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New application of benzazole chloride

A technology of indole chloride and cyanoethyl, which is applied in the field of known compounds, can solve the problems of large maximum absorption wavelength and light stability, and achieve the effects of operator and environment friendliness, large absorption wavelength and rapid color development

Active Publication Date: 2019-04-16
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
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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 benzazole chloride
  • New application of benzazole chloride
  • New application of benzazole 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 new application of a benzazole chloride, namely, 2-[2-[4-[(2-cyanoethyl)-methyl-amino]-phenyl]-vinyl]-1,3,3-trimethyl-3H-benzazole chloride into spectrophotometry-basedplatinum measurement. When the compound, used as an organic complexing agent, is applied to spectrophotometry-based platinum measurement, the process mainly includes the following steps of: solutionpreparation; standard curve drawing; and sample measurement. The sample determination step further includes the steps of sample dissolution, complexation, liquid-liquid extraction, and absorbance measurement. The measuring method provided by the invention can avoid a near-ultraviolet saturated absorption zone and a platinum ion absorption band, has the advantages of rapid color development, stablecomplexation products, high anti-interference performance, good selectivity to platinum, high safety, innocuity, and environmental friendliness, and can be used for separation, enrichment and detection of environmental water samples, model water samples and glass trace platinum.

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 Applications(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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