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A method for detecting bf in water 4 - 、h 2 po 4 - and hso 4 - Methods

A technology for H2PO4- and water detection, applied in measurement devices, fluorescence/phosphorescence, material excitation analysis, etc.

Active Publication Date: 2021-05-14
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently there are few fluorescent probes for the detection of anions in aqueous solution, and most of them are for the detection of metal ions, while at the same time they can detect BF in water. 4 - 、H 2 PO 4 - and HSO 4 - Fluorescent probes for detection have not been reported

Method used

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  • A method for detecting bf in water <sub>4</sub> <sup>-</sup> 、h <sub>2</sub> po <sub>4</sub> <sup>-</sup> and hso <sub>4</sub> <sup>-</sup> Methods
  • A method for detecting bf in water <sub>4</sub> <sup>-</sup> 、h <sub>2</sub> po <sub>4</sub> <sup>-</sup> and hso <sub>4</sub> <sup>-</sup> Methods
  • A method for detecting bf in water <sub>4</sub> <sup>-</sup> 、h <sub>2</sub> po <sub>4</sub> <sup>-</sup> and hso <sub>4</sub> <sup>-</sup> Methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: A kind of detection water BF 4 - 、H 2 PO 4 - and HSO 4 - method, the steps are as follows:

[0039] 1) Dissolve monomethyl six-membered cucurbit ring in secondary water at pH=7 to prepare solution A, then dissolve trans-4-4(dimethylamino)styryl-1-picoline iodine in pH=7 Secondary water to prepare the B solution, and finally the A solution and the B solution are in the molar ratio of monomethyl six-membered cucurbit ring and trans-4-4 (dimethylamino) styryl-1-picoline iodine in a molar ratio of 1:1 After mixing, mix at room temperature to obtain a supramolecular complex based on a monomethyl six-membered cucurbit ring;

[0040] 2) The supramolecular complex based on the monomethyl six-membered cucurbit ring was dissolved in water to prepare a concentration of 2.0*10 -5 mol / L standard solution;

[0041] 3) Measure the fluorescence spectrum of the standard solution with a fixed excitation wavelength of 458nm, and draw the fluorescence intensity curve...

Embodiment 2

[0044] Embodiment 2: A kind of detection water BF 4 - 、H 2 PO 4 - and HSO 4 - method, the steps are as follows:

[0045] 1) Dissolve the monomethyl six-membered melon ring and trans-4-4 (dimethylamino) styryl-1-picoline iodine in a molar ratio of 1:1 in secondary water with pH=7, at room temperature Reaction, make supramolecular complexes based on monomethyl six-membered cucurbit ring;

[0046] 2) The supramolecular complex based on the monomethyl six-membered cucurbit ring was dissolved in water to prepare a concentration of 2.0*10 -5 mol / L standard solution;

[0047] 3) Measure the fluorescence spectrum of the standard solution with a fixed excitation wavelength of 458nm, and draw the fluorescence intensity curve 1;

[0048] 4) adding the water to be tested in the standard solution, and standing for 10min, then using the same fixed excitation wavelength as step 2) to carry out the fluorescence spectrum measurement of the standard solution after adding the water to b...

Embodiment 3

[0050] Embodiment 3: A kind of detection water BF 4 - 、H 2 PO 4 - and HSO 4 - method, the steps are as follows:

[0051] 1) Dissolve monomethyl six-membered cucurbit ring in secondary water at pH=7 to prepare solution A, then dissolve trans-4-4(dimethylamino)styryl-1-picoline iodine in pH=7 Secondary water to prepare the B solution, and finally the A solution and the B solution are in the molar ratio of monomethyl six-membered cucurbit ring and trans-4-4 (dimethylamino) styryl-1-picoline iodine in a molar ratio of 1:1 React at room temperature after mixing to obtain a supramolecular complex based on a monomethyl six-membered cucurbit ring;

[0052] 2) The supramolecular complex based on the monomethyl six-membered cucurbit ring was dissolved in water to prepare a concentration of 2.0*10 -5 mol / L standard solution;

[0053] 3) Measure the fluorescence spectrum of the standard solution with a fixed excitation wavelength of 458nm, and draw the fluorescence intensity curv...

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PUM

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Abstract

The invention discloses a method for detecting BF in water 4 ‑ 、H 2 PO 4 ‑ and HSO 4 ‑ The method is to prepare a supramolecular complex based on a monomethyl six-membered cucurbit ring with a monomethyl six-membered cucurbit ring and trans-4-4 (dimethylamino) styryl-1-picoline iodine as raw materials , using the supramolecular complex as a fluorescent probe to detect BF in water 4 ‑ 、H 2 PO 4 ‑ and HSO 4 ‑ . The present invention can treat BF in water 4 ‑ 、H 2 PO 4 ‑ and HSO 4 ‑ For detection, the sensitivity is high, the cost is low, the operation is simple, and the detection is fast.

Description

technical field [0001] The invention relates to a method for detecting various anions in water, in particular to a method for detecting BF in water 4 - , H 2 PO 4 - and HSO 4 - Methods. Background technique [0002] my country has made corresponding regulations on the concentration of some common anions in drinking water. At present, the detection and analysis of anions in aqueous solution are mainly through the use of ion chromatography and so on. These methods have high accuracy and sensitivity, but these detection equipment are expensive and require very professional detection technicians to complete, and the detection cost is relatively high. [0003] Fluorescent probe is a new type of detection method, which is favored by people because of its advantages of high sensitivity, low detection cost, simple sample processing, convenient operation, rapid determination and real-time detection. However, currently there are few fluorescent probes for the detection of ani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64
CPCG01N21/643G01N2021/6417G01N2021/6432
Inventor 黄赛胥卫涛王新新陶朱
Owner GUIZHOU UNIV
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