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Analysis method for determining nano silver luminosity of ozone

A nano-silver and ozone technology, which is applied in the field of analytical chemistry, can solve the problems such as nano-silver spectrometry which has not yet been seen, and achieve the effects of simple operation, good selectivity and simple instrument.

Inactive Publication Date: 2013-10-09
GUANGXI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As far as we know, no nanosilver spectrophotometric method has been used to detect O 3 report

Method used

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  • Analysis method for determining nano silver luminosity of ozone

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Experimental program
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Embodiment

[0021] The method for applying photometric method to measure ozone may further comprise the steps:

[0022] (1) Preparation of ozone standard solution system: Take 7 graduated test tubes, pipette 5 μL, 50 μL, 100 μL, 500 μL, 1000 μL, 1500 μL, 2000 μL 1.85×10 -4 mol / L nano-silver, dilute to 2.0 mL with twice distilled water, and mix well;

[0023] (2) Prepare the blank control solution system: take twice distilled water as the blank control solution;

[0024] (3) Take an appropriate amount of the ozone standard solution system and the blank control solution system prepared according to steps (1) and (2), respectively, put them in a cuvette, and scan the wavelength of 300nm to 600nm on the TU-1901 spectrophotometer to obtain Spectrogram of the system, measure the absorbance value of the ozone standard solution system at the maximum absorption wavelength of 400 nm A , and measure the absorbance value of the blank control solution system A 0 , calculate Δ A = A - A 0 ; ...

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Abstract

The invention discloses an analysis method for determining nano silver luminosity of ozone. The method comprises the following steps of: (1) preparing an ozone standard solution system; (2) preparing a blank control solution system; (3) respectively determining an absorbance value A of the ozone standard solution system at wavelength of 400nm, and an absorbance value A0 of the blank control solution system, so as to calculate delta A=A-A0; (4) drawing a work curve by using the concentration relationship of the delta A on the ozone; (5) determining the measured sample, calculating the delta A(sample)=A0'-A(sample) of the measured object; and (6) checking the work curve in the step (4) according to the measured delta A(sample) of the sample, and calculating out the concentration of the ozone in the measured object. The determination method is cheap in instrument, rapid in operation, high in sensitivity, and good in selectivity.

Description

technical field [0001] The invention relates to the field of analytical chemistry, in particular to a nano silver photometric analysis method for measuring ozone. Background technique [0002] Ozone (O 3 ) is a trace gas in the earth's atmosphere. Under strong sunlight conditions, nitrogen oxides and volatile organic compounds in the air will undergo photochemical reactions to form O 3 , which is an indicator of photochemical smog pollution. For humans, O 3 It is a "double-edged sword". o 3 Has a bactericidal effect, but when O 3 When it reaches a certain concentration in the atmosphere, it will cause environmental pollution. Excessively high respiratory concentration or high respiratory concentration of O 3 May irritate eyes and airways, cause decreased lung function, aggravate asthma, inflame and damage the interior of the lungs; prolonged exposure to O 3 May induce long-term injury including permanent lung damage. [0003] Currently, O 3 Determination methods in...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N1/38
Inventor 梁爱惠刘高伞蒋治良
Owner GUANGXI NORMAL UNIV