Boo! Afraid Of Ghost Peaks? Inert Coatings Exorcise The Spirit
Subscribe
Oil & Gas, Upstream & Downstream
LC & GC Chromatography
Corrosion
Chemical Inertness
Sulfur Analysis
Automotive And Aerospace
Hydrophobicity & Moisture Resistance
Non-stick, Anti-fouling
Purity
Semiconductor
SilcoTek
Bio-medical
function hsOnReadyGoogleSearch_4146() {
var url = ‘http://google.com/search?q=site:’ + location.protocol + ‘//’ + location.hostname + ‘ ‘;
var $searchModule = document.querySelector(‘.hs-search-module-4146’);
var $input = $searchModule.querySelector(‘input’);
var $button = $searchModule.querySelector(‘.hs-button.primary’);
if (false) {
$input.value = decodeURIComponent(location.pathname.split(‘/’).join(‘ ‘).split(‘.’).join(‘ ‘).split(‘-‘).join(‘ ‘).split(‘_’).join(”));
}
$button.addEventListener(‘click’, function(){
var newUrl = url + $input.value;
var win = window.open(newUrl, ‘_blank’);
if (win) {
win.focus();
} else {
location.href = newUrl;
}
});
$input.addEventListener(‘keypress’, function(e){
if (e.keyCode !== 13) return;
e.preventDefault();
$button.click();
});
}
if (document.readyState === “complete” ||
(document.readyState !== “loading” && !document.documentElement.doScroll)
) {
hsOnReadyGoogleSearch_4146();
} else {
document.addEventListener(“DOMContentLoaded”, hsOnReadyGoogleSearch_4146);
}
Boo! Afraid Of Ghost Peaks? Inert Coatings Exorcise The Spirit
Published on October 29 2015
Ghost peaks don’t have to be scary! On this Halloween, focus your energy on watching for the real thing, not ghosts in your sampling system or GC. Seemingly unexplained peaks can be attributed to contamination. But actually finding the source of the contamination can be a scary thought, especially in a complex refinery or process plant sample system.
Here are some tips to exorcise the ghost in your sampling system:
|
Coating liners, tubing, fittings, injection ports, and other sampling components with inert coatings like SilcoNert® 2000 or Dursan® will help to prevent adsorption and subsequent ghostly desorption of active and reactive compounds.
Here’s a quick comparative test to show how stainless steel surfaces can take up sample compounds and then release them over time. In this example 100 ft of 1/8in tubing was exposed to a 500ppm sulfur stream. After about 90 minutes of exposure, the analyst flowed pure nitrogen through the line. The graph below shows a release of sulfur onto the detector after several minutes of flow. The delayed sulfur release could be a source of ghost peaks or cross contamination of samples.
So on this Halloween, enjoy the candy and costumes, don’t fret about the ghost!
hbspt.cta._relativeUrls=true;hbspt.cta.load(22765, ‘a43cb6c7-1c6e-40d2-bc13-14b1eecc8bcb’, {“useNewLoader”:”true”,”region”:”na1″});
Posted by Marty Higgins
Topics:
Process Analytical,
bio-medical,
Chemical Inertness,
LC & GC Chromatography
Recommended Reading
Could Uncertainty Be Killing Your Test? 3 Tips For Better Sampling
Minamata And The Importance of Accurate Mercury Testing
PTFE vs. SilcoTek Coatings, The Proof Is In The Performance
Leave A Comment
$(document).ready(function(){
$(`.popButtonActivator`).on(‘click’, function(){
$(`.popModal`).show();
});
$(‘.fas.fa-window-close’).on(‘click’, function(){
$(‘.Pmodal’).hide();
});
});
Featured Content:
SilcoTek 101
Recent Posts
Posts by Topic
- Process Analytical (141)
- SilcoTek (129)
- Chemical Inertness (109)
- Corrosion (98)
- LC & GC Chromatography (69)
- Oil & Gas Upstream & Downstream (51)
- sulfur analysis (45)
- Purity (34)
- bio-medical (31)
- Silicon coating properties (29)
- Non-stick, Anti-fouling (23)
- Hydrophobicity & Moisture Resistance (20)
- Semiconductor (17)
- Greenhouse Gas Emissions (8)
- Automotive And Aerospace (5)
- food flavor and fragrance (5)
- Coating Selection (4)
see all
Subscribe To Email Updates
hbspt.forms.create({
css: ”,
portalId: ‘22765’,
formId: ‘c5febe5e-03b3-4f18-ae84-ada28fd86e80’
});