CN1044743C - Preparation method for ammonium indicator paper - Google Patents
Preparation method for ammonium indicator paper Download PDFInfo
- Publication number
- CN1044743C CN1044743C CN 96122593 CN96122593A CN1044743C CN 1044743 C CN1044743 C CN 1044743C CN 96122593 CN96122593 CN 96122593 CN 96122593 A CN96122593 A CN 96122593A CN 1044743 C CN1044743 C CN 1044743C
- Authority
- CN
- China
- Prior art keywords
- filter paper
- paper
- ammonium
- milligram
- potassium iodide
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention belongs to chemical test paper for detecting the concentration of ammonium ions, which is prepared from filter paper immersed by potassium iodide, mercury iodide and sodium hydroxide, wherein the filter paper of each square centimeter contains 0.65 to 6.6 mg of potassium iodide, 0.80 to 7.5 mg of mercury iodide and 0 to 0.35 mg of sodium hydroxide. Compared with other methods for detecting the concentration of ammonium ions, the method reduces the reagent content by dozens of times to hundreds of times, and the detection condition is simple; thereby, the present invention has the advantages of convenience, rapidness and low cost when the present invention is used for detecting the concentration of ammonium ions in samples. The present invention can be operated by non-specialized persons, and can be widely used for detecting ammonio content in various samples such as chemical fertilizer, soil, nutrient solution, sewage, etc.
Description
The invention belongs to chemical test paper, specifically detect the ammonium chemistry test paper of ammonium concentration.
Existing document (is compiled " chemical fertilizer check ", China Financial ﹠ Economic Publishing, 1976 as the commodity inspection group; Shaanxi analytical chemistry teaching and research room of department of chemistry of Normal University, " agriculture chemistry common analysis ", Shaanxi science and technology publishing house, 1980; K.R.Middleton J.Appl.Chem., p 281-286,10, July, 1960) in the detection method of relevant ammonium ion of report gravimetric method, volumetric method, spectrophotometric method, colourimetry etc. are arranged.All these methods must be carried out with various chemical wares, instrument and reagent by the specialty analysis personnel in that chemical experiment is indoor, detect a sample that contains ammonium ion and need spend several units to dozens of yuan, and detection speed is slow, and formality is numerous and diverse.
The purpose of this invention is to provide a kind of detection easy, quick, that expense is low and contain sample ammonium indicator paper of ammonium ion and preparation method thereof.
Ammonium indicator paper of the present invention is to be made of the filter paper that has flooded potassium iodide, mercuric iodixde and NaOH, contains potassium iodide 0.65-6.6 milligram in each square centimeter filter paper, mercuric iodixde 0.80-7.5 milligram and NaOH 0-0.35 gram.Used filter paper can be filter paper or other suctions are used in common filter paper or qualitative analysis with filter paper or chromatographic analysis with filter paper or quantitative test blank sheet of paper.
The preparation of ammonium indicator paper of the present invention is carried out according to the following steps:
1. reagent preparation solution is got and is analyzed pure or chemical pure potassium iodide, mercuric iodixde and NaOH, is dissolved in that to be mixed with concentration in the distilled water be every milliliter of solution that contains potassium iodide 42-420 milligram, mercuric iodixde 56-570 milligram and NaOH 0-25 milligram;
2. dipping all immerses filter paper (common filter paper or qualitative analysis with filter paper or quantitative test with filter paper or the chromatographic analysis blank sheet of paper with filter paper or other suctions) in the solution 1. about 30 seconds kinds;
3. be shaped, take out the test paper that soaks after the suction, at room temperature dry, or dry being lower than under 60 ℃ the temperature, be cut into small pieces this ammonium indicator paper (16-400 square millimeter): stick with glue plastics hardboard one end at strip, promptly make the ammonium indicator paper bar.
The using method of ammonium indicator paper is as follows: ammonium indicator paper is immersed in the solution (alkali concn is the 2-3 molar sodium hydroxide) of the sample that contains ammonium ion, 1-2 takes out after second, after 1 minute.The color that is shown on this test paper is compared with standard color card, can declare on the concentration test paper of knowing contained ammonium ion in the sample and show color, along with the increase of ammonium concentration, apparent color adds gradually from yellow and is deep to brown.
The method for production of standard color card is: what take by weighing that sodium hydroxide solution that ammonium chloride (analyze pure, 105 ℃ of oven dry) is dissolved in the 2-3 volumetric molar concentration disposes a series of accurate concentration contains ammonium ion (can be converted into nitrogen) solution, contains from 0 to 1.0 milligram of nitrogen/milliliter of nitrogen concentration.Ammonium indicator paper is immersed respectively in the solution of each accurate concentration, 1-2 takes out after second, treats to record tristimulus values with spectrophotometer or photoelectric integration colour photometer after 2-3 minute.Connect this value modulation printing ink, be applied on art paper or the single gummed paper, promptly make standard color card.Each concentration of ammonium ion (or nitrogen) is corresponding to a kind of color on the standard color card.
The present invention compared with prior art, the advantage that has is: the content of the reagent on the ammonium indicator paper (potassium iodide, mercuric iodixde and NaOH) is only surveyed one tens to several percent of ammonium concentration method agents useful for same amount for other, it is simple relatively to test required condition, therefore greatly reduce testing expense, detect a sample and only need about 1 yuan.The operation that detects ammonium concentration with the present invention is very easy, quick, by the just concentration of contained ammonium ion in the decidable sample of the ammonium indicator paper after the visual relatively colour developing and the color on the standard color card.Amateur analyst also can test, and also need not carry out in special laboratory.The present invention is safe and reliable, be widely used, can be used for measuring various nitrogenous fertilizer, soil, crops hydroponics nutrient solution, various ammonium (nitrogen) content that contains in ammonium salt solution and the sewage, and table 1 is the comparison of measuring nitrogenous sample and standard method measurement result with ammonium indicator paper.
Outstanding substantive distinguishing features of the present invention and progress can be embodied in the following embodiments, but they do not impose any restrictions the present invention.
Embodiment 1.
Preparation contains the solution that potassium iodide and mercuric iodixde concentration are respectively 42 and 56 mg/ml, qualitative analysis was all immersed in this solution 30 seconds with filter paper, taking out the back dries in 50 ℃ baking oven, be cut into 10 * 5 square millimeters fritter again, promptly make and contain the ammonium indicator paper that potassium iodide, mercuric iodixde are respectively 0.65,0.80 milli gram per square centimeter.Stick at plastics hardboard bar one end.With ammonium indicator paper one end of this strip, immerse in the tested ammonium phosphate chemical fertilizer sample solution, 1-2 takes out after second, it is compared with standard color card after spending 1 minute, records that ammonium content is 8.0 (N%) in the sample.Use again and record with quadrat method that ammonium content is 40 (N%) in the urea sample.Measured result is compared its result be more or less the same (seeing Table 1) with the result who records with standard method.
Embodiment 2
The preparation process of ammonium indicator paper and using method are with embodiment 1, just potassium iodide, mercuric iodixde and concentration sodium hydroxide are respectively 86,115 and 22 mg/ml in institute's obtain solution, contain potassium iodide, mercuric iodixde and NaOH in the gained ammonium indicator paper and are respectively 1.1,1.5 and 0.30 milligrams/centimetre
2, be used for surveying ammonium nitrate (ammonium nitrogen) fertilizer sample, recording its ammonium content is 16 (N%); Measure the Diammonium phosphate (DAP) sample, recording its ammonium content is 16 (N%), sees Table 1 with the result's contrast that records with standard method.
Embodiment 3.
The preparation process of ammonium indicator paper and using method are with embodiment 1, just potassium iodide and mercuric iodixde and concentration sodium hydroxide are respectively 420,570 and 25 mg/ml in institute's obtain solution, contain potassium iodide and mercuric iodixde and NaOH in the gained ammonium indicator paper and are respectively 6.6,7.5 and 0.35 milligrams/centimetre
2, being used for measuring the ammonium content in the calcium superphosphate chemical fertilizer sample, the result is 0 (N%), is used for measuring the ammonium content in the monoammonium phosphate chemical fertilizer sample, the result is 12 (N%).See Table 1 with the result's contrast that records with standard method.Table 1:
| Sample title (chemical fertilizer) | Measurement results (N%) | |
| Standard (GB8572-88) method | The ammonium indicator paper method | |
| Ammonium phosphate | 6.49 | 8.0 |
| Urea | 46.69 | 40 |
| Ammonium nitrate (ammonium nitrogen) | 17.66 | 16 |
| Diammonium phosphate (DAP) | 18.22 | 16 |
| Calcium superphosphate | 0.57 | 0 |
| Monoammonium phosphate | 12.52 | 12 |
Claims (3)
1. an ammonium indicator paper is characterized in that it is to be made of the filter paper that has flooded potassium iodide, mercuric iodixde and NaOH, contains potassium iodide 0.65-6.6 milligram, mercuric iodixde 0.80-7.5 milligram and NaOH 0-0.35 milligram in each square centimeter filter paper.
2. ammonium indicator paper according to claim 1 is characterized in that used filter paper is filter paper or other suctions are used in common filter paper or qualitative analysis with filter paper or chromatographic analysis with filter paper or quantitative test blank sheet of paper.
3. method for preparing the described ammonium indicator paper of claim 1 is characterized in that it being to carry out as follows:
1. reagent preparation solution is got and is analyzed pure or chemical pure potassium iodide, mercuric iodixde and NaOH, is dissolved in that to be mixed with concentration in the distilled water be every milliliter of solution that contains potassium iodide 42-420 milligram, mercuric iodixde 56-570 milligram and NaOH 0-25 milligram;
2. dipping all immerses filter paper (common filter paper or qualitative analysis with filter paper or quantitative test with filter paper or the chromatographic analysis blank sheet of paper with filter paper or other suctions) in the solution 1. about 30 seconds kinds;
3. be shaped, the test paper after the suction is soaked in taking-up, at room temperature dries, or dry being lower than under 60 ℃ the temperature, this ammonium indicator paper is cut into small pieces (16-400 square millimeter), sticks with glue plastics hardboard one end, promptly make the chemical test strips that detects ammonium concentration at strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96122593 CN1044743C (en) | 1996-11-15 | 1996-11-15 | Preparation method for ammonium indicator paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96122593 CN1044743C (en) | 1996-11-15 | 1996-11-15 | Preparation method for ammonium indicator paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1159580A CN1159580A (en) | 1997-09-17 |
| CN1044743C true CN1044743C (en) | 1999-08-18 |
Family
ID=5127377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96122593 Expired - Fee Related CN1044743C (en) | 1996-11-15 | 1996-11-15 | Preparation method for ammonium indicator paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044743C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304835C (en) * | 2004-07-06 | 2007-03-14 | 陕西科技大学 | Method for rapid detection of ammonium salts in fresh milk |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100988C (en) * | 1998-08-17 | 2003-02-05 | 中国科学院动物研究所 | Test paper for monitoring the resistance of pests to organophosphorus insecticide and its preparing process |
| CN102033063A (en) * | 2010-10-28 | 2011-04-27 | 上海绿帝环保科技有限公司 | Preparation and use method of color comparison detection piece for ammonia nitrogen in water |
| CN108072652A (en) * | 2016-11-28 | 2018-05-25 | 上海泓宝绿色水产股份有限公司 | A kind of ammonia nitrogen detecting system and its application method for being used to detect that ammonia nitrogen concentration is 0.5-6mg/L |
-
1996
- 1996-11-15 CN CN 96122593 patent/CN1044743C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304835C (en) * | 2004-07-06 | 2007-03-14 | 陕西科技大学 | Method for rapid detection of ammonium salts in fresh milk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1159580A (en) | 1997-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Vendrell et al. | Determination of soil nitrate by transnitration of salicylic acid | |
| US20060003459A1 (en) | Determining enantiomeric excess using indicator-displacement assays | |
| CN108776132A (en) | The simple test paper of ammonia and its preparation and assay method in a kind of measurement air | |
| Steckel et al. | Simultaneous determinations of phosphorus, potassium, calcium, and magnesium in wet digestion solutions of plant tissue by autoanalyzer | |
| CN101887054A (en) | Method for preparing phosphorous detecting test paper | |
| CN106442515A (en) | Simple and low-cost silver ion visual quantitative detection method | |
| CN108535246A (en) | The test paper of semiquantitative determination ammonia concentration in air and its preparation and assay method | |
| CN1044743C (en) | Preparation method for ammonium indicator paper | |
| CN103487398B (en) | A kind of analytical method of lysine fermentation liquor | |
| CN102590371A (en) | Method for detecting type and content of organic acids in cured tobacco root secretion | |
| CN1044744C (en) | Preparation method for phosphorus indicator paper | |
| Houba et al. | Quality aspects in laboratories for soil and plant analysis | |
| CN101661002B (en) | Preparation method and use method of reagent for determining total phenol in water | |
| US7241623B2 (en) | Lithium detection in liquid biological samples and reagents therefor | |
| US3973911A (en) | Sulfur oxide determination | |
| Syltie et al. | Rapid tissue tests as indicators of yield, plant composition, and soil fertility for corn and soybeans | |
| AU2021104197A4 (en) | Method for rapid determination of total paraoxons by UV-Vis spectrometry | |
| CN115308181A (en) | Ratio fluorescence paper-based sensor for in-situ visual detection of soil ammonium nitrogen | |
| CN101887055B (en) | Method for preparing mercury-free ammonium detection test paper | |
| Waughman et al. | Interference due to major elements during the estimation of trace heavy metals in natural materials by atomic absorption spectrophotometry | |
| CN108776113A (en) | A kind of application of double-core Complexes of Uranyl in ATP analyses | |
| CN1769873A (en) | Strip for quickly determining nitrous radical content in vegetable, preparation and determination method thereof | |
| CN112903610B (en) | Method for identifying phloem sap property | |
| Llobat-Estelles et al. | Kinetic-catalytic determination of cobalt by oxidation of Pyrogallol Red by hydrogen peroxide | |
| CN116973431A (en) | Simultaneous determination of plants 15 Method for detecting N isotope abundance and nitrogen content |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |