Measuring method for content of aluminium in water by utilizing ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry)

An ICP-AES, aluminum content technology, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve the problems of complex solution and low measurement accuracy

Active Publication Date: 2013-10-09
四川国测检测技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are more complicated to prepar

Method used

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Embodiment 1

[0014] Step (1): Weigh 200ml of the water sample to be tested in a beaker, 3g of sodium hydroxide and 2g of potassium hydroxide, keep it at 85 degrees Celsius for 2 minutes, then heat it again to 100 degrees Celsius and keep it for 2 minutes; use hydrochloric acid (1+ 1) Neutralize until turbidity appears, stir, then add 10ml of hydrochloric acid with concentration (1+1), after cooling, transfer to a 1L volumetric flask, dilute with water to the mark, shake well and set aside;

[0015] Step (2) Aluminum standard solution: Accurately weigh 1.0g into a 200ml beaker, add 50ml of water, 3g of sodium hydroxide and 2g of potassium hydroxide, within the temperature range of 85-100 degrees Celsius: keep at a certain temperature for 2 minutes, then Heat again to another temperature and keep for 2 minutes; neutralize with hydrochloric acid until turbidity appears, stir, then add 10ml of hydrochloric acid with a concentration of (1+1), after cooling, transfer to a 1L volumetric flask, dil...

Embodiment 2

[0029] Step (1): Weigh 200ml of the water sample to be tested in a beaker, 3g of sodium hydroxide and 2g of potassium hydroxide, keep it at 85 degrees Celsius for 3 minutes, then heat it again to 100 degrees Celsius and keep it for 3 minutes; neutralize it with hydrochloric acid until When turbidity appears, stir, then add 10ml of hydrochloric acid with a concentration of (1+1), after cooling, transfer to a 1L volumetric flask, dilute with water to the mark, shake well and set aside;

[0030] Step (2) Aluminum standard solution: Accurately weigh 1.0g into a 200ml beaker, add 50ml of water, 3g of sodium hydroxide and 2g of potassium hydroxide, within the temperature range of 85-100 degrees Celsius: keep at a certain temperature for 2 minutes, then Heat again to another temperature and keep for 2 minutes; neutralize with hydrochloric acid until turbidity appears, stir, then add 10ml of hydrochloric acid with a concentration of (1+1), after cooling, transfer to a 1L volumetric fla...

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PUM

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Abstract

The invention discloses a measuring method for the content of metal aluminium in water. The method can be used for measuring the content of the metal aluminium in the water by adopting an ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry) method. The measuring method comprises the following steps of: firstly dissolving an aqueous-solution sample containing the aluminium, and carrying out secondary heating for digestion by adding a certain amount of sodium hydroxide and potassium hydroxide solution and hydrochloric acid solution to so as to effectively dissolve the metal aluminium; then measuring the content of the aluminium by adopting an ICP-AES spectrometer. By adoption of the method for detection, the matrix interference is small, and the need for production can be met.

Description

technical field [0001] The invention relates to the field of element analysis, in particular to measuring aluminum metal elements by using ICP-AES inductively coupled plasma atomic emission spectrometry. Background technique [0002] Aluminum is an important metal element, which is abundant in nature and widely distributed in the earth's crust, with a content as high as 8.8% (by weight), ranking third after oxygen and silicon. The main form of existence is bisilicate and weathering products. The main minerals are cryolite, bauxite and kaolin. The content of active dissolved aluminum is very limited, generally it will not cause damage to the root system of plants, and it is rarely used by the human body. Gastrointestinal absorption. Excessive intake can cause various diseases. Aluminum salts are also widely used in the treatment of drinking water. Therefore, drinking water has become one of the important sources of aluminum in the human body. It is of great significance to ...

Claims

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Application Information

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IPC IPC(8): G01N21/71
Inventor 傅酉付玉生
Owner 四川国测检测技术有限公司
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