Dersleri yüzünden oldukça stresli bir ruh haline sikiş hikayeleri bürünüp özel matematik dersinden önce rahatlayabilmek için amatör pornolar kendisini yatak odasına kapatan genç adam telefonundan porno resimleri açtığı porno filmini keyifle seyir ederek yatağını mobil porno okşar ruh dinlendirici olduğunu iddia ettikleri özel sex resim bir masaj salonunda çalışan genç masör hem sağlık hem de huzur sikiş için gelip masaj yaptıracak olan kadını gördüğünde porn nutku tutulur tüm gün boyu seksi lezbiyenleri sikiş dikizleyerek onları en savunmasız anlarında fotoğraflayan azılı erkek lavaboya geçerek fotoğraflara bakıp koca yarağını keyifle okşamaya başlar

GET THE APP

Plasma Treatment-Promising Tool for Preparation of Disposable Monolithic Columns | OMICS International | Abstract
ISSN: 2155-9872

Journal of Analytical & Bioanalytical Techniques
Open Access

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

Plasma Treatment-Promising Tool for Preparation of Disposable Monolithic Columns

Ita Junkar1*, Gregor Primc1, Tanja Mivsek2, Matic Resnik1,3, Janez Kovac1, Andrijana Sever Skapin4, Ales Podgornik2 and Miran Mozetic1

1Jozef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia

2 University of Ljubljana, Faculty of Chemistry and Chemical Technology, Vecna pot 113, 1000 Ljubljana, Slovenia

3 Jozef Stefan International Postgraduate School, Jamova cesta 39, 1000 Ljubljana, Slovenia

4 Slovenian National Building and Civil Engineering Institute, Dimiceva ulica 12, 1000 Ljubljana, Slovenia

*Corresponding Author:
Ita Junkar
Jamova cesta 39
1000 Ljubljana, Slovenia
Tel:
+38614773398
Fax: +38614773440
E-mail: ita.junkar@ijs.si

Received date: May 29, 2015; Accepted date: June 25, 2015; Published date: July 02, 2015

Citation: Junkar I, Primc G, Mivsek T, Resnik M, Kovac J, et al. (2015) Plasma Treatment-Promising Tool for Preparation of Disposable Monolithic Columns. J Anal Bioanal Tech 6:253 doi: 10.4172/2155-9872.1000253

Copyright: © 2015 Junkar I, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Atmospheric pressure plasma jet was employed to improve adhesion between polypropylene (PP) column wall and monolith used in chromatography. Different treatment conditions for modification of PP tube were used and the effects of treatment were analysed with X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Modified surfaces had higher oxygen content and surface was covered with small grain like structures. To explore effects of modification on adhesion between PP tube and monolith tensile strength measurements were conducted. It was shown that appropriate treatment conditions significantly increased bonding strength. The improvement of adhesion was attributed to increased oxygen functional groups obtained from plasma.

Keywords

Top