161 A CN 202210745161A CN 114989901 B CN114989901 B CN 114989901B
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- pyrophosphate
- hypochlorite
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 44
- 238000004140 cleaning Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000009616 inductively coupled plasma Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims abstract description 42
- -1 polyoxyethylene Polymers 0.000 claims abstract description 37
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 33
- 239000008367 deionised water Substances 0.000 claims abstract description 30
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 30
- 235000011180 diphosphates Nutrition 0.000 claims abstract description 24
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 24
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 claims abstract description 23
- 239000003513 alkali Substances 0.000 claims abstract description 16
- 239000003973 paint Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 229940048084 pyrophosphate Drugs 0.000 claims description 23
- 238000002791 soaking Methods 0.000 claims description 18
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical group [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 15
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 14
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical group [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 claims description 14
- 150000005215 alkyl ethers Chemical class 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 125000000373 fatty alcohol group Chemical group 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 claims description 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 17
- 150000003839 salts Chemical class 0.000 abstract description 14
- 230000006378 damage Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical class ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 208000018380 Chemical injury Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000012764 semi-quantitative analysis Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/06—Phosphates, including polyphosphates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
The invention belongs to the technical field of cleaning of inductively coupled plasma emission spectrometers, and particularly relates to a cleaning agent and a cleaning method for a rectangular tube of an inductively coupled plasma emission spectrometer, wherein the cleaning agent comprises the following components: the water-based paint comprises, by mass, 5-15 parts of polyoxyethylene nonionic surfactant, 10-25 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 50-80 parts of deionized water. The cleaning agent disclosed by the invention has the advantages of excellent cleaning effect, short cleaning time, capability of easily removing impurities such as salt, metal, organic residual pollutants and the like remained on the surface of the rectangular tube, no corrosion damage to the rectangular tube and high safety.
Description
Technical Field
The invention belongs to the technical field of cleaning of inductively coupled plasma emission spectrometers, and particularly relates to a cleaning agent and a cleaning method for a rectangular tube of an inductively coupled plasma emission spectrometer.
Background
The inductively coupled plasma emission spectrometer (ICP-AES emission spectrometer) can continuously and rapidly perform multi-element measurement, has high accuracy and wide linear range, can perform qualitative and semi-quantitative analysis on samples, and has wide application in the fields of geology, environmental protection, chemical industry, biology, medicine, food, metallurgy, agriculture and the like. Meanwhile, the inductively coupled plasma emission spectrometer is used as a precise atomic emission spectrometer, and the cost of the inductively coupled plasma emission spectrometer is quite high. The moment tube is a critical and important component of an inductively coupled plasma emission spectrometer and therefore requires periodic cleaning and maintenance. The rectangular tube is a part which is easy to accumulate carbon and salt in the use process of the inductively coupled plasma emission spectrometer, and after a period of use, the surface of the rectangular tube is easy to be blackened and the smooth surface is also easy to be roughened. The ignition of the instrument may be affected when there are residual contaminants on the tube, and the stability and detection sensitivity of the instrument may also be affected.
For the cleaning method of the rectangular tube, the traditional method adopts a gold and ceramic lamp scraping tool, however, the rectangular tube is extremely easy to damage, the rectangular tube is expensive and special in material, and the traditional scraping method cannot thoroughly clean sediment. The present patent and literature report methods for cleaning the rectangular tube mainly comprise the steps of immersing the rectangular tube in a proper acid or solvent to remove inorganic salts and metals on the rectangular tube, and also comprise the steps of baking the rectangular tube in a muffle furnace to remove carbon and some organic pollutants deposited on the surface of the rectangular tube. The acid used for soaking the rectangular tube reported in the literature is mainly aqua regia (HNO 3 Hcl=1:3), concentrated nitric acid, a mixed solution of hydrochloric acid and nitric acid, or a 2% hydrofluoric acid solution, etc., are also reported to use a process of immersing a tube in a diluted surfactant to remove salt build-up on the tube.
However, when the tube is immersed in an acid solution such as nitric acid or aqua regia, residual contaminants deposited for a long period of time may not be thoroughly removed, and the tube may be damaged by the long-term immersion, which affects the detection sensitivity of the instrument. Because quartz torch tubes are not resistant to corrosion by hydrofluoric acid, soaking the tube with hydrofluoric acid can also cause damage to the tube. Meanwhile, strong acid solutions such as aqua regia, nitric acid and the like are strong in corrosiveness and volatility, and personal injury is easily caused if protection is not noticed in the preparation and use processes. When the acid liquor or the diluted surfactant is used for soaking the rectangular tube, only inorganic salt pollutants remained on the surface of the rectangular tube can be simply removed, and the residual salt, metal and organic residual pollutants on the surface of the rectangular tube cannot be comprehensively removed, and the time required for soaking the acid liquor or the surfactant is long.
Disclosure of Invention
The invention aims to overcome the defect that the cleaning solution in the prior art cannot thoroughly remove impurities on the surface of a rectangular tube and has corrosiveness, and provides the cleaning agent and the cleaning method for the rectangular tube of the inductively coupled plasma emission spectrometer.
In order to achieve the above object, in a first aspect, the present invention provides a cleaning agent for a moment tube of an inductively coupled plasma emission spectrometer, comprising the following components: the water-based paint comprises, by mass, 5-15 parts of polyoxyethylene nonionic surfactant, 10-25 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 50-80 parts of deionized water.
Preferably, the composition comprises the following: the water-based paint comprises, by mass, 5-10 parts of polyoxyethylene nonionic surfactant, 10-20 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 60-80 parts of deionized water.
In some preferred embodiments, the cleaning agent comprises the following composition: 7-10 parts of polyoxyethylene nonionic surfactant, 12-20 parts of pyrophosphate, 4-5 parts of hypochlorite, 3-5 parts of alkali and 60-75 parts of deionized water.
In some preferred embodiments, the mass ratio of polyoxyethylene-type nonionic surfactant, pyrophosphate and hypochlorite is from 2-3:3-4:1.
In some preferred embodiments, the polyoxyethylene nonionic surfactant is a polyoxyethylene alkyl ether, the pyrophosphate salt is tetrapotassium pyrophosphate and/or sodium pyrophosphate, the hypochlorite salt is sodium hypochlorite and/or potassium hypochlorite, and the base is sodium hydroxide and/or potassium hydroxide.
More preferably, the polyoxyethylene nonionic surfactant is fatty alcohol polyoxyethylene ether with 32-36 carbon atoms, the pyrophosphate is tetrapotassium pyrophosphate, the hypochlorite is sodium hypochlorite, and the alkali is sodium hydroxide.
In a second aspect, the invention provides a method for cleaning a matrix tube of an inductively coupled plasma emission spectrometer, comprising the following steps:
(1) Immersing a moment tube to be cleaned in the cleaning agent in the first aspect, soaking, and immediately flushing the moment tube with water after the soaking is finished; optionally drying;
(2) And then burning the rectangular tube to remove carbon deposition, and then cleaning and drying.
In some preferred embodiments, in step (1), the time of each soak is no more than 2 hours.
In some preferred embodiments, the cleaning method further comprises: repeating the step (1) for a plurality of times.
In some preferred embodiments, the rinsing of the tube with water comprises: washing with tap water and then washing with deionized water.
In some preferred embodiments, in step (2), the firing temperature is 500-700 ℃.
In some preferred embodiments, the firing process includes: and placing the rectangular tube into a muffle furnace at the firing temperature, opening a muffle furnace door to allow air to enter, closing, heating to the firing temperature, and repeating for a plurality of times.
In some preferred embodiments, in step (2), the cleaning process comprises: the washing is carried out by using volatile organic solvent, and then the washing is carried out by using deionized water.
Through the technical scheme, after the components are matched, the organic cleaning agent has certain oxidizing property and coordination capacity, has a good effect of removing matrix tube impurities such as organic residues, metal residual pollutants and the like, has a synergistic effect, and is simple in formula, good in cleaning effect, low in cost and short in cleaning time. Wherein, the synergistic coordination mechanism of each component is as follows: when the tube is used for a period of time, substances such as organic phosphorus and other impurities remain, the oxidation of hypochlorite or the alkaline hydrolysis of hypochlorite can decompose the impurities into soluble salts or metal ions, the pyrophosphate has high chelating capacity and can be combined with the soluble salts or metal ions, and meanwhile, under the action of polyoxyethylene nonionic surfactant and alkali, the decomposition and chelation of the impurities are promoted or accelerated, and the rapid exposure of the impurities at the bottom layer is removed rapidly and thoroughly, so that the cleaning agent has excellent wetting, emulsifying, decontaminating and dispersing effects, and the surface impurities of the tube are removed more efficiently and thoroughly.
Moreover, the cleaning agent avoids the use of chemicals and volatile solvents with stronger toxicity, does not use chemical reagents which are easy to cause corrosive damage to the rectangular tube, such as hydrochloric acid, nitric acid, hydrofluoric acid and the like, and has low toxicity and high safety. The cleaning agent disclosed by the invention can be used for efficiently and thoroughly removing impurities such as salt, metal, organic residual pollutants and the like remained on the surface of the rectangular tube, can not cause corrosion damage to the rectangular tube, does not influence the stability of the rectangular tube and the ignition of plasma, can prolong the service life of the rectangular tube and saves the maintenance cost of an instrument.
The cleaning method is easy to operate, the cleaning agent is easy to prepare, not only can thoroughly remove other dirt except carbon deposit remained on the rectangular tube by soaking, but also can remove the carbon deposit on the rectangular tube by burning; meanwhile, the damage to the rectangular tube is avoided, the service life of the rectangular tube is prolonged, and the stability of the rectangular tube and the ignition of plasma are not affected.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
In a first aspect, the invention provides a cleaning agent for a moment tube of an inductively coupled plasma emission spectrometer, which comprises the following components: the water-based paint comprises, by mass, 5-15 parts of polyoxyethylene nonionic surfactant, 10-25 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 50-80 parts of deionized water.
Preferably, the composition comprises the following: the water-based paint comprises, by mass, 5-10 parts of polyoxyethylene nonionic surfactant, 10-20 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 60-80 parts of deionized water. According to the preferable scheme, the impurities such as salt, metal and organic residual pollutants remained on the surface of the rectangular tube can be removed more conveniently and rapidly.
In some preferred embodiments, the cleaning agent comprises the following composition: 7-10 parts of polyoxyethylene nonionic surfactant, 12-20 parts of pyrophosphate, 4-5 parts of hypochlorite, 3-5 parts of alkali and 60-75 parts of deionized water. This preferred scheme is more favorable to getting rid of impurities such as salt, metal and the organic residual pollutant of matrix tube surface fast, and the adverse effect to the matrix tube is minimum.
In some preferred embodiments, the mass ratio of polyoxyethylene-type nonionic surfactant, pyrophosphate and hypochlorite is from 2-3:3-4:1. The preferable scheme has proper proportion of each component, and is more beneficial to the rapid emulsification, complexation and decomposition of each impurity, thereby being more beneficial to the rapid and thorough removal of impurities such as salt, metal, organic residual pollutants and the like remained on the surface of the rectangular tube.
In some preferred embodiments, the polyoxyethylene-type nonionic surfactant is a polyoxyethylene alkyl ether. The polyoxyethylene alkyl ether may or may not contain a polyoxypropylene group, and the alkyl group may be branched or straight chain.
Preferably, the polyoxyethylene nonionic surfactant is fatty alcohol polyoxyethylene ether.
Preferably, the polyoxyethylene nonionic surfactant is fatty alcohol polyoxyethylene ether with 32-36 carbon atoms. The number of carbon atoms is the total number of carbon atoms. The fatty alcohol preferably has 12 to 14 carbon atoms.
More preferably, the polyoxyethylene type nonionic surfactant is fatty alcohol polyoxyethylene polyoxypropylene ether with 32-36 carbon atoms.
In some preferred embodiments, the pyrophosphate salt is tetrapotassium pyrophosphate and/or sodium pyrophosphate.
In some preferred embodiments, the hypochlorite is sodium hypochlorite and/or potassium hypochlorite.
In some preferred embodiments, the base is sodium hydroxide and/or potassium hydroxide.
More preferably, the polyoxyethylene nonionic surfactant is fatty alcohol polyoxyethylene ether with 32-36 carbon atoms, the pyrophosphate is tetrapotassium pyrophosphate, the hypochlorite is sodium hypochlorite, and the alkali is sodium hydroxide. In this preferred embodiment, the components have a better synergistic effect in removing matrix tube impurities.
In the invention, the functions and performances of each component are as follows:
polyoxyethylene alkyl ether: the nonionic surfactant has wetting agent and high foaming property, belongs to nonionic detergent, can be mixed with water, ethanol, toluene and the like, and can dissolve various oils, resins and the like. The preferable fatty alcohol polyoxyethylene ether with 32-36 carbon atoms has excellent detergency and good fluidity at low temperature, is suitable for the high-concentration formula of the invention, and enables other component substances in the cleaning agent to react more thoroughly and completely, so that the cleaning agent has better wetting, emulsifying, decontaminating and dispersing effects.
Pyrophosphate: which makes the cleaning agent of the invention have proper strong alkalinity, and pyrophosphate ions and Cu 2+ 、Ag + 、Zn 2+ 、Hg 2+ In the plasma reaction, precipitation is generated, and when the amount of pyrophosphate ions is proper, metal ions and pyrophosphate ions form complex ions to be dissolved, so that dirt is removed. Whereas phosphate does not possess this characteristic reaction. Preferred tetrapotassium pyrophosphate (K) 4 P 2 O 7 ) Has all the properties of other polyphosphate salts, and can be chelated with alkaline earth metal and heavy metal ions, and can be used with Ca in hard water 2+ 、Mg 2+ Forming stable complex to soften hard water, further improving washing ability and removing dirt. For the reaction principle of pyrophosphate, cu is adopted 2+ And Ag + The following are examples:
2Cu 2+ +P 2 O 7 4- ＝＝＝Cu 2 P 2 O 7 ↓
Cu 2 P 2 O 7 +P 2 O 7 4- ＝＝＝2[CuP 2 O 7 ] 2-
P 2 O 7 4- +4Ag + ＝Ag 4 P 2 O 7 ∈ (white precipitate)
Hypochlorite: compared with chlorate which is strong in oxidability and corrosiveness, but very low in oxidability in neutral or weak alkaline solution and poor in stability, the strong oxidant and the bleaching agent are mild in property and safer, can be matched with other components of the invention to effectively remove organic pollutants remained in a rectangular tube, and cannot damage the rectangular tube. Taking sodium hypochlorite (NaClO) as an example, it is dissolved in water to form hypochlorous acid: naClO+H 2 O＝HClO+NaOH；
Hypochlorous acid is further decomposed to form nascent oxygen, namely: HClO→HCl+ [ O ]. At this time, the ion-exchange membrane has oxidizing ability, and some impurities can be oxidized, so that the formed ions can be chelated by pyrophosphate to cooperatively remove the impurities.
Sodium hydroxide (NaOH): as alkaline cleaning agent, the pH value of the solution is regulated to react with partial salt substances.
The cleaning agent does not use aqua regia, sulfuric acid, hydrofluoric acid and other solvents with strong corrosiveness and volatility, so that the damage to the rectangular tube caused by strong corrosiveness of the cleaning agent is avoided, and the chemical injury to a human body in the process of using the cleaning agent is avoided; and can realize high-efficient, thoroughly get rid of the remaining salt in quarter bend surface, metal and organic impurity such as remaining pollutant simultaneously, and can not lead to the fact corrosion damage to quarter bend, and does not influence quarter bend stability and plasma ignition, can prolong the life of quarter bend, save the cost of instrument maintenance.
In the invention, a person skilled in the art can clean the rectangular tube by using the cleaning agent at any time when the cleaning agent is needed according to the requirements. For example, the cleaning agent may be used for cleaning the tube after a long period of use, or the cleaning agent may be used for cleaning the tube after a large amount of alkali fusion sample is measured.
In a second aspect, the invention provides a method for cleaning a matrix tube of an inductively coupled plasma emission spectrometer, comprising the following steps:
(1) Immersing a moment tube to be cleaned in the cleaning agent in the first aspect, soaking, and immediately flushing the moment tube with water after the soaking is finished; optionally drying;
(2) And then burning the rectangular tube to remove carbon deposition, and then cleaning and drying.
In the invention, in order to avoid calcification precipitation, the time of each soaking is not more than 3 hours. In some preferred embodiments, in step (1), the time of each soak is no more than 2 hours. Generally, dirt on the surface of the rectangular tube can be thoroughly cleaned by soaking once.
In the present invention, if the residual scale on the surface of the tube is excessive, the scale other than carbon deposit (brown precipitate) remains on the surface of the tube after soaking once, and in some preferred embodiments, the cleaning method further comprises: repeating the step (1) for a plurality of times until the dirt is cleaned. It will be appreciated that the rinsing and optionally drying described in step (1) is carried out after each soaking, followed by the next soaking.
In some preferred embodiments, the rinsing of the tube with water of step (1) comprises: washing with tap water and then washing with deionized water.
The person skilled in the art can choose whether to carry out the drying described in step (1) or not according to the requirements. The drying can be natural drying or heating.
The invention thoroughly eliminates dirt except carbon deposition (brown sediment) on the rectangular tube through the step (1), and then removes the carbon deposition on the rectangular tube through the step (2).
In some preferred embodiments, in step (2), the firing temperature is 500-700 ℃, e.g. 500, 550, 600, 650, 700 ℃.
In some preferred embodiments, the firing process includes: and placing the rectangular tube into a muffle furnace at the firing temperature, opening a muffle furnace door to allow air to enter, closing, heating to the firing temperature, and repeating for a plurality of times. According to the preferable scheme, carbon deposit on the rectangular tube can be fully burnt in the air, so that the carbon deposit is thoroughly removed.
The time for opening the muffle door can be selected by the person skilled in the art according to the requirements, and can be, for example, 3-10s.
And after cooling the muffle furnace, taking out the rectangular tube, and carrying out subsequent cleaning.
In some preferred embodiments, in step (2), the cleaning process comprises: the washing is carried out by using volatile organic solvent, and then the washing is carried out by using deionized water. The volatile organic solvents include, but are not limited to, ethanol, isopropanol, and the like.
The drying in the step (2) may be natural drying, or may be realized by heating, and the heating temperature may be, for example, 70-120 ℃.
The invention will be described in detail with reference to specific examples. Wherein the polyoxyethylene alkyl ether is C12-C14 fatty alcohol polyoxyethylene polyoxypropylene ether (its molecular formula is C 34 H 70 O 10 )。
Example 1:
the cleaning agent comprises, by mass, 10 parts of polyoxyethylene alkyl ether, 20 parts of tetrapotassium pyrophosphate, 5 parts of sodium hypochlorite, 5 parts of sodium hydroxide and 60 parts of deionized water. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Example 2:
the cleaning agent comprises, by mass, 8 parts of polyoxyethylene alkyl ether, 15 parts of tetrapotassium pyrophosphate, 4 parts of sodium hypochlorite, 3 parts of sodium hydroxide and 70 parts of deionized water. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Example 3:
the cleaning agent comprises, by mass, 8 parts of polyoxyethylene alkyl ether, 12 parts of tetrapotassium pyrophosphate, 4 parts of sodium hypochlorite, 4 parts of sodium hydroxide and 72 parts of deionized water. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Example 4:
the cleaning agent comprises, by mass, 5 parts of polyoxyethylene alkyl ether, 10 parts of tetrapotassium pyrophosphate, 3 parts of sodium hypochlorite, 2 parts of sodium hydroxide and 80 parts of deionized water. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Comparative example 1:
the cleaning agent comprises, by mass, 10 parts of polyoxyethylene alkyl ether, 20 parts of tetrapotassium pyrophosphate, 5 parts of sodium hypochlorite and 65 parts of deionized water, and does not contain sodium hydroxide. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Comparative example 2:
the cleaning agent comprises, by mass, 10 parts of polyoxyethylene alkyl ether, 20 parts of tetrapotassium pyrophosphate, 5 parts of sodium hydroxide, 65 parts of deionized water and no sodium hypochlorite. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Comparative example 3:
the cleaning agent comprises, by mass, 10 parts of polyoxyethylene alkyl ether, 5 parts of sodium hypochlorite, 5 parts of sodium hydroxide and 80 parts of deionized water, and does not contain tetrapotassium pyrophosphate. The components are stirred and mixed uniformly in a container, and the purity of all the components except deionized water is analytically pure.
Test case
The cleaning agents of the above examples and comparative examples were used to soak and clean the tubes, and then rinsed with water and dried; wherein the soaking time is shown in table 1. The tube was then subjected to performance testing:
instrument and working conditions:
instrument model: ULTIMA (2) (Jobin Yvon Co., france).
The working conditions of the instrument are as follows: the RF power is 1000W, the flow rate of auxiliary gas (Ar) is 0.84L/min, the pressure of an atomizer is 0.25MPa, and the rotating speed of a peristaltic pump is 50r/min. The analysis line with the selected element P is selected as the first line 213.618nm recommended by the instrument.
The experimental results (all measured in the best stable state after 1 hour of preheating of the instrument) are shown in table 1 below. Wherein cps denotes count rate, I 0 Refers to the element strength measured before the tube is cleaned, I refers to the element strength measured after the tube is cleaned, I/I 0 The ratio of the strength before and after the matrix tube is washed is used for representing that the higher the ratio is, the better the washing effect is.
TABLE 1
From the data in table 1, it can be seen that by comparing the intensity changes of the same detection element before and after cleaning the tube, the cleaning agent provided by the embodiment of the invention can thoroughly remove residues on the tube of the inductively coupled plasma emission spectrometer, does not influence the stability of the tube and the ignition of plasma, and prolongs the service life of the tube. The cleaning agent of the comparative example does not achieve the effect of the present invention.
Further, it is apparent from comparative examples 1 to 3 and example 4 that the cleaning effect on the tube is more excellent by using the cleaning agent of the preferred composition of the present invention.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (8)
1. The method for cleaning the rectangular tube of the inductively coupled plasma emission spectrometer is characterized by comprising the following steps of:
(1) Immersing a rectangular tube to be cleaned in a cleaning agent for soaking, wherein the soaking time is not more than 2 hours; immediately washing the rectangular tube with water after soaking; drying; the cleaning agent consists of the following components: 5-15 parts of polyoxyethylene nonionic surfactant, 10-25 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 50-80 parts of deionized water; the mass ratio of the polyoxyethylene nonionic surfactant to the pyrophosphate to the hypochlorite is 2-3:3-4:1, and the hypochlorite is sodium hypochlorite and/or potassium hypochlorite; the polyoxyethylene nonionic surfactant is polyoxyethylene alkyl ether, and the alkali is sodium hydroxide and/or potassium hydroxide;
(2) And then burning the rectangular tube to remove carbon deposition, and then cleaning and drying.
2. The cleaning method according to claim 1, wherein the cleaning agent is composed of: the water-based paint comprises, by mass, 5-10 parts of polyoxyethylene nonionic surfactant, 10-20 parts of pyrophosphate, 3-5 parts of hypochlorite, 2-5 parts of alkali and 60-80 parts of deionized water.
3. The cleaning method according to claim 2, wherein the cleaning agent is composed of: 7-10 parts of polyoxyethylene nonionic surfactant, 12-20 parts of pyrophosphate, 4-5 parts of hypochlorite, 3-5 parts of alkali and 60-75 parts of deionized water.
4. The method of claim 1, wherein the pyrophosphate is tetrapotassium pyrophosphate and/or sodium pyrophosphate.
5. The method according to claim 1, wherein the polyoxyethylene nonionic surfactant is a fatty alcohol polyoxyethylene ether having 32 to 36 carbon atoms, the pyrophosphate is tetrapotassium pyrophosphate, the hypochlorite is sodium hypochlorite, and the alkali is sodium hydroxide.
6. The cleaning method of claim 1, further comprising: repeating the step (1) for a plurality of times; and/or the number of the groups of groups,
the process of flushing the rectangular tube with water comprises the following steps: washing with tap water and then washing with deionized water.
7. The cleaning method according to claim 1, wherein in step (2), the firing temperature is 500 to 700 ℃; and/or the number of the groups of groups,
the burning process comprises the following steps: and placing the rectangular tube into a muffle furnace at the firing temperature, opening a muffle furnace door to allow air to enter, closing, heating to the firing temperature, and repeating for a plurality of times.
8. The cleaning method according to claim 1, wherein in step (2), the cleaning process comprises: the washing is carried out by using volatile organic solvent, and then the washing is carried out by using deionized water.
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| US5466389A (en) * | 1994-04-20 | 1995-11-14 | J. T. Baker Inc. | PH adjusted nonionic surfactant-containing alkaline cleaner composition for cleaning microelectronics substrates |
| CN1872974A (en) * | 2006-06-30 | 2006-12-06 | 天津晶岭电子材料科技有限公司 | Cleaning agent for metal parts, and preparation method |
| CN103323398A (en) * | 2013-06-08 | 2013-09-25 | 首钢总公司 | Maintenance method of inductively coupled plasma emission spectrometer |
| CN109022167A (en) * | 2018-07-02 | 2018-12-18 | 河南绿澳化工科技有限公司 | A kind of vial compound alkaline cleaner and preparation method thereof |
| CN114456884A (en) * | 2021-12-30 | 2022-05-10 | 安莱博医药(苏州)有限公司 | ICP component cleaning agent |
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2022
- 2022-06-27 CN CN202210745161.8A patent/CN114989901B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5466389A (en) * | 1994-04-20 | 1995-11-14 | J. T. Baker Inc. | PH adjusted nonionic surfactant-containing alkaline cleaner composition for cleaning microelectronics substrates |
| CN1872974A (en) * | 2006-06-30 | 2006-12-06 | 天津晶岭电子材料科技有限公司 | Cleaning agent for metal parts, and preparation method |
| CN103323398A (en) * | 2013-06-08 | 2013-09-25 | 首钢总公司 | Maintenance method of inductively coupled plasma emission spectrometer |
| CN109022167A (en) * | 2018-07-02 | 2018-12-18 | 河南绿澳化工科技有限公司 | A kind of vial compound alkaline cleaner and preparation method thereof |
| CN114456884A (en) * | 2021-12-30 | 2022-05-10 | 安莱博医药(苏州)有限公司 | ICP component cleaning agent |
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