CN104406962A - Kit for quickly detecting lead ion in water sample and use method of kit - Google Patents
Kit for quickly detecting lead ion in water sample and use method of kit Download PDFInfo
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- CN104406962A CN104406962A CN201410679482.8A CN201410679482A CN104406962A CN 104406962 A CN104406962 A CN 104406962A CN 201410679482 A CN201410679482 A CN 201410679482A CN 104406962 A CN104406962 A CN 104406962A
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Abstract
The invention relates to a kit for quickly detecting lead ions in a water sample and a use method of the kit. The kit and the method are suitable for quickly detecting the lead ions in the water sample. The kit for quickly detecting the lead ions in the water sample comprises the following components: a masking agent, a color developing agent 1, a color developing agent 2, a buffer agent, a test tube, a dropper with a rubber head and standard pH paper. While in use, judging whether precipitation is generated in a reaction liquid or not is used for detecting the remaining of lead ions in the water sample. The kit for quickly detecting the lead ions in the water sample, produced by the method disclosed by the invention, has the advantages that the cost is low, the observation is easy, the production is easy, the detection sensitivity is high, and the operation is simple and rapid.
Description
Technical field
The present invention relates to a kind of detection kit of water sample, more specifically relating to a kind of kit for detecting lead ion in water sample fast and using method thereof.
Background technology
Lead is a kind of metallic element, can be used as the material of sulfuric acid corrosion resistant, anti-gamma ray, accumulator etc.Its alloy can be used as font, bearing, cable sheathing etc., also can make athletic sports appliance shot.Plumbous mainly for the manufacture of lead accumulator; Lead alloy can be used for typecasting, does scolding tin; The plumbous safeguard being also used for manufacturing radioactive radiation, X ray; Plumbous and compound has larger toxicity to human body, and can at people's cylinder accumulation; Lead is used as building materials, is used in lead acetate battery, as bullet and shell, also leaded in weldering, trophy and some alloys; Lead can also make bursting shell (having another name called dumdum bullet).
Be detrimental to health with in " chief-criminal " of children's intelligence numerous now, lead is no small one of harm.The average lead tolerance in modern human body has substantially exceeded 500 multiples of ancients before 1000 according to authoritative survey report! And the mankind lack initiatively, effective safeguard procedures.According to investigations, the interior average lead tolerance of present a lot of children's body is generally higher than young man; Traffic-police is darker by lead poisoning evil compared with the people of other industry again.
After lead enters human body, except part is by except ight soil, sweat excretion, all the other dissolve in blood after a few hours, hinder the synthesis of blood, cause human body anaemia, occur headache, dizzy, weak, sleepy, constipation and limb aching pain etc.; Have metallic taste in some mouths, artery sclerosis, digestive tract ulcer are also relevant with lead contamination with symptoms such as fundus hemorrhages.Then there is hypoevolutism, poor appetite, inconvenient walking and constipation, insomnia in child's saturnism; If pupil, also not concentrate with many dynamic, dysacousis, attention, the phenomenon such as feeblemindedness.This is because lead invades cerebral nerve tissue by blood after entering human body, make nutriment and oxygen supply deficiency, cause caused by brain tissue impairment, severe patient may cause permanent disbility.Particularly children are in growth and development stage, and to lead ratio, adult is more responsive, and the lead entered in body has very strong affinity to nervous system, therefore to the uptake of lead than high several times of adult, are injured particularly serious.Lead enters in pregnant woman's body then by placental barrier, can affect development of fetus, causes deformity etc.
The method of the detection lead ion of comparative maturity has atomic absorption spectrography (AAS), inductively coupled plasma mass spectrometry, x ray fluorescence spectrometry, anodic stripping voltammetry etc. both at home and abroad at present, but these methods often exist the defects such as sample preparation steps complexity, ion interference is serious, instrument price is expensive, detection time is long.In addition, also have research to adopt fluorescence probe to detect lead ion, but when the method is really applied to practical systems, also there is many problems, such as on-the-spot promptness is poor, other ion interference, reagent are expensive, sample handling procedure is complicated.
Summary of the invention
The object of the invention is to provide a kind of economic and practical to overcome above the deficiencies in the prior art, phenomenon change obviously, can detect in water sample whether remain lead ion fast and accurately.
Technical scheme: the invention discloses a kind of kit for detecting lead ion in water sample fast, comprising following composition: screening agent, developer 1, developer 2, buffering agent, test tube, glue head dropper and standard pH test paper.
The above-described kit for detecting lead ion in water sample fast, screening agent is the mixed ethanol aqueous solution of Phen and sodium sulphate.
The above-described kit for detecting lead ion in water sample fast, in screening agent, the mass ratio of Phen, sodium sulphate and ethanol water is 1:1:100 ~ 1:1:200.
The above-described kit for detecting lead ion in water sample fast, in screening agent, the proportioning of ethanol water is the mass ratio of ethanol and water is 1:3 ~ 1:9.
The above-described kit for detecting lead ion in water sample fast, developer 1 for concentration be the chromic acid aqueous solution of 5%-20%.
The above-described kit for detecting lead ion in water sample fast, developer 2 is the concentrated sulphuric acid.
The above-described kit for detecting lead ion in water sample fast, buffering agent is 3%-5% sodium acetate aqueous solution.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample sample 2-5mL to be measured, adds 4-5 and drip screening agent in water sample, stirs and adds 1-2mL developer 1 after 5-10 minute;
Step 2, drips 3-5 with dropper to the solution described in step one and drips buffering agent, stir 3-5 minute;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid;
Step 4, if the reactant liquor described in step 2 for yellow liquid and the reactant liquor described in step 3 has Orange red solid to separate out time, containing lead ion in water sample, otherwise not containing lead ion in water sample.
Beneficial effect: the cost for the kit making detecting lead ion in water sample fast made by this method is low, and be easy to observe, make simple, phenomenon change is obvious, and detection sensitivity is high, simple and quick.
Embodiment
Embodiment 1
For detecting a kit for lead ion in water sample fast, comprise following composition: screening agent (mass ratio is Phen, sodium sulphate, 25% ethanol water of 1:1:100), 5% chromic acid aqueous solution, the concentrated sulphuric acid, 3% sodium acetate aqueous solution, test tube, glue head dropper and standard pH test paper.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample 2mL to be measured, adds 4 screening agents in water sample, stirs and adds 2mL5% chromic acid aqueous solution after 10 minutes;
Step 2, drips 5 3% sodium acetate aqueous solutions with dropper to the solution described in step one, stirs 3 minutes;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid, drips 3 altogether;
Step 4, the reactant liquor described in step 2 is for yellow liquid and the reactant liquor described in step 3 has a small amount of Orange red solid to separate out, containing a small amount of lead ion in water sample.
embodiment 2
For detecting a kit for lead ion in water sample fast, comprise following composition: screening agent (mass ratio is Phen, sodium sulphate, 10% ethanol water of 1:1:200), 20% chromic acid aqueous solution, the concentrated sulphuric acid, 5% sodium acetate aqueous solution, test tube, glue head dropper and standard pH test paper.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample 5mL to be measured, adds 5 screening agents in water sample, stirs and adds 1mL20% chromic acid aqueous solution after 5 minutes;
Step 2, drips 3 5% sodium acetate aqueous solutions with dropper to the solution described in step one, stirs 5 minutes;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid, drips 2 altogether;
Step 4, the reactant liquor described in step 2 for yellow liquid and the reactant liquor described in step 3 separate out without Orange red solid, without lead ion in water sample.
embodiment 3
For detecting a kit for lead ion in water sample fast, comprise following composition: screening agent (mass ratio is Phen, sodium sulphate, 15% ethanol water of 1:1:150), 10% chromic acid aqueous solution, the concentrated sulphuric acid, 4% sodium acetate aqueous solution, test tube, glue head dropper and standard pH test paper.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample 3mL to be measured, adds 5 screening agents in water sample, stirs and adds 1mL10% chromic acid aqueous solution after 7 minutes;
Step 2, drips 4 4% sodium acetate aqueous solutions with dropper to the solution described in step one, stirs 4 minutes;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid, drips 2 altogether;
Step 4, the reactant liquor described in step 2 for yellow liquid and the reactant liquor described in step 3 separate out without Orange red solid, without lead ion in water sample.
embodiment 4
For detecting a kit for lead ion in water sample fast, comprise following composition: screening agent (mass ratio is Phen, sodium sulphate, 18% ethanol water of 1:1:120), 15% chromic acid aqueous solution, the concentrated sulphuric acid, 4% sodium acetate aqueous solution, test tube, glue head dropper and standard pH test paper.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample 4mL to be measured, adds 3 screening agents in water sample, stirs and adds 2mL15% chromic acid aqueous solution after 10 minutes;
Step 2, drips 3 4% sodium acetate aqueous solutions with dropper to the solution described in step one, stirs 5 minutes;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid, drips 2 altogether;
Step 4, the reactant liquor described in step 2 for yellow liquid and the reactant liquor described in step 3 separate out without Orange red solid, without lead ion in water sample.
embodiment 5
For detecting a kit for lead ion in water sample fast, comprise following composition: screening agent (mass ratio is Phen, sodium sulphate, 22% ethanol water of 1:1:180), 8% chromic acid aqueous solution, the concentrated sulphuric acid, 5% sodium acetate aqueous solution, test tube, glue head dropper and standard pH test paper.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample 2mL to be measured, adds 4 screening agents in water sample, stirs and adds 1mL8% chromic acid aqueous solution after 6 minutes;
Step 2, drips 5 5% sodium acetate aqueous solutions with dropper to the solution described in step one, stirs 4 minutes;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid, drips 5 altogether;
Step 4, the reactant liquor described in step 2 is for yellow liquid and the reactant liquor described in step 3 has a large amount of Orange red solid to separate out, containing more lead ion in water sample.
embodiment 6
For detecting a kit for lead ion in water sample fast, comprise following composition: screening agent (mass ratio is Phen, sodium sulphate, 20% ethanol water of 1:1:200), 5% chromic acid aqueous solution, the concentrated sulphuric acid, 3% sodium acetate aqueous solution, test tube, glue head dropper and standard pH test paper.
The using method of the above-described kit for detecting lead ion in water sample fast, comprises the steps:
Step one, gets water sample 5mL to be measured, adds 5 screening agents in water sample, stirs and adds 2mL5% chromic acid aqueous solution after 10 minutes;
Step 2, drips 5 2% sodium acetate aqueous solutions with dropper to the solution described in step one, stirs 3 minutes;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid, drips 1 altogether;
Step 4, the reactant liquor described in step 2 for yellow liquid and the reactant liquor described in step 3 separate out without Orange red solid, without lead ion in water sample.
The detection kit that the water sample of the 6 kinds of different regions detected for above embodiment 1-6 is sold by market carries out Comparative result detection, the results are shown in Table 1:
The testing result of table 1 embodiment 1-6 compares with existing detection kit
Note: the plumbous detection kit that detection kit is Hangzhou Chuan He environmental protection equipment company limited is sold in market described in table 1
As known from Table 1, kit Detection results for detecting lead ion in water sample fast used in the present invention is identical with detection kit effect commercially available, and test result of the present invention only need by precipitate in visual inspection solution generation number can know residual quantity number, be easy to observe.Have cost low, make simple, detection sensitivity is high, simple and quick advantage simultaneously.
Claims (8)
1. for detecting a kit for lead ion in water sample fast, it is characterized in that, comprising following composition: screening agent, developer 1, developer 2, buffering agent, test tube, glue head dropper and standard pH test paper.
2. the kit for detecting lead ion in water sample fast according to claim 1, is characterized in that, screening agent is the mixed ethanol aqueous solution of Phen and sodium sulphate.
3. the kit for detecting lead ion in water sample fast according to claim 1, is characterized in that, in screening agent, the mass ratio of Phen, sodium sulphate and ethanol water is 1:1:100 ~ 1:1:200.
4. the kit for detecting lead ion in water sample fast according to claim 1, is characterized in that, in screening agent, the proportioning of ethanol water is the mass ratio of ethanol and water is 1:3 ~ 1:9.
5. the kit for detecting lead ion in water sample fast according to claim 1, is characterized in that, developer 1 for concentration be the chromic acid aqueous solution of 5%-20%.
6. the kit for detecting lead ion in water sample fast according to claim 1, is characterized in that, developer 2 is the concentrated sulphuric acid.
7. the kit for detecting lead ion in water sample fast according to claim 1, is characterized in that, buffering agent is 3%-5% sodium acetate aqueous solution.
8. a using method for the kit for detecting lead ion in water sample fast described in any one of claim 1-7, comprises the steps:
Step one, gets water sample sample 2-5mL to be measured, adds 4-5 and drip screening agent in water sample, stirs and adds 1-2mL developer 1 after 5-10 minute;
Step 2, drips 3-5 with dropper to the solution described in step one and drips buffering agent, stir 3-5 minute;
Step 3, drips the concentrated sulphuric acid to the reactant liquor described in step 2, surveys pH with standard pH test paper, to stopping during pH=1 dripping the concentrated sulphuric acid;
Step 4, if the reactant liquor described in step 2 for yellow liquid and the reactant liquor described in step 3 has Orange red solid to separate out time, containing lead ion in water sample, otherwise not containing lead ion in water sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679482.8A CN104406962A (en) | 2014-11-24 | 2014-11-24 | Kit for quickly detecting lead ion in water sample and use method of kit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410679482.8A CN104406962A (en) | 2014-11-24 | 2014-11-24 | Kit for quickly detecting lead ion in water sample and use method of kit |
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| CN104406962A true CN104406962A (en) | 2015-03-11 |
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| CN201410679482.8A Pending CN104406962A (en) | 2014-11-24 | 2014-11-24 | Kit for quickly detecting lead ion in water sample and use method of kit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792781A (en) * | 2015-04-30 | 2015-07-22 | 张舒捷 | Detection test strip for Barium ion in drinking water and water source and detection method thereof |
| CN104931492A (en) * | 2015-06-10 | 2015-09-23 | 苏州东辰林达检测技术有限公司 | Detection reagent for lead content in seaweed and detection method using detection reagent |
| CN111208126A (en) * | 2020-02-04 | 2020-05-29 | 桂林理工大学 | Method for detecting lead in wall panel |
Citations (4)
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| SU541111A1 (en) * | 1974-12-10 | 1976-12-30 | Дальневосточный Проектный И Научно-Исследовательский Институт Промышленного Строительства | Method for quantitative determination of fatty, naphthenic and sulfonaphthenic acids contained in wastewater |
| UA62175A (en) * | 2003-01-08 | 2003-12-15 | Ukrainian Res Inst Of Ind Medi | Method for determining the content of lead in the cells of the organs of an experimental animal |
| CN102288600A (en) * | 2011-05-13 | 2011-12-21 | 重庆大学 | Colorimetric measuring method for simultaneously measuring hexavalent chromium and lead |
| CN202649109U (en) * | 2012-07-10 | 2013-01-02 | 苏州科特环保设备有限公司 | Lead ion online automatic monitoring device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU541111A1 (en) * | 1974-12-10 | 1976-12-30 | Дальневосточный Проектный И Научно-Исследовательский Институт Промышленного Строительства | Method for quantitative determination of fatty, naphthenic and sulfonaphthenic acids contained in wastewater |
| UA62175A (en) * | 2003-01-08 | 2003-12-15 | Ukrainian Res Inst Of Ind Medi | Method for determining the content of lead in the cells of the organs of an experimental animal |
| CN102288600A (en) * | 2011-05-13 | 2011-12-21 | 重庆大学 | Colorimetric measuring method for simultaneously measuring hexavalent chromium and lead |
| CN202649109U (en) * | 2012-07-10 | 2013-01-02 | 苏州科特环保设备有限公司 | Lead ion online automatic monitoring device |
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| 阮鸿兴: "几个常见元素的简易鉴定方法", 《云南冶金》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792781A (en) * | 2015-04-30 | 2015-07-22 | 张舒捷 | Detection test strip for Barium ion in drinking water and water source and detection method thereof |
| CN104792781B (en) * | 2015-04-30 | 2015-11-18 | 张舒捷 | Barium ion test strip and detection method in a kind of potable water and water source |
| CN104931492A (en) * | 2015-06-10 | 2015-09-23 | 苏州东辰林达检测技术有限公司 | Detection reagent for lead content in seaweed and detection method using detection reagent |
| CN111208126A (en) * | 2020-02-04 | 2020-05-29 | 桂林理工大学 | Method for detecting lead in wall panel |
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Application publication date: 20150311 |
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