CN111812088A - Method for accurately detecting content of quaternary ammonium salt cations in alkaline wastewater - Google Patents
Method for accurately detecting content of quaternary ammonium salt cations in alkaline wastewater Download PDFInfo
- Publication number
- CN111812088A CN111812088A CN202010677277.3A CN202010677277A CN111812088A CN 111812088 A CN111812088 A CN 111812088A CN 202010677277 A CN202010677277 A CN 202010677277A CN 111812088 A CN111812088 A CN 111812088A
- Authority
- CN
- China
- Prior art keywords
- quaternary ammonium
- ammonium salt
- accurately detecting
- alkaline wastewater
- detection reagent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- -1 quaternary ammonium salt cations Chemical class 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000002351 wastewater Substances 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 29
- 238000004448 titration Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000000873 masking effect Effects 0.000 claims description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 5
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 claims description 3
- 229940074439 potassium sodium tartrate Drugs 0.000 claims description 3
- LBUSGXDHOHEPQQ-UHFFFAOYSA-N propane-1,1,1-triol Chemical compound CCC(O)(O)O LBUSGXDHOHEPQQ-UHFFFAOYSA-N 0.000 claims description 3
- 235000011006 sodium potassium tartrate Nutrition 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 235000010265 sodium sulphite Nutrition 0.000 claims description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims 7
- 238000004458 analytical method Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 15
- 239000000126 substance Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000004965 peroxy acids Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000009614 chemical analysis method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000000944 Soxhlet extraction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- 238000002137 ultrasound extraction Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/79—Photometric titration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/82—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
- G01N31/162—Determining the equivalent point by means of a discontinuity
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to a method for accurately detecting the content of quaternary ammonium salt cations in alkaline wastewater, which comprises the steps of placing a water sample to be detected in a conical flask; preparing a quaternary ammonium salt cation detection reagent; dropwise adding a certain amount of quaternary ammonium salt cation detection reagent into the conical flask and shaking up; and titrating the prepared liquid by using the titration solution, recording the dosage of the titration solution, and calculating the quaternary ammonium salt cation in the water sample. The method only needs the quaternary ammonium salt cation detection reagent, the burette and the like, can quickly detect the concentration of the quaternary ammonium salt cation in the water sample, has simple operation, and can meet the requirements of on-site real-time operation and quick analysis of a large number of samples; the method has the advantages of strong anti-interference capability, strong adaptability and the like, and can accurately detect the concentration of the quaternary ammonium salt cation in the object to be detected under the conditions of large interference and uncertain concentration pH value of the object to be detected; the method has higher detection precision, can ensure higher detection precision compared with an instrumental analysis method, can make up for the defects of instrumental analysis, and enriches the diversity of the detection method.
Description
Technical Field
The invention relates to a method for accurately detecting the content of quaternary ammonium salt cations in alkaline wastewater.
Background
In the integrated circuit manufacturing industry of display panel (such as liquid crystal display and organic light emitting diode display) control integrated circuits, chip integrated circuits, solar panel control integrated circuits and the like, alkali substances containing quaternary ammonium salt cations, such as tetramethyl ammonium hydroxide, tetraethyl ammonium hydroxide, tetrabutyl ammonium hydroxide and the like, are mainly applied to a plurality of process steps required by integrated circuit production, can be used as components of developers, surfactants, wetting agents and the like, and are wet electronic chemicals widely applied due to the characteristics of good application characteristics, no introduction of impurities, anions and cations and easy removal.
Most of quaternary ammonium salt is white, light yellow crystal, colloid or powder, the property is similar to inorganic ammonium salt, the water solubility is good under general conditions, and the aqueous solution is conductive; however, with the increase of the length of the alkyl chain in the quaternary ammonium cation, the water solubility is in a descending trend, and the direct discharge into the environment causes serious pollution such as overproof ammonia nitrogen and the like, thereby bringing great environmental protection pressure to application merchants and greatly increasing the use cost; on the other hand, from the viewpoint of environmental protection and economic efficiency, most of quaternary ammonium salt cationic compounds still have recycling value after being used, the recycling can solve the problem of raw material sources in product recycling production, and the production cost can be greatly reduced, so that application manufacturers can also obtain benefits from the products.
At present, the content of quaternary ammonium salt cations is determined by adopting unified detection of ammonia nitrogen ions under most conditions, and the methods cannot be accurately operated and are inconvenient in operation aspect;
the patent with publication number CN106596530A discloses a method for rapidly detecting the residual concentration of quaternary ammonium salt, which combines a quaternary ammonium salt (i) reagent and a quaternary ammonium salt (ii) reagent with a liquid to be detected to generate a color reaction under an acidic condition, judges the concentration of the quaternary ammonium salt according to the color, can only roughly determine the concentration range of the quaternary ammonium salt in the waste liquid, cannot perform detection under the conditions of a large amount of interference in the waste water and unclear environmental acidity and alkalinity, and has limited detection precision;
chinese patent application publication No. CN101256174A discloses a method for detecting alkyl quaternary ammonium salt cationic surfactant, comprising the following steps: 1. pretreating the detected sample by using a Soxhlet extraction method or an ultrasonic extraction method; 2. detecting with gas chromatography-mass spectrometer, and separating each component of the sample decomposition product with chromatographic column and performing mass spectrometry. Although the method can accurately detect the quaternary ammonium salt cations, the application environment is limited, the requirement on equipment and experimental conditions is high, and the method cannot meet the rapid and large-scale detection requirement on the site;
the detection methods of quaternary ammonium salt cations reported in the literature are divided into chemical analysis methods and instrumental analysis methods. The chemical analysis method is an analysis method based on the chemical reaction of quaternary ammonium salt cations and an anion reagent or a precipitator, is suitable for measuring single quaternary ammonium salt cations with known relative molecular mass or measuring the total amount of compound quaternary ammonium salt cations, and can detect the quaternary ammonium salt cations in a sample more quickly but is not accurate enough and only can measure the approximate range of the concentration of the quaternary ammonium salt cations; when the quaternary ammonium salt cation species are undefined and the concentration is low, an instrumental analysis method is required; the instrumental analysis method mainly comprises gas chromatography, liquid chromatography, spectrophotometry and the like, and is used for carrying out qualitative and quantitative analysis according to certain physical properties or certain properties in chemical change of quaternary ammonium salt cations.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the method for accurately detecting the content of the quaternary ammonium salt cations in the alkaline wastewater, which is simple to operate, has low requirements on equipment, and can efficiently and accurately detect the content of the quaternary ammonium salt cations in the waste liquid.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for accurately detecting the content of quaternary ammonium salt cations in alkaline wastewater comprises the following steps:
(1) placing a water sample to be detected in a conical flask;
(2) preparing a quaternary ammonium salt cation detection reagent;
(3) dropwise adding a certain amount of the quaternary ammonium salt cation detection reagent prepared in the step (2) into the conical flask in the step (1) and shaking up;
(4) titrating the liquid prepared in the step (3) with a titration solution, and recording the dosage of the titration solution;
(5) and (4) calculating the quaternary ammonium salt cations in the water sample according to the dosage of the titration solution used in the step (4).
Preferably, the quaternary ammonium salt cation detection reagent comprises the following components in parts by mass:
100 parts of formaldehyde, 50-100 parts of sodium tetraphenylborate, 5-50 parts of sodium hydroxide and 5-30 parts of daphne yellow.
Preferably, the quaternary ammonium salt cation detection reagent further comprises a stabilizer.
Preferably, the stabilizer is one or more of sodium sulfite, sodium sulfate, sodium thiosulfate and the like.
Preferably, the quaternary ammonium salt cation detection reagent further comprises a masking agent.
Preferably, the masking agent is one or more of tartaric acid, citric acid, dihydroxypropanol, potassium sodium tartrate, and the like.
Preferably, the titration solution is one of cetyltrimethylammonium chloride and cetyltrimethylammonium bromide.
Preferably, the quaternary ammonium salt cation detection reagent is added into the conical flask in the step (1) in an amount of 10-50 mu L/ml.
The method for accurately detecting the content of the quaternary ammonium salt cations in the alkaline wastewater prepared by the method has the beneficial effects that:
1. the method only needs the quaternary ammonium salt cation detection reagent, the burette and the like, can quickly detect the concentration of the quaternary ammonium salt cation in the water sample, has simple operation, and can meet the requirements of on-site real-time operation and quick analysis of a large number of samples.
2. The method has the advantages of strong anti-interference capability, strong adaptability and the like, and can accurately detect the concentration of the quaternary ammonium salt cation in the object to be detected under the conditions of large interference and uncertain concentration pH value of the object to be detected.
3. The invention has higher detection precision, can ensure higher detection precision compared with an instrumental analysis method, can make up for the defects of instrumental analysis and enriches the diversity of the detection method.
Detailed Description
The following embodiments are further described in detail with reference to the following examples, which are only used to more clearly illustrate the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.
Example 1
(1) Firstly, putting 1ml of the prepared water sample with 0.5 percent of quaternary ammonium salt cation concentration into a conical flask;
(2) pretreatment of a sample to be detected, wherein pretreatment of quaternary ammonium salt cation detection needs a reagent containing sodium tetraphenylborate, the sodium tetraphenylborate can be decomposed in an overheated and peracid environment and is not beneficial to storage, and the sodium tetraphenylborate is configured on site and detected in concentration according to the chemical industry standard of HG/T3483-; uniformly mixing 100 parts of formaldehyde, 50 parts of sodium tetraphenylborate, 5 parts of sodium hydroxide and 5 parts of danhuang, and then dropwise adding the mixture into a water sample;
(3) slowly dripping a certain amount of cetyl trimethyl ammonium bromide as a quaternary ammonium salt cation detection reagent while shaking the conical flask uniformly;
(4) titrating the liquid prepared in the step (3) with a titration solution, and recording the dosage of the titration solution;
(5) according to the dosage of the titration solution used in the step (4), the mass of the quaternary ammonium salt cation in the water sample is calculated to be 0.00497g by a simplified formula c = 1-V/10.5, and the detection accuracy in the detection is calculated to be up to 99.4%.
Example 2
(1) Firstly, placing 1ml of the prepared water sample with the quaternary ammonium salt cation concentration of 1.5% in a conical flask;
(2) pretreatment of a sample to be detected, wherein pretreatment of quaternary ammonium salt cation detection needs a reagent containing sodium tetraphenylborate, the sodium tetraphenylborate can be decomposed in an overheated and peracid environment and is not beneficial to storage, and the sodium tetraphenylborate is configured on site and detected in concentration according to the chemical industry standard of HG/T3483-; uniformly mixing 100 parts of formaldehyde, 100 parts of sodium tetraphenylborate, 50 parts of sodium hydroxide and 30 parts of danhuang, and then dripping into a water sample;
(3) slowly dripping hexadecyl trimethyl ammonium chloride serving as a quaternary ammonium salt cation detection reagent while shaking uniformly in a conical flask;
(4) titrating the liquid prepared in the step (3) with a titration solution, and recording the dosage of the titration solution;
(5) according to the dosage of the titration solution used in the step (4), the mass of the quaternary ammonium salt cation in the water sample is calculated to be 0.0149g by a simplified formula c = 1-V/10.5, and the detection accuracy in the detection is up to 99.2%.
Example 3
(1) Firstly, placing 1ml of the prepared water sample with the quaternary ammonium salt cation concentration of 2.5 percent in a conical flask;
(2) the method comprises the following steps of pretreating a sample to be detected, wherein a reagent containing sodium tetraphenylborate is required for pretreatment of quaternary ammonium salt cation detection, the sodium tetraphenylborate can be decomposed in an overheated and peracid environment and is not beneficial to storage, and the sodium tetraphenylborate is subjected to field configuration and concentration detection according to the chemical industry standard of HG/T3483-; uniformly mixing 100 parts of formaldehyde, 75 parts of sodium tetraphenylborate, 6 parts of sodium hydroxide and 10 parts of danhuang, and then dripping into a water sample;
(3) slowly dripping cetyl trimethyl ammonium bromide serving as a quaternary ammonium salt cation detection reagent while shaking uniformly in a conical flask;
(4) titrating the liquid prepared in the step (3) with a titration solution, and recording the dosage of the titration solution;
(5) and (3) according to the dosage of the titration solution used in the step (4), calculating the mass of the quaternary ammonium salt cation in the water sample to be 0.0249g by using a simplified formula c = 1-V/10.5, and calculating to obtain that the detection accuracy in the detection is up to 99.8%.
In the above embodiment, the quaternary ammonium salt cation detection reagent further includes a stabilizer, where the stabilizer is one or more of sodium sulfite, sodium sulfate, sodium thiosulfate, and the like; the quaternary ammonium salt cation detection reagent also comprises a masking agent, wherein the masking agent is one or more of tartaric acid, citric acid, dihydroxypropanol, potassium sodium tartrate and the like; the titration solution is one of hexadecyl trimethyl ammonium chloride and hexadecyl trimethyl ammonium bromide.
The detection method can be used for detecting short-chain quaternary ammonium salt cations and long-chain quaternary ammonium salt cations, sodium tetraphenylborate can generate white precipitates with the quaternary ammonium salt cations to be detected in an alkaline environment, excessive sodium tetraphenylborate can be titrated by cetyl trimethyl ammonium bromide, the cetyl trimethyl ammonium bromide and dadanhuang can generate pink substances at the end point, and the quaternary ammonium salt cation detection reagent is used for accurately detecting the content of the quaternary ammonium salt cations in alkaline wastewater, so that the detection method has an excellent effect, and the accuracy can reach more than 99%.
In conclusion, the method only needs the quaternary ammonium salt cation detection reagent, the burette and the like, can quickly detect the concentration of the quaternary ammonium salt cation in the water sample, has the advantages of simple operation, capability of meeting the requirements of field real-time operation and quick analysis of a large number of samples, strong anti-interference capability, strong adaptability and the like, can accurately detect the concentration of the quaternary ammonium salt cation TMA + in the object to be detected under the conditions of large interference and uncertain concentration pH value of the object to be detected, has higher detection precision, can ensure higher detection precision compared with an instrumental analysis method, can make up the defects of instrumental analysis, and enriches the diversity of the detection method.
The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Claims (8)
1. The method for accurately detecting the content of quaternary ammonium salt cations in the alkaline wastewater is characterized by comprising the following steps of:
(1) placing a water sample to be detected in a conical flask;
(2) preparing a quaternary ammonium salt cation detection reagent;
(3) dropwise adding a certain amount of the quaternary ammonium salt cation detection reagent prepared in the step (2) into the conical flask in the step (1) and shaking up;
(4) titrating the liquid prepared in the step (3) with a titration solution, and recording the dosage of the titration solution;
(5) and (4) calculating the quaternary ammonium salt cations in the water sample according to the dosage of the titration solution used in the step (4).
2. The method for accurately detecting the content of the quaternary ammonium salt cations in the alkaline wastewater as claimed in claim 1, wherein the quaternary ammonium salt cation detection reagent comprises the following components in parts by mass:
100 parts of formaldehyde, 50-100 parts of sodium tetraphenylborate, 5-50 parts of sodium hydroxide and 5-30 parts of daphne yellow.
3. The method for accurately detecting the cationic content of quaternary ammonium salt in the alkaline wastewater as claimed in claim 2, wherein the reagent for detecting the cationic content of quaternary ammonium salt further comprises a stabilizer.
4. The method for accurately detecting the cationic content of quaternary ammonium salt in alkaline wastewater as claimed in claim 3, wherein the stabilizer is one or more of sodium sulfite, sodium sulfate, sodium thiosulfate and the like.
5. The method for accurately detecting the cationic content of quaternary ammonium salt in the alkaline wastewater as claimed in claim 2, wherein the quaternary ammonium salt cationic detection reagent further comprises a masking agent.
6. The method for accurately detecting the cationic content of the quaternary ammonium salt in the alkaline wastewater as claimed in claim 5, wherein the masking agent is one or more of tartaric acid, citric acid, dihydroxypropanol, potassium sodium tartrate and the like.
7. The method for accurately detecting the cationic content of the quaternary ammonium salt in the alkaline wastewater as claimed in claim 1, wherein the titration solution is one of cetyltrimethylammonium chloride and cetyltrimethylammonium bromide.
8. The method for accurately detecting the cationic content of the quaternary ammonium salt in the alkaline wastewater as claimed in claim 1, wherein the amount of the quaternary ammonium salt cationic detection reagent added into the conical flask in the step (1) is 10 to 50 μ L/ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677277.3A CN111812088A (en) | 2020-07-14 | 2020-07-14 | Method for accurately detecting content of quaternary ammonium salt cations in alkaline wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677277.3A CN111812088A (en) | 2020-07-14 | 2020-07-14 | Method for accurately detecting content of quaternary ammonium salt cations in alkaline wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111812088A true CN111812088A (en) | 2020-10-23 |
Family
ID=72866232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010677277.3A Pending CN111812088A (en) | 2020-07-14 | 2020-07-14 | Method for accurately detecting content of quaternary ammonium salt cations in alkaline wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111812088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137149A (en) * | 2021-11-25 | 2022-03-04 | 中国石油大学(北京) | Method for detecting content of quaternary ammonium salt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237219A (en) * | 2014-08-20 | 2014-12-24 | 浙江大学 | Semi-quantitative detection method of quaternary ammonium salt of water quality |
| CN105116083A (en) * | 2015-07-08 | 2015-12-02 | 北京中海诚达科贸有限公司 | Method for simultaneously determining content of ethylene glycol phenyl ether and quaternary ammonium salt in disinfectant |
| CN109425686A (en) * | 2017-09-01 | 2019-03-05 | 中石化石油工程技术服务有限公司 | A kind of detection method of the cationic degree of drilling fluid synthetic polymer |
-
2020
- 2020-07-14 CN CN202010677277.3A patent/CN111812088A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237219A (en) * | 2014-08-20 | 2014-12-24 | 浙江大学 | Semi-quantitative detection method of quaternary ammonium salt of water quality |
| CN105116083A (en) * | 2015-07-08 | 2015-12-02 | 北京中海诚达科贸有限公司 | Method for simultaneously determining content of ethylene glycol phenyl ether and quaternary ammonium salt in disinfectant |
| CN109425686A (en) * | 2017-09-01 | 2019-03-05 | 中石化石油工程技术服务有限公司 | A kind of detection method of the cationic degree of drilling fluid synthetic polymer |
Non-Patent Citations (2)
| Title |
|---|
| 吴文桢等: "低碳链季铵盐定量分析方法的改进", 《化学工程》 * |
| 李彦等: "四苯硼钠返滴定法测定季铵盐研究", 《西安石油大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137149A (en) * | 2021-11-25 | 2022-03-04 | 中国石油大学(北京) | Method for detecting content of quaternary ammonium salt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100478677C (en) | Method for analyzing total phosphorus content in sample | |
| WO2011146749A4 (en) | Testing method and kit for detecting lead, mercury and chromate in paint, varnish and other surface coatings | |
| CN111812088A (en) | Method for accurately detecting content of quaternary ammonium salt cations in alkaline wastewater | |
| US3975155A (en) | Quantitative method for detecting 3-isothiazolones | |
| CN101131340B (en) | Method for preparing aluminum alloy solution example when detecting aluminum alloy constituent by plasma spectroscopic method | |
| CN108956595B (en) | High-stability reagent for colorimetric detection of ammonium radicals rapidly | |
| CN113655168A (en) | Method for measuring chloride ions in electronic-grade hydrogen bromide through ion chromatography | |
| CN110423609B (en) | Fluorescent probe for identifying thiocyanate radical and preparation and identification method thereof | |
| Okada et al. | Ion chromatographic determination of silicic acid in natural water | |
| CN1185487C (en) | Test paper for detecting total hardness of water and its prepn process | |
| CN101308121A (en) | Sulfonic acid analog anion surfactants rapid checking method | |
| Drochioiu | Highly selective and sensitive reaction of cyanide with 2, 2-dihydroxy-1, 3-indanedione | |
| CN107462643A (en) | The assay method of thiourea dioxide in a kind of food additives | |
| CN109020917B (en) | Fluorescent molecular probe for identifying phosphate ions in water environment and preparation method thereof | |
| JP2005069746A (en) | Back extraction method of silicomolybdic acid and silicon quantifying method using silicomolybdic acid (blue) absorptiometric method | |
| Morosanova et al. | Length-of-stain indicator tubes for the determination of metals in water and solutions | |
| JP2017207377A (en) | Mass spectrometry method | |
| CN106885871A (en) | A kind of assay method of complicated solution middle and high concentration sulfate radical | |
| US3479152A (en) | Chelometric zinc titration | |
| Bald et al. | Reversed-phase high-performance liquid chromatographic determination of sulphide in an aqueous matrix using 2-iodo-1-methylpyridinium chloride as a precolumn ultraviolet derivatization reagent | |
| Ananthanarayanan et al. | Digital conductometry for determination of boron in light water and heavy water at trace levels | |
| US4396718A (en) | Field test method for estimation of concentration of organic materials in water | |
| US4268269A (en) | Field test method for estimation of concentration of organic materials in water | |
| McClure et al. | Direct Determination of Acetic Acid in Acetic Anhydride | |
| AU2019101307A4 (en) | Method and kit for detection of cyanide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |
|
| RJ01 | Rejection of invention patent application after publication |