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Water-carrying flow atomic fluorescence analysis device for analytical chemistry and innovative analysis method

A technology of analytical chemistry and atomic fluorescence, applied in measuring devices, analytical materials, fluorescence/phosphorescence, etc., can solve problems such as late development, difficulty in sample measurement, interference, etc., and achieve the effects of preventing scattering, improving fluorescence brightness, and strong practicability

Pending Publication Date: 2021-06-22
路桂娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, existing atomic fluorescence analyzers still have problems such as fluorescence quenching effect and interference of scattered light. At the same time, it is difficult for the existing atomic fluorescence analysis method to be used in the measurement of complex matrix samples, and it is developed late in the field of analytical chemistry. Therefore, , which are less widely used than atomic emission spectrometry and atomic absorption spectrometry

Method used

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  • Water-carrying flow atomic fluorescence analysis device for analytical chemistry and innovative analysis method
  • Water-carrying flow atomic fluorescence analysis device for analytical chemistry and innovative analysis method
  • Water-carrying flow atomic fluorescence analysis device for analytical chemistry and innovative analysis method

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Embodiment 1

[0037] The present invention provides an innovative analysis method of water-carrying atomic fluorescence for analytical chemistry, and the specific steps are as follows:

[0038] Step 1: Preparation of solution: According to the different types of chemical reagents, rely on the guidelines for making chemical solutions to prepare standard solutions, sample solutions, lithium aluminum hydride solutions, and 800ml of distilled water;

[0039] Step 2: Adjust the instrument parameters: start the atomic fluorescence analyzer, adjust its parameters to the working state, and put 800ml of distilled water in two cups for cleaning water and carrier water respectively;

[0040] Step 3: Fluorescence quenching and reactivation: Mix ethylene glycol, paramagnetic transition-state metal ion compound and water in a ratio of 0.1:0.5:4 to make a quenching solution with a pH of 3.5 and a transition-state metal ion concentration of 9mM Chemical reagent, mix sodium dichloroindophenol, disodium hydr...

Embodiment 2

[0046] The present invention provides an innovative analysis method of water-carrying atomic fluorescence for analytical chemistry, and the specific steps are as follows:

[0047] Step 1: Preparation of solution: According to the different types of chemical reagents, rely on the guidelines for making chemical solutions to prepare standard solutions, sample solutions, lithium aluminum hydride solutions, and 900ml of distilled water;

[0048] Step 2: Adjust the instrument parameters: start the atomic fluorescence analyzer, adjust its parameters to the working state, and put 900ml of distilled water in two cups for cleaning water and carrier water respectively;

[0049] Step 3: Fluorescence quenching and reactivation: Mix ethylene glycol, paramagnetic transition state metal ion compound and water in a ratio of 0.2:0.4:5 to make a quenching solution with a pH of 4.6 and a concentration of transition state metal ions of 300mM Chemical reagent, mix sodium dichloroindophenol, disodiu...

Embodiment 3

[0055] The present invention provides an innovative analysis method of water-carrying atomic fluorescence for analytical chemistry, and the specific steps are as follows:

[0056] Step 1: Preparation of solution: According to the different types of chemical reagents, rely on the guidelines for making chemical solutions to prepare standard solutions, sample solutions, lithium aluminum hydride solutions, and 1000ml of distilled water;

[0057] Step 2: Adjust the instrument parameters: start the atomic fluorescence analyzer, adjust its parameters to the working state, and put 1000ml of distilled water into two cups for cleaning water and carrying water respectively;

[0058] Step 3: Fluorescence quenching and reactivation: Mix ethylene glycol, paramagnetic transition-state metal ion compound and water at a ratio of 0.25:0.7:7 to make a quenching solution with a pH of 6.3 and a concentration of transition-state metal ions of 502mM Chemical reagent, mix sodium dichloroindophenol, d...

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Abstract

The invention discloses a water-carrying flow atomic fluorescence analysis device for analytical chemistry and an innovative analysis method, and relates to the field of water-carrying flow atomic fluorescence analysis. The water-carrying flow atomic fluorescence analysis device comprises an analyzer, the bottom of the analyzer is fixedly connected with a bottom plate, a limiting groove is formed in the upper wall of the bottom plate, and three clamping grooves are formed in the outer wall of the bottom plate at equal intervals; and clamping pins are rotationally connected to the middle parts of the three clamping grooves. Through the arrangement of the driving gear and the driven elliptical gear, when the inner walls of the three lamps face inwards synchronously and form a triangle, the lamps are excited to emit light, lamplight is fully irradiated into a reagent bottle, the three light sources are concentrated in the reagent bottle at the same time, the fluorescence brightness is improved, the three light sources are arranged in the triangle shape, scattering of light is prevented to a certain extent, and the practicability is improved; the fluorescence intensity contrast ratio is greatly increased through the setting of the step 3, the operation method is simple and convenient to operate, the adopted chemical reagent is low in cost, and the imaging effect of further imaging of atomic fluorescence is guaranteed.

Description

technical field [0001] The invention relates to the technical field of water-carrying atomic fluorescence analysis, in particular to a water-carrying atomic fluorescence analysis device and an innovative analysis method for analytical chemistry. Background technique [0002] The substance is excited after absorbing electromagnetic radiation, the excited atoms or molecules are deactivated by radiation, and then emit radiation with the same or different wavelength from the excitation radiation. When the excitation light source stops irradiating the sample, the re-emission process stops immediately, and this re-emission light is called fluorescence; if the re-emission process continues for a period of time after the excitation light source stops irradiating the sample, this re-emission light is called fluorescence. for phosphorescence. Both fluorescence and phosphorescence are photoluminescence, because atomic fluorescence spectroscopy has a lower detection limit, high sensiti...

Claims

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Application Information

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IPC IPC(8): G01N21/64G01N21/01
CPCG01N21/6428G01N21/643G01N21/01G01N2021/6432
Inventor 路桂娟唐艳强
Owner 路桂娟
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