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ATR-FTIR Spectroscopy analysis of silk

机译：丝绸的ATR-FTIR光谱分析

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摘要

Fourier Transform-Infrared Spectroscopy (FTIR) is an analytical technique used to identify organic materials. Some of the preparation techniques like KBr pellet are time-consuming and destructive extraction procedures are involved. But recent studies show an attachment of Attenuated total reflection (ATR) unit with IR spectroscopy that eliminates above drawbacks. It is a sampling technique used in conjunction with infrared spectroscopy, which enables samples to be examined directly in the solid or liquid state without further preparation. Very few studies have been done using ATR-FTIR on silk for identification of functional groups and to identify the fibre. Therefore, in this study, identification of silk materials using infrared spectral analysis (ATR-FTIR), as a tool for detection of functional groups has been carried out. This method requires minimal sample preparation by ATR sampling on a small piece of material, permits routine analysis rapidly and non-destructively, and is easy to operate also eliminates environment pollution. Raw, degummed and dyed silk show functional groups characteristic of silk and dyed silk using direct, acid and metal-complex showed amino group and hydroxyl group indicating slight change in the spectra. Spectra of commercial silk sarees resulted to show a characteristic band of silk similar to raw and degummed silk. Comparing mulberry and non-Mulberry spun silk, spectra of functional groups have similar basic protein molecules irrespective of varying sericin and amino acid molecules. Nylon showed different IR spectra that can be differentiated from Silk and differentiating wool requires additional method to reduce analyst strain.
机译：傅里叶变换红外光谱（FTIR）是一种用于识别有机材料的分析技术。一些制备技术，如KBR颗粒是占用的耗时和破坏性的提取程序。但最近的研究表明，衰减的全反射（ATR）单元与IR光谱的附着，以消除上述缺点。它是与红外光谱一起使用的采样技术，其使得能够在没有进一步制备的情况下直接在固体或液态中检查样品。在丝绸上使用ATR-FTIR进行了很少的研究，以鉴定官能团并鉴定纤维。因此，在该研究中，使用红外光谱分析（ATR-FTIR）识别丝材料，作为用于检测官能团的工具。该方法需要通过ATR采样在一小块材料上进行最小的样品制备，允许速度和非破坏性地进行常规分析，并且易于操作也消除了环境污染。原料，脱胶和染色的丝绸展示丝和染色丝用直接，酸和金属 - 络合物的氨基和羟基显示氨基和羟基，表明光谱略有变化。商业丝绸纱的光谱导致呈现出类似于原料和脱胶的丝绸的特征乐队。比较桑椹和非桑蚕丝绸，官能团的光谱与不同于不同的硅蛋白和氨基酸分子而言，官能团的光谱具有类似的基本蛋白质分子。尼龙显示出不同的红外光谱，可以从丝绸和区分羊毛中区分开，需要额外的方法来减少分析菌株。

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  • 来源
    《Colourage》 |2019年第1期|29-33|共4页
  • 作者

    D.Sargunamani; K.Raghu; Subhas Ⅴ Naik;

  • 作者单位

    Silk Conditioning & Testing House Central Silk Technological Research Institute Central Silk Board Kancheepuram-631502 India;

    Silk Conditioning & Testing House Central Silk Technological Research Institute Central Silk Board Kancheepuram-631502 India;

    Silk Conditioning & Testing House Central Silk Technological Research Institute Central Silk Board Kancheepuram-631502 India Central Silk Technological Research Institute Central Silk Board Bengaluru- 560068;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Silk; Mulberry; ATR-FTIR; Zari; IR spectra;

    机译：丝绸;桑;ATR-FTIR;Zari;红外光谱;

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