CN109596405A - A kind of method of ammonia relative release rate in test sample - Google Patents
A kind of method of ammonia relative release rate in test sample Download PDFInfo
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- CN109596405A CN109596405A CN201811469122.XA CN201811469122A CN109596405A CN 109596405 A CN109596405 A CN 109596405A CN 201811469122 A CN201811469122 A CN 201811469122A CN 109596405 A CN109596405 A CN 109596405A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses a kind of methods of ammonia relative release rate in test sample, comprising the following steps: step 1): the distilled water of setting weight being added in container A, the sample of setting weight is put into container B；Step 2: container A and container B are put into closed container C again, save the time of setting；Step 3): container A is taken out, and tests the pH value of solution in A；Step 4): the testing standard that repeats the above steps product；Step 5): the pH value that standard of comparison product and sample are tested, the pH the high, and the relatively volatile rate of then ammonia is faster.The equipment of the method for test sample release ammonia rate of the invention and its it is simple, quickly, step it is succinct, be suitble to the relative release rate of the preliminary judgement sample ammonia in laboratory.
Description
Technical field
The present invention designs applied chemistry technical field, more particularly to ammonia relative release rate in a kind of test sample
Method.
Background technique
In recent years, as the improvement of people's living standards, more and more people are ready to spend more gold in cosmetics
Money.It is shown according to the beautiful data of intelligence, for China's hair color market in 2016 close to 4,800,000,000 yuan, the hair dye of wherein most is to contain ammonium hydroxide
Oxidative hair dyes.The method that existing technology temporarily can not find substitution ammonium hydroxide completely, and the ammonia taste for moderate stimulation of having hair dyed is that many disappears
The person of expense institute is unacceptable.Many companies are devoted to develop a kind of low ammonia taste or even the hair dye without ammonia taste, therefore are matching
The relatively volatile speed of ammonia that the sample of one group of experiment needs rapid survey, compares hair dye (or other products) in square R&D process
Degree.But in order to quickly screen, eliminate the too fast formula of Ammonia valatilization rate, often these tests only need to obtain opposite
Ammonia valatilization rate improves efficiency of research and development.
And the complicated inconvenient use of general measurement ammonia device, and price is costly, is not suitable for simple, rough judgement
Ammonia valatilization speed.
Summary of the invention
The object of the present invention is to provide a kind of methods of ammonia relative release rate in test sample, have equipment letter
Easily, succinct, the quick advantage of step is suitble to laboratory tentatively to judge the relatively volatile rate of ammonia.
The present invention is achieved by the following technical solutions:
A kind of method of ammonia relative release rate in test sample, which comprises the following steps:
Step 1): the distilled water of setting weight is added in container A, the sample of setting weight is put into container B；
Step 2: container A and container B are put into closed container C again, save the time of setting at a set temperature；
Step 3): container A is taken out, the pH value of solution in test container A；
Step 4): the testing standard that repeats the above steps product；
Step 5): the pH value that standard of comparison product and sample are tested, the relatively volatile rate of the higher ammonia of pH are faster.
The volume of container A is 10-200mL, distillation water consumption is 5-150g.
Preferably, the volume of container A is 30-80mL, distillation water consumption is 20-40g.
The volume of container B is 5-100mL, amount of samples 0.5-50g.
Preferably, the volume of container B be 20-50mL, amount of samples 5-8g.
The volume of container C is 200-10000mL.
Preferably, the volume of container C is 500-5000mL.
Above-mentioned preferred container volume is designed for the common container in laboratory and degree easy to operate, and container is too
Big then amount of samples is big and bad operation, and container is too small to be also unfavorable for operating.
In step 2, the time set is saved as 1min-1h；Preferably, the time set is saved as 10-30min.
The set temperature is 15-35 DEG C.
Container A, container B, container C are selected from laboratory containers；The laboratory containers are selected from glass beaker, PET bottle, no
Become rusty at least one of steel bowl.
The invention has the following beneficial effects:
The method of ammonia relative release rate in test sample of the invention uses the common beaker in laboratory, glass desicator
Deng, can be used pH instrument measurement, also can be used pH test paper measurement.The Ammonia valatilization of one group of laboratory sample can be gone out with quicksort
Rate quickly eliminates the formula of Ammonia valatilization excessive velocities, carries out other research and development to remaining sample formulations.
Specific embodiment
The contents of the present invention are illustrated with embodiment below, but the present invention is not limited by the following examples.
Use equipment:
(1) container A: 50mL beaker；
(2) container B: 30mL beaker；
(3) container C:1L beaker；
(4) pH tester: Shanghai exact science Co., Ltd, PHS-3C.
Embodiment 1: the relatively volatile speed retest of same concentrations ammonium hydroxide:
25 DEG C of test temperature, save the time 20min of setting, example weight 5g, distilled water weight 30g；
| For the first time | Second | For the third time | |
| 0.5% | 8.60 | 8.61 | 8.60 |
| 1% | 9.27 | 9.27 | 9.27 |
| 3.75% | 10.20 | 10.22 | 10.20 |
It can be seen that under mutually synthermal, preservation setting time from the data of embodiment 1, the ammonium hydroxide detection of various concentration is all
It can obtain the repetitive rate of height.Ammonia concn used in general oxidative hair dyes is 2% or so, therefore detection side of the invention
Method can satisfy the research and development demand of most oxidative hair dyes.
Embodiment 2: it is added to the relatively volatile velocity test of hair dye ammonium hydroxide of various concentration ammonium hydroxide:
25 DEG C of test temperature, save the time 20min of setting, example weight 5g, distilled water weight 30g；
| Ammonia concn | 0.5% | 1% | 1.5% |
| pH | 8.60 | 9.27 | 9.71 |
It can be seen that the ammonia concn in pH value and hair dye from embodiment 2 to be positively correlated, i.e. the relatively volatile rate of hair dye ammonia
It is faster, then it is higher to measure pH.
Embodiment 3: the relatively volatile velocity test of hair dye ammonium hydroxide of different dosage forms, identical ammonium hydroxide additional amount:
25 DEG C of test temperature, save the time 20min of setting, example weight 5g, distilled water weight 30g；
| Cream | Aqua | |
| 1% | 9.27 | 9.52 |
| 1.5% | 9.71 | 10.14 |
The rate of volatilization of the ammonia of different dosage forms is different, from embodiment 3 as can be seen that test method of the invention is not for
The relatively volatile rate of ammonia with the hair dye of dosage form also can detecte, compare.
Embodiment 4: same dosage form, identical ammonia concn, the relatively volatile velocity test of ammonium hydroxide after adjusting formula:
25 DEG C of test temperature, save setting time 20min, example weight 5g, distilled water weight 30g；
| Cream formula 1 | Cream is formulated 2(Ammonia valatilization and inhibits) | |
| 1% | 9.27 | 9.05 |
As can be seen from example 4 that formula 1 is higher than the pH value of formula 2, illustrate to inhibit formula 2 adjusted by Ammonia valatilization
Ammonia valatilization rate reduce.
Embodiment 5: the relatively volatile velocity test of ammonium hydroxide under the time that difference saves setting:
25 DEG C of test temperature, example weight 5g, distilled water weight 30g；
| 10min | 20min | 30min | 60min | 24h | |
| 0.5% | 7.90 | 8.60 | 8.70 | 9.53 | 9.93 |
| 1% | 8.63 | 9.27 | 9.38 | 9.92 | 10.20 |
From embodiment 5 as can be seen that 0.5% concentration samples and 1% concentration samples are tested with the extension for saving the time set
To pH value can all increase, in 10min-30min, the difference of 0.5% concentration samples and 1% concentration samples is maintained at 0.7 or so,
Apparent gradient is formed, it is therefore proposed that saving the time set as 10min-30min.
Claims (10)
1. a kind of method of ammonia relative release rate in test sample, which comprises the following steps:
Step 1): the distilled water of setting weight is added in container A, the sample of setting weight is put into container B；
Step 2: container A and container B are put into closed container C again, save the time of setting at a set temperature；
Step 3): container A is taken out, the pH value of solution in test container A；
Step 4): the testing standard that repeats the above steps product；
Step 5): the pH value that standard of comparison product and sample are tested, the relatively volatile rate of the higher ammonia of pH are faster.
2. the method for ammonia relative release rate in test sample according to claim 1, which is characterized in that container A
Volume is 10-200mL, distillation water consumption is 5-150g.
3. the method for ammonia relative release rate in test sample according to claim 2, which is characterized in that container A
Volume is 30-80mL, distillation water consumption is 20-40g.
4. the method for ammonia relative release rate in test sample according to claim 1, which is characterized in that container B
Volume is 5-100mL, amount of samples 0.5-50g.
5. the method for ammonia relative release rate in test sample according to claim 4, which is characterized in that container B
Volume is 20-50mL, amount of samples 5-8g.
6. the method for ammonia relative release rate in test sample according to claim 1, which is characterized in that container C's
Volume is 200-10000mL.
7. the method for ammonia relative release rate in test sample according to claim 6, which is characterized in that container C's
Volume is 500-5000mL.
8. the method for ammonia relative release rate in test sample according to claim 1, which is characterized in that step 2
In, the time set is saved as 1min-1h；Preferably, the time set is saved as 10-30min.
9. the method for ammonia relative release rate in test sample according to claim 1, which is characterized in that described sets
Determining temperature is 15-35 DEG C.
10. the method for ammonia relative release rate in test sample according to claim 1, which is characterized in that container A,
Container B, container C are selected from laboratory containers；The laboratory containers in glass beaker, PET bottle, stainless steel cup at least
It is a kind of.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121365A (en) * | 2001-10-19 | 2003-04-23 | Shimizu Corp | Method and apparatus for metering ammonium gas in the air |
| CN202794089U (en) * | 2012-10-15 | 2013-03-13 | 中国科学院南京地理与湖泊研究所 | Sediment respiration and nitrogen endogenous release in situ determination device |
| CN103344594A (en) * | 2013-07-23 | 2013-10-09 | 河南省建筑科学研究院有限公司 | Method for detecting ammonia emission in coal ash |
| CN203758787U (en) * | 2014-03-26 | 2014-08-06 | 新疆农业科学院土壤肥料与农业节水研究所 | Ammonia volatilization absorbing device for living plants |
| CN106706621A (en) * | 2016-12-22 | 2017-05-24 | 中国科学院南京土壤研究所 | Method for detecting inherent error of ammonia volatilization of farmland by in-situ synchronous correction static chamber method |
-
2018
- 2018-11-27 CN CN201811469122.XA patent/CN109596405A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121365A (en) * | 2001-10-19 | 2003-04-23 | Shimizu Corp | Method and apparatus for metering ammonium gas in the air |
| CN202794089U (en) * | 2012-10-15 | 2013-03-13 | 中国科学院南京地理与湖泊研究所 | Sediment respiration and nitrogen endogenous release in situ determination device |
| CN103344594A (en) * | 2013-07-23 | 2013-10-09 | 河南省建筑科学研究院有限公司 | Method for detecting ammonia emission in coal ash |
| CN203758787U (en) * | 2014-03-26 | 2014-08-06 | 新疆农业科学院土壤肥料与农业节水研究所 | Ammonia volatilization absorbing device for living plants |
| CN106706621A (en) * | 2016-12-22 | 2017-05-24 | 中国科学院南京土壤研究所 | Method for detecting inherent error of ammonia volatilization of farmland by in-situ synchronous correction static chamber method |
Non-Patent Citations (3)
| Title |
|---|
| 李家瑞 等: "《工业企业环境保护》", 31 August 1992, 冶金工业出版社 * |
| 赵福岐: "《基础化学实验》", 31 August 2006, 四川大学出版社 * |
| 郎德山: "《土肥水管理技术问答》", 31 January 2012, 金盾出版社 * |
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Application publication date: 20190409 |