تحديد الكبريت وبعض العناصر الثقيلة في الكوك

Authors

  • محمد معروف

Abstract

تمّ تحديد محتوى الكبريت الحرّ وبعض العناصر الثقيلة (,pb Cr As, Hg, Zn, Cu, Se,) في الكوك الناتج عن مخلفات الصناعة النفطية باستخدام طرائق تحليل آلية مختلفة.

استخدمت تقانة الامتصاص الذري باللهبFAAS)) في تحديد كل من الرصاص, النحاس, الكروم, الزنك واستخدمت تقانة الامتصاص الذري مع مولد الهيدريداتVGA-AAS)) لتعيين كل من الزرنيخ والسيلينيوم وكان تحديد الزئبق على البخار البارد (CV-AAS ).

أما تحديد الكبريت فكان باستخدام طريقة الأكسدة الكلية له عند درجات حرارة مرتفعة
(1100Co) ومن ثم التعيين اللاحق له باستخدام كاشف IR الذي يعطي إشارة امتصاص للغاز في زمن لا يزيد عن الدقيقتين. لم يتجاوز الانحراف النسبي المرتكب في تحديد الكبريت المقدار 0.01 والمقدار 0.04 بالنسبة لتحديد العناصر الأخرى بطريقة الامتصاص الذري.

 

The content of free sulfur and some heavy elements in the coke resulting from the residua of oil industry was determined by using various technical analytical methods.

The flame technique of atomic absorption FAAS was used to identify lead, copper, zinc, chromium, VGA-AAS and determine arsenic and selenium, CV-AAS to the determination of mercury. As for sulfur, it was determined by using the total oxidation method at high temperatures (1100Co). The IR indicator was used for further determination.

The relative standard deviation in the determination of sulfur did not exceed the limits of 0.01 and 0.02, compared to the determination of other elements by using the atomic absorption method.

Downloads

Published

2018-12-02

How to Cite

1.
معروف م. تحديد الكبريت وبعض العناصر الثقيلة في الكوك. TUJ-BA [Internet]. 2018Dec.2 [cited 2024May9];25(2). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4928

Issue

Vol. 25 No. 2 (2003): العلوم الأساسية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)

1 2 > >>