利用自旋探针 EPR 法直接对橡胶树根部的天然橡胶进行快速定量分析的新方法

IF 0.8 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY Doklady Chemistry Pub Date : 2024-01-20 DOI:10.1134/s0012500823600955

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引用次数: 0

摘要

摘要发现了一种稳定的硝基自由基 TEMPO 选择性吸附在干燥和分散的国槐根粉末中的橡胶颗粒上的现象。橡胶根材料的这一特征有助于开发一种新的、高灵敏度的橡胶定量分析方法，该方法通过测量 EPR TEMPO 信号的综合强度来进行定量分析。该方法的主要优点是速度快，能够直接测定植物根部微量（5-30 毫克）的橡胶含量。

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A New Quantitative Method of Express Analysis of Natural Rubber Directly in the Root of the Rubber Plant by the Spin Probe EPR Method

Abstract

The phenomenon of selective sorption of a stable nitroxyl radical TEMPO on rubber particles in the powder of dried and dispersed root of kok-saghyz has been discovered. This feature of the rubber-bearing root material has contributed to the development of a new, highly sensitive method of quantitative analysis of rubber by measuring the integrated intensity of the EPR TEMPO signal. The main advantages of the proposed method are the speed and the ability to determine the content of rubber directly in the roots of the plant in microquantities (5–30 mg).

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来源期刊

Doklady Chemistry 化学-化学综合

CiteScore

1.20

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Doklady Chemistry is a journal that publishes new research in chemistry and chemical engineering of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.