Editors’ Series: Environmental Analysis Using Ion Chromatography Coupled with ICP-MS, with Examples from Climate Change Studies

This event will take place on October 17, 2013 at 11:00 AM EDT.

Ice cores drilled and retrieved from Greenland and Antarctica can inform us about climate and environmental conditions of the past, from seasonal to multi-millennial timescales. Whilst gas phase measurements of bubbles trapped inside the ice core can show us the atmospheric composition of the air in the past, the chemical impurities in the ice itself also yields information that reveal the sea ice proximity, air mass sources, precipitation patterns, and climate record of the drilling site region. Continuous flow analysis allows the determination of the concentration of various impurities in the melt-water at highly sensitive (sub ppb) levels, whilst maintaining the chronology of the precipitation sample using very narrow bore tubes and small sample volumes.

Inductively coupled plasma–mass spectrometry (ICP-MS) provides the elemental analysis of sea ice indicators such as Mg, Na, Cl, and Mg. An indication of dustiness and hence air mass source region is provided by Al. Small, atmospherically relevant molecules such as H2O2 and NH4+ are measured by spectrofluorometry and UV absorbance. The major anions (including F-, Cl-, SO42-) are measured using dual-channel fast ion chromatography (FIC) running in tandem to improve sample efficiency. The practicalities of using this suite of instruments coupled to a custom-built melt-head sampler for analyzing the precious ice samples will be discussed. Certain trace elements such as sulfur remain a challenge and so sulfate measurements are made using FIC, along with volcanic emissions and sea ice indicators.

This web seminar will introduce the field of ice core research and will focus on the technical aspects of the chemical analysis with a particular emphasis on fast ion chromatography measurements of methane sulfonate, one of the more promising indicators of sea ice extent near the drill site. Future ice core measurements will allow us to understand the detailed climate evolution of highly sensitive and globally important regions such as the Antarctic Peninsula.

Moderator:

Laura Bush

Editorial Director
LCGC

Speaker:

Dr. Ailsa K. Benton

Ice Core Analytical Scientist
Chemistry and Past Climate Programme
British Antarctic Survey


IMPORTANT - PLEASE READ
This is a FREE streaming audio Webcast and does not require a phone line. If you have any questions regarding this Webcast, please contact Kristen Farrell, kfarrell@advanstar.com.

Register for this FREE Webcast!

 If you have previously registered for this event, please login to the archive below:
 Email:
 LOGIN

Registration is required to attend this event. Please register now.
First Name*
Last Name*
Job Title*
Organization Name*
Organization Address*
Organization Address 2
City*
State or Province*
Zip/Postal Code*
Country*
E-mail address*
Work Phone*
Target Market
Would you like a sales representative to contact you?
Would you like a product demonstration?
Would you like a product quote?
Expected Purchase Month:
Expected Purchase Year:
 Check to receive email communications about Thermo Scientific products, events and special offers pertaining to my interests.
You must have javascript and cookies enabled to complete registration.
 
Please enable Cookies in your browser before registering for the webcast.
 
*Denotes required.
 
REGISTER

Advanstar Communications provides certain customer contact data (such as customers' names, addresses, phone numbers and e-mail addresses) to third parties who wish to promote relevant products, services and other opportunities which may be of interest to you. If you do not want Advanstar Communications to make your contact information available to third parties for marketing purposes, simply call (toll free) 1-866-529-2922 at any time, or fax us at 1-218-740-6417. Outside the U.S., please phone 1-218-740-6395.

Contact us by mail at Advanstar Communications Inc., 131 West First St., Duluth, MN 55802-2065, USA.

Privacy Policy