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A rapid on-site detection method for aluminum ions in water that can eliminate the influence of reagent blanks

A detection method, the technology of aluminum ions, which is applied in the direction of chemical reaction of materials for analysis, chemiluminescence/bioluminescence, etc., can solve the problems that the dissolution time is difficult to effectively control, and the reagent blank cannot be eliminated.

Active Publication Date: 2018-04-24
WENZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a rapid on-site detection method for aluminum ions in water that can eliminate the influence of reagent blanks, so as to realize rapid and accurate on-site detection of aluminum ions in water, and overcome the problem of dissolution due to the use of dry powder detection reagents in the prior art. Due to the difference in time, it is difficult to effectively control the detection time. Because the standard color card that does not deduct the reagent blank is used, the standard color card is directly compared with the sample tube to obtain the result during color comparison, and the fluctuation of the reagent blank cannot be eliminated. The impact on the accuracy of the test results Disadvantages of Adverse Effects

Method used

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  • A rapid on-site detection method for aluminum ions in water that can eliminate the influence of reagent blanks
  • A rapid on-site detection method for aluminum ions in water that can eliminate the influence of reagent blanks

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Step 1. Weigh 0.5g Chromazurol S, 1g Cetylpyridinium Chloride, 5g Sodium Chloride, add 800ml 80mmol / L pH5.0 acetic acid-sodium acetate buffer solution and stir to dissolve, then add 10ml ethylene glycol, stir to dissolve Then use 80mmol / L pH5.0 acetic acid-sodium acetate buffer to make the volume to 1000ml, and get 1000ml containing 0.5g / L Chromazurol S, 1g / L chlorohexadecylpyridine, 5g / L sodium chloride, 10ml / L ethylene glycol 80mmol / LpH 5.0 acetic acid-sodium acetate buffer is a liquid aluminum ion detection reagent;

[0040] Step 2. Take 7 10ml glass colorimetric tubes, set the first colorimetric tube as a blank tube, and the 2-7th colorimetric tubes as standard tubes. Add 10ml deionized water and 10ml to the blank tube and the standard tube respectively The aluminum ion standard solution with the concentration of 0.02mg / L, 0.06mg / L, 0.10mg / L, 0.16mg / L, 0.20mg / L, 0.30mg / L, then add the liquid aluminum ion detection reagent described in step one 0.2ml, react for 15 min...

Embodiment 2

[0046] Step 1. Weigh 0.75g chromazurol S, 2g cetylpyridinium chloride, 25g sodium chloride, add 800ml 80mmol / L pH5.0 acetic acid-sodium acetate buffer and stir to dissolve, then add 25ml ethylene glycol, stir to dissolve Then use 80mmol / L pH5.0 acetic acid-sodium acetate buffer to make the volume to 1000ml, and get 1000ml containing 0.75g / L chromazurol S, 2g / L chloro cetylpyridine, 25g / L sodium chloride, 20ml / L ethylene glycol 80mmol / L pH 5.0 acetic acid-sodium acetate buffer is a liquid aluminum ion detection reagent;

[0047] Step 2. Take 7 10ml glass colorimetric tubes, set the first colorimetric tube as a blank tube, and the 2-7th colorimetric tubes as standard tubes. Add 10ml deionized water and 10ml to the blank tube and the standard tube respectively The aluminum ion standard solution with the concentration of 0.02mg / L, 0.06mg / L, 0.10mg / L, 0.16mg / L, 0.20mg / L, 0.30mg / L, then add the liquid aluminum ion detection reagent described in step one 0.2ml, react for 10 minutes at...

Embodiment 3

[0053] Step 1. Weigh 1.0g Chromazurol S, 3g Cetylpyridinium Chloride, 50g Sodium Chloride, add 800ml 80mmol / L pH5.0 acetic acid-sodium acetate buffer and stir to dissolve, then add 30ml ethylene glycol, stir to dissolve Then use 80mmol / L pH5.0 acetic acid-sodium acetate buffer to make the volume to 1000ml, and get 1000ml containing 1.0g / L Chromazurol S, 3g / L chlorohexadecylpyridine, 50g / L sodium chloride, 30ml / L ethylene glycol 80mmol / L pH 5.0 acetic acid-sodium acetate buffer is a liquid aluminum ion detection reagent;

[0054] Step 2. Take 7 10ml glass colorimetric tubes, set the first colorimetric tube as a blank tube, and the 2-7th colorimetric tubes as standard tubes. Add 10ml deionized water and 10ml to the blank tube and the standard tube respectively The aluminum ion standard solution with the concentration of 0.02mg / L, 0.06mg / L, 0.10mg / L, 0.16mg / L, 0.20mg / L, 0.30mg / L, then add the liquid aluminum ion detection reagent described in step one 0.2ml, react for 5 minutes at...

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Abstract

The invention discloses an on-site rapid detection method for aluminum ions in water that can eliminate the influence of reagent blanks. The method is prepared by preparing a liquid-type aluminum ion detection reagent, deducting the blank color of the reagent, and using a transparent plastic plate as a supporting material for a standard color card. Superimpose the color of the blank tube on the standard color card and compare it with the sample tube when making and testing, which has the advantages of simple method, high accuracy and easy operation; using liquid aluminum ion detection reagent for detection can effectively control the entire detection process Time required; by superimposing the color of the blank tube on the standard color card and then performing color comparison with the sample tube, it can effectively eliminate the adverse effect of the fluctuation of the reagent blank on the accuracy of the test result, especially suitable for the aluminum ion in water field Quick check.

Description

Technical field [0001] The invention belongs to the field of water quality detection, and particularly relates to an on-site rapid detection method for aluminum ions in water that can eliminate the influence of reagent blanks. Background technique [0002] The sanitary standard for drinking water stipulates that the maximum allowable content of aluminum is 0.20mg / L. Excessive intake of aluminum will cause various hazards to human health: damage the human brain, heart, liver function and immune function, and induce Alzheimer's disease; after aluminum is absorbed by the digestive system, it is toxic to the activity of osteoblasts and inhibits The synthesis of bone matrix leads to the increase of urinary calcium excretion and the lack of calcium in the human body; the combination of aluminum and transferrin causes interference in the distribution and metabolism of iron in the plasma, resulting in non-iron deficiency anemia. In addition, excessive intake of aluminum can also cause v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/76
Inventor 连国军
Owner WENZHOU MEDICAL UNIV