naglaa_abdallah

Naglaa Youssef Abdallah

مدرس - Lecturer

كلية العلوم

العنوان: جامعه سوهاج - كليه العلوم- قسم النبات والميكروبيولوجى

1

إعجاب
6 1 2 18 4 3 294 179
100

أضيف حديثا
  • المقررات الدراسية 6
  • ملحقات المقررات الدراسية 1
  • واجبات المقررات الدراسية 2
  • المنشورات و المؤلفات 18
  • ساعات مكتبية 4
  • الاعلانات 3
  • عدد الملفات المرفوعه 1
  • كل التنزيلات 4

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: forensic

In-situ detection of drugs-of-abuse on clothing using confocal Raman microscopy

2018-10-28 11:39:08 الكلمات المفتاحية forensic, Drug discrimination, textiles, confocal Raman microscopy, 4-methylenedi, N-methyl-3, Cocaine hydrochloride,
In-situ detection of drugs-of-abuse on clothing using confocal Raman microscopy
This study describes the application of confocal Raman microscopy to the detection and identification of drugs-of-abuse in situ on undyed natural synthetic fibres, and coloured textile specimens. Raman spectra were obtained from drug particles trapped between the fibres of the specimens. Pure samples of cocaine hydrochloride and N-methyl-3,4-methylenedioxy-amphetamine HCl (MDMA-HCl) were used in this study. Raman spectra were collected from ... إقراء المزيد

Detection of explosives on human nail using confocal Raman microscopy

2018-10-28 11:35:03 الكلمات المفتاحية Raman spectroscopy, human nail, explosive precursors, explosives, forensic,
Detection of explosives on human nail using confocal Raman microscopy
Trace amounts of explosives were detected on human nail using confocal Raman microscopy. Contamination of the nail can result from the manual handling, packaging or transportation of explosive substances. Raman spectra were obtained from pentaerythritol tetranitrate (PETN), trinitrotoluene (TNT), ammonium nitrate and hexamethylenetetramine (HMTA) particles on the surface of the nail with dimensions in the range 5–10 µm. An added ... إقراء المزيد

Raman spectroscopy and security applications: the detection of explosives and precursors on clothing

2018-10-28 11:29:12 الكلمات المفتاحية forensic, explosive precursors, explosives, textiles, confocal Raman microscopy,
Raman spectroscopy and security applications: the detection of explosives and precursors on clothing
This study describes the application of confocal Raman microscopy to the detection and identification of explosives and their precursors _in situ_ on undyed natural and synthetic fibres and coloured textile specimens. Raman spectra were obtained from explosives particles trapped between the fibres of the specimens. The explosives pentaerythritol tetranitrate (PETN), trinitrotoluene (TNT), and ammonium nitrate as well as the explosives ... إقراء المزيد

Forensic and security applications of a longwavelength dispersive Raman system

2018-10-28 10:32:03 الكلمات المفتاحية explosives, drugs of abuse, 1064 nm;, dispersive near-IR Raman;, forensic,
Forensic and security applications of a longwavelength dispersive Raman system
A novel dispersive system operating at 1064-nmexcitation and coupled with transfer electron InGaAs photocathode and electron bombardment CCD technology has been evaluated for the analysis of drugs of abuse and explosives. By employing near-IR excitation at 1064-nm excitation wavelength has resulted in a significant damping of the fluorescence emission compared to 785-nm wavelength excitation. Spectra of street samples of drugs ... إقراء المزيد

In situ detection of cocaine hydrochloride in clothing impregnated with the drug using benchtop and portable Raman spectroscopy

2018-10-28 11:21:47 الكلمات المفتاحية forensic, Raman spectroscopy;, in situ detection;, cocaine impregnated textiles;,
In situ detection of cocaine hydrochloride in clothing impregnated with the drug using benchtop and portable Raman spectroscopy
This study describes the application of benchtop and portable Raman spectroscopy for the _in situ_ detection of cocaine hydrochloride in clothing impregnated with the drug. Raman spectra were obtained from a set of undyed natural and synthetic fibres and dyed textiles impregnated with the drug. The spectra were collected using three Raman spectrometers: one benchtop dispersive spectrometer coupled to a ... إقراء المزيد

In-situ detection of single particles of explosive on clothing with confocal Raman microscopy.

2018-10-28 11:32:29 الكلمات المفتاحية textiles, confocal Raman microscopy, explosives, forensic,
In-situ detection of single particles of explosive on clothing with confocal Raman microscopy.
Confocal Raman microscopy is shown to detect picogram quantities of explosives in-situ on undyed natural and synthetic fibres, and coloured textile specimens leaving potentially evidential materials unaltered. Raman spectra were obtained from pentaerythritol tetranitrate (PETN), trinitrotoluene (TNT), and ammonium nitrate particles trapped between the fibres of the specimens. Despite the presence of spectral bands arising from the natural and synthetic ... إقراء المزيد

Raman Spectroscopy: an aid to forensic and crime scene analysis

2018-10-29 06:30:03 الكلمات المفتاحية forensic, applications, Raman spectroscopy,
Raman Spectroscopy: an aid to forensic and crime scene analysis
A field-portable Raman spectrometer is a reliable technique that can be used by emergency response teams to rapidly identify unknown samples. The portability and rapidity of the analysis are significant advantages. These criteria are significantly important for law enforcement agencies working in the field and dealing with relatively large numbers of samples on a daily basis. إقراء المزيد

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