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Ion meter based determination method for determining cyanide content of wastewater

A determination method and technology of ion meter, which can be used in measurement devices, material electrochemical variables, instruments, etc., can solve problems such as unfavorable production control and long detection time.

Pending Publication Date: 2021-09-14
宁夏坤正生物科技有限公司
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Problems solved by technology

[0002] In the determination of cyanide content in cyanide in wastewater, silver nitrate titration method is mainly used. The sample pretreatment of this method adopts distillation method, which takes a long time for detection and is not conducive to production control.

Method used

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Embodiment Construction

[0013] This specific embodiment adopts the following technical solutions: a method for determining the content of cyanide in wastewater with an ion meter, including the following equipment: ion meter, cyanide ion electrode, temperature compensation electrode, magnetic stirrer, 100ml beaker, 1000ml volumetric flask, 100ml Volumetric flask, 50ml volumetric flask, ion enhancer made of saturated sodium hydroxide solution, sodium cyanide standard calibration solution with a calibration degree of 0.1ppm, 1ppm, and 10ppm.

[0014] Concrete, the preparation of sodium cyanide standard calibration solution: Accurately weigh 0.1884g of sodium cyanide (analytical pure) in the 1000ml volumetric flask, add purified water and dilute to the scale, the acquired concentration is 1000mg / L sodium cyanide standard stock solution, Then dilute this standard stock solution to 100, 10, 1, 0.1 mg / L in turn; sample treatment: properly dilute the sample according to the predicted concentration, add ion en...

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Abstract

The invention discloses an ion meter based determination method for determining the cyanide content of wastewater. Equipment used in the method includes an ion meter, a cyanide ion electrode, a temperature compensation electrode, a magnetic stirrer, a 100ml beaker, a 1000ml volumetric flask, a 100ml volumetric flask, a 50ml volumetric flask, an ion enhancer made of a sodium hydroxide saturated solution, and sodium cyanide standard calibration solutions with calibration degrees of 0.1 ppm, 1ppm and 10ppm. Compared with a silver nitrate titration method, the method disclosed by the invention has the beneficial effects of accurate detection method, rapidness, suitability for online monitoring, capability of providing effective data for production control in time and capability of greatly improving the production efficiency.

Description

Technical field: [0001] The invention belongs to the technical field of cyanide content detection, in particular to an ion meter determination method for cyanide content determination in wastewater. Background technique: [0002] In the determination of cyanide content in wastewater, the silver nitrate titration method is mainly used. The sample pretreatment of this method adopts the distillation method, and the detection takes a long time, which is not conducive to production control. Invention content: [0003] The purpose of the present invention is just to provide a kind of ion meter measuring method for cyanide content determination in waste water in order to solve the above problems. [0004] In order to solve the above problems, the present invention provides a technical solution: [0005] A kind of ion meter measuring method for cyanide content determination in waste water, comprises following equipment: ion meter, cyanide ion electrode, temperature compensating e...

Claims

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Application Information

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IPC IPC(8): G01N27/26G01N27/333
CPCG01N27/26G01N27/333
Inventor 郭政马金保刘国朋
Owner 宁夏坤正生物科技有限公司
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