CN2149625Y - Arsenic analysing apparatus using silver salt method - Google Patents
Arsenic analysing apparatus using silver salt method Download PDFInfo
- Publication number
- CN2149625Y CN2149625Y CN 92220992 CN92220992U CN2149625Y CN 2149625 Y CN2149625 Y CN 2149625Y CN 92220992 CN92220992 CN 92220992 CN 92220992 U CN92220992 U CN 92220992U CN 2149625 Y CN2149625 Y CN 2149625Y
- Authority
- CN
- China
- Prior art keywords
- arsenic
- tube
- silver salt
- utility
- model
- 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
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to a device for testing the arsenic content in water, comprising a reaction pipe, a drying pipe, a sphere conduit and an absorbing pipe which are in series connection via a conduit. The utility model can produce small and multiple chlorine bubbles in the reaction process and can increase the mass transfer absorbing area, and therefore, the utility model increase the absorbance and the sensitivity.
Description
The utility model relates to a kind of water-quality test instrument, especially can test water in the proving installation of arsenic content.
At present, a kind of new silver salt spectrophotometric proving installation is arranged, it is by reaction tube, U-shaped pipe and open type absorption tube constitute by the conduit series connection, it is to produce hydrogen in statu nascendi with potassium borohydride (or sodium borohydride) in acid solution, inorganic arsenic in the water is reduced into arsine gas, again with nitric acid, silver nitrate, polyvinyl alcohol (PVA) and alcohol mixeding liquid are absorption liquid, arsenic hydride becomes the simple substance collargol with the silver ion reduction in the absorption liquid, make solution be yellow, color intensity is directly proportional with the amount that generates hydride, when yellow solution is a maximal value during at the 400nm place, and the peak shape symmetry, color did not have significant change in 2 hours, its chemical reaction is as follows:
Owing to adopting the open type absorption tube, make the absorption mass transfer area little, the bubble that above-mentioned reaction is produced lacks greatly, causes absorptivity low low with absorbance.
The purpose of this utility model provides a kind of new silver salt method and surveys the arsenic device.
The purpose of this utility model is achieved in that by reaction tube, drying tube, spherical catheter and absorption tube and constitutes by the conduit series connection that the top of absorption tube is spherical in shape, in the bottom of absorption tube a porous plate is installed.
Owing to adopt such scheme, porous plate can make the reaction bubble little and many, has increased the mass transfer area that its gas phase absorbs to Liquid Phase Diffusion, thereby has improved absorbance and sensitivity, can be widely used in to potable water the mensuration of the arsenic content in process water and the waste water.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural map of the present utility model.
Among the figure 1, reaction tube 2, drying tube 3, spherical catheter 4, absorption tube 5, three-way pipe 6, conduit 7, porous plate
In the embodiment shown in fig. 1, its device is made of by conduit (6) series connection reaction tube (1), drying tube (2), spherical catheter (3) and top absorption tube (4) spherical in shape, a porous plate (7) is installed in the bottom of absorption tube (4), and the installation three-way pipe (5) in reaction tube (1) also joins with conduit (6).Its using method is: at first with treated cleaning water sample 250ml(as containing arsenic concentration when higher, the clean water that can take a morsel sample is diluted with water to 250ml) place 250ml reaction tube (1), add sulfuric acid and tartrate mixed liquor 20ml thereupon, in drying tube (2), add simultaneously by silver nitrate, the mixed liquor (its proportioning is respectively 1:1:2) that polyvinyl alcohol (PVA) and ethanol are formed, in reaction tube (1), put into potassium borohydride (or sodium borohydride) a slice thereupon, react after five minutes, put into a slice potassium borohydride (or sodium borohydride) again, continue reaction five minutes, at last absorption liquid is carried out absorbance measurement, its computing formula is as follows:
Arsenic (As.mg/l)=(m)/(v)
In the formula: the As content (mg) of m for checking in by calibration curve,
V is detected water sample volume ml.
Its reaction principle is identical with new silver salt spectrophotometric method of testing.
Claims (1)
1, a kind of new silver salt method is surveyed the arsenic device, by reaction tube (1), drying tube (2), spherical catheter (3) and absorption tube (4) constitute by conduit (6) series connection, and it is characterized in that: the top of absorption tube (4) is spherical in shape, in the bottom of absorption tube (4) porous plate (7) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220992 CN2149625Y (en) | 1992-09-21 | 1992-09-21 | Arsenic analysing apparatus using silver salt method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220992 CN2149625Y (en) | 1992-09-21 | 1992-09-21 | Arsenic analysing apparatus using silver salt method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2149625Y true CN2149625Y (en) | 1993-12-15 |
Family
ID=33767897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92220992 Expired - Fee Related CN2149625Y (en) | 1992-09-21 | 1992-09-21 | Arsenic analysing apparatus using silver salt method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2149625Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419407C (en) * | 2005-04-12 | 2008-09-17 | 中国海洋大学 | Method for detecting trivalence arsenic in water body rapidly |
| CN107436289A (en) * | 2017-07-27 | 2017-12-05 | 成都蜀星饲料有限公司 | A kind of method for detecting arsenic in feed addictive sodium selenite |
-
1992
- 1992-09-21 CN CN 92220992 patent/CN2149625Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419407C (en) * | 2005-04-12 | 2008-09-17 | 中国海洋大学 | Method for detecting trivalence arsenic in water body rapidly |
| CN107436289A (en) * | 2017-07-27 | 2017-12-05 | 成都蜀星饲料有限公司 | A kind of method for detecting arsenic in feed addictive sodium selenite |
| CN107436289B (en) * | 2017-07-27 | 2019-09-03 | 成都蜀星饲料有限公司 | A method of arsenic in detection feed addictive sodium selenite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Johansson et al. | An enzyme reactor electrode for urea determinations | |
| CN106841334B (en) | Detection system and method capable of monitoring various heavy metal ions on line in real time | |
| CN201392315Y (en) | Automatic on-line monitoring device for ammonia nitrogen | |
| Dasgupta et al. | Application of a nested loop system for the flow injection analysis of trace aqueous peroxides | |
| Rusling et al. | Immobilized enzyme-based flowing-stream analyzer for measurement of penicillin in fermentation broths | |
| Xie et al. | Flow-injection determination of ethanol by fiber-optic chemiluminescence measurement | |
| BAg et al. | Determination of Fe (II) and Fe (III) in water by flame atomic absorption spectrophotometry after their separation with Aspergillus niger immobilized on sepiolite | |
| Jianzhong et al. | A flow-injection type chemiluminescence-based sensor for cyanide | |
| Papaefstathiou et al. | Integrated pervaporation/detection: continuous and discontinuous approaches for treatment/determination of fluoride in liquid and solid samples | |
| Fraticelli et al. | Selectivity characteristics of ammonia-gas sensors based on a polymer membrane electrode | |
| CN2149625Y (en) | Arsenic analysing apparatus using silver salt method | |
| Hermanto et al. | Optical fiber mercury biosensor based on immobilized urease and bromothymol blue onto the alginate-chitosan membrane in the flow-system | |
| Bond et al. | A simple pretreatment of unrine for the direct differential-pulse anodic stripping voltammetric determination of lead | |
| CN112986163A (en) | Chloride ion concentration detection method based on spectral analysis | |
| CN106706611B (en) | Method for immobilizing indicator by using porous silica gel material, gas sensor and application | |
| US5371018A (en) | Qualitative and quantitative processes for reactive chemicals in liquids using doped sol-gel glasses | |
| Yarnitzky | Automated cell: a new approach to polarographic analyzers | |
| CN210953907U (en) | Sewage treatment plant toxicity of intaking on-line measuring device | |
| CN211955307U (en) | Continuous monitor for nitrate nitrogen in water | |
| CN214794438U (en) | Detection apparatus for low content heavy metal in to sewage | |
| CN105738640A (en) | Preservation method and automatic analysis method of trace divalent sulfide ions in water sample | |
| Safavi et al. | Length of stain detector for high alkalinity measurement | |
| Diamandis et al. | Kinetic potentiometric determination of creatinine in serum with a picrate ion-selective membrane electrode. | |
| Seki et al. | Determination of ascorbic acid in human urine by high-performance liquid chromatography coupled with fluorimetry after post-column derivatization with benzamidine | |
| CN211927884U (en) | Water quality biotoxicity on-line monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |