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New Application of Indole Chloride

A technology of indole chloride and cyanoethyl, which is applied in the field of known compounds and can solve problems such as maximum absorption wavelength and large photostability

Active Publication Date: 2021-05-04
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in the research of using cyanine dyes as complexing agents for the determination of elements, it is difficult to take into account the two conditions of large maximum absorption wavelength and good photostability, so there are many limitations in this application.

Method used

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  • New Application of Indole Chloride
  • New Application of Indole Chloride
  • New Application of Indole Chloride

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Embodiment Construction

[0028] The present invention will be further elaborated below in conjunction with embodiment, but should not limit protection scope of the present invention with this.

[0029] Embodiments of the present invention are as follows:

[0030] Spectrophotometric detection of trace amounts of platinum in laser glass samples. The complexing agent uses 2-[2-[4-[(2-cyanoethyl)-methyl-amino]-phenyl]-vinyl]-1,3,3-trimethyl-3H-indole Chloride, produced by TCL, was purchased from China Reagents.com; the ultraviolet-visible spectrophotometer was PerkinElmer Lambda 950UV-VIS-NIR, with a wavelength range of 400-650nm.

[0031] A. Solution preparation:

[0032] 10mg·L -1 Pt (IV) standard solution: take an appropriate amount of 1000mg L -1 Pt (IV) standard solution (manufactured by Macklin), add deionized water, dilute to obtain 10mg L -1 Pt(IV) standard solution.

[0033] Complexing agent solution: accurately weigh 34.40 mg of 2-[2-[4-[(2-cyanoethyl)-methyl-amino]-phenyl]-vinyl]-1,3,3-tr...

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Abstract

The present invention discloses indole chloride, namely 2-[2-[4-[(2-cyanoethyl)-methyl-amino]-phenyl]-vinyl]-1,3,3-trimethyl A new application of ‑3H‑indole chloride in the spectrophotometric determination of platinum. When the compound is used as an organic complexing agent to measure platinum by spectrophotometry, it mainly includes the following steps: preparation of solution, drawing of a standard curve, and determination of samples. The sample determination includes: sample digestion, complexation reaction, liquid-liquid extraction, absorbance measurement. The determination method provided by the invention can avoid the near-ultraviolet saturation absorption zone and the platinum ion absorption band, has rapid color development, stable complexation products, strong anti-interference, good selectivity to platinum, safety and harmlessness, and environmental friendliness. It can be used for the separation, enrichment and detection of trace platinum in environmental water samples, model water samples, and glass.

Description

technical field [0001] The present invention pertains to novel uses of known compounds, more particularly to 2-[2-[4-[(2-cyanoethyl)-methyl-amino]-phenyl]-vinyl]-1, Application of 3,3-trimethyl-3H-indole chloride in the determination of platinum by spectrophotometry. Background technique [0002] The application of platinum is mainly in the field of environment and biology, and there are also many applications in jewelry and nanometer fields. In addition, platinum also plays a huge role in the optical material industry as it is the basic melting vessel for optical glass. Melting phosphate laser glass in a platinum crucible can make the glass have high optical quality and uniformity, and platinum enters the glass as impurities in the form of platinum ions and platinum particle inclusions. With the improvement of the process, the content of platinum as an impurity is controlled at the ppm level, but it can still greatly affect the laser efficiency and performance consistency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78G01N21/31G01N1/44G01N1/28
CPCG01N1/28G01N1/44G01N21/31G01N21/78
Inventor 陈思陈伟胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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