Stibium, barium, arsenic, zinc, strontium, zirconium rapid measuring method for TFT substrate glass

A glass and substrate technology, which is applied in the rapid determination of arsenic, zinc, TFT substrate glass antimony, barium, zirconium, and strontium. It can solve the problems of difficult analysis and achieve the effect of simple operation, low detection limit and high accuracy.

Inactive Publication Date: 2009-01-14
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many types of elements in the glass component of the TFT substrate, and the elements interfere with each other in the analysis and test, making the analysis more difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0060] The samples were ground to pass a 0.08 mm sieve and stored in a jar with a grindstone sieve. Weigh about 0.10 grams to the nearest 0.0001 grams. Dry the sample at 100~108℃ for not less than 1 hour in a constant temperature drying oven, place it in a platinum dish, wet it with water, add 0.5ml perchloric acid and 8ml hydrofluoric acid, evaporate on a low temperature electric furnace to white Smoke out. Cool, add 2.5ml hydrochloric acid and appropriate amount of water, heat to dissolve. After cooling, transfer to a 250ml volumetric flask, dilute to the mark with water, and shake well for use.

[0061] Add 0.5ml of perchloric acid and 8ml of hydrofluoric acid to the platinum dish, and evaporate on a low-temperature electric furnace until the white smoke is exhausted. Cool, add 2.5ml hydrochloric acid and appropriate amount of water, heat to dissolve. After cooling, transfer to a 250ml volumetric flask, dilute to the mark with water, shake well, this is the blank soluti...

Embodiment approach 2

[0064] The samples were ground to pass a 0.08 mm sieve and stored in a jar with a grindstone sieve. Weigh about 0.12 grams to the nearest 0.0001 grams. Dry the sample at 100-108°C for no less than 1 hour in a constant temperature drying oven, place it in a platinum dish, wet it with water, add 1.5ml perchloric acid and 15ml hydrofluoric acid, evaporate on a low-temperature electric furnace to white Smoke out. Cool, add 6ml of hydrochloric acid and an appropriate amount of water, and heat to dissolve. After cooling, transfer to a 250ml volumetric flask, dilute to the mark with water, shake well, and set aside.

[0065] Blank test solution: add 1.5ml of perchloric acid and 15ml of hydrofluoric acid to the platinum dish, and evaporate on a low-temperature electric furnace until the white smoke is exhausted. Cool, add 6ml of hydrochloric acid and an appropriate amount of water, and heat to dissolve. After cooling, transfer to a 250ml volumetric flask, dilute to the mark with w...

Embodiment approach 3

[0068] The samples were ground to pass a 0.08 mm sieve and stored in a jar with a grindstone sieve. Weigh about 0.20 grams to the nearest 0.0001 grams. Dry the sample at 100~108℃ for not less than 1 hour in a constant temperature drying oven, place it in a platinum dish, wet it with water, add 1.0ml perchloric acid and 20ml hydrofluoric acid, evaporate on a low temperature electric furnace to white Smoke out. Cool, add 12.5ml of hydrochloric acid and an appropriate amount of water, and heat to dissolve. After cooling, transfer to a 250ml volumetric flask, dilute to the mark with water, shake well, and set aside.

[0069] Blank test solution: add 1.0ml of perchloric acid and 20ml of hydrofluoric acid to a platinum dish, and evaporate on a low-temperature electric furnace until the white smoke is exhausted. Cool, add 12.5ml of hydrochloric acid and an appropriate amount of water, and heat to dissolve. After cooling, transfer to a 250ml volumetric flask, dilute to the mark wi...

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PUM

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Abstract

The invention discloses a method that is used for quickly measuring the content of stibium, barium, arsenic, zinc, strontium and zirconium in a TFT substrate glass, realizes measurement on the basis of the inductively coupled plasma atomic emission spectrometry, comprises the steps of experimental condition preparation, sample processing, working curve plotting, interfering and eliminating, and building of the linear relation condition, the detection limit condition and the accuracy condition of the method, wherein, the experimental condition preparation comprises instrument selection, acidity selection and analyzing spectral line selection; the sample processing comprises test sample processing, blank test fluid processing and the measurement, the working curve plotting comprises configuration of a solution in the standard series and the plotting of the working curve; the interfering and eliminating comprises chemical, physical and spectral interfering, background removing and building of the related coefficient between each measured element and the linear relation between the working curves; the blank sample is continuously measured for 10 times, the detection limit of the method is obtained according to a formula, the sample of the same TFT substrate glass is repeatedly measured for 10 times, the precision experiment is implemented, and finally the labeled recovery experiment of the sample is implemented.

Description

technical field [0001] The invention belongs to the technical field of metal testing and analysis, and particularly relates to a rapid determination method for antimony, barium, arsenic, zinc, strontium and zirconium in glass of a TFT substrate. Background technique [0002] TFT substrate glass is a commercial substrate glass used in thin film transistor liquid crystal displays, namely TFT-LCD. With the rapid development of the electronics industry and digital electronics, the demand for TFT substrates is increasing. At present, my country has become an important production base for TFT display products, but so far, there is no TFT substrate glass production enterprise in China. [0003] TFT substrate glass is a new variety completely different from the general soda-lime-silicon float glass. It contains the top technology in the glass industry. TFT substrate glass is made by adding different elements such as Zr, Sr, Ba, etc. To adjust some physical and chemical properties o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/66G01N1/28
Inventor 杜米芳
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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