کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
107039 | 161742 | 2011 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dichroism measurements in forensic fibre examination: Part 3 — Dyed cotton and viscose fibres
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dichroism measurements in forensic fibre examination: Part 3 — Dyed cotton and viscose fibres Dichroism measurements in forensic fibre examination: Part 3 — Dyed cotton and viscose fibres](/preview/png/107039.png)
چکیده انگلیسی
A number of dyed cellulosic fibres were examined with plane polarized light on their dichroic behavior by microscopy and microspectrophotometry (MSP-PPL). Significant dichroic effects (mostly hypochromic effects and hypsochromic bands shifts) were reported. The effect is related to the chemical structure: some dye structures always possess dichroism (azo, stilbene, thiazole and oxazine), some dyes demonstrate sometimes dichroic effects (anthraquinoid, indigoid) while other structures never demonstrate dichroic effects (sulphur, diphenylmethanes, triarylmethanes, phthalocyanines). In some cases a different dichroic behavior was found for the same dyes applied on cotton and on viscose.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science & Justice - Volume 51, Issue 4, December 2011, Pages 173–186
Journal: Science & Justice - Volume 51, Issue 4, December 2011, Pages 173–186
نویسندگان
K. De Wael, L. Lepot,