NEWS Glass Expansion Newsletter | June 2017 | Issue 43
Dates and Events
Dealing with a sample matrix high in total dissolved solids (TDS) is a common
challenge for ICP spectrometry and generally most “real samples” analyzed by ICP
laboratories contain considerable concentrations of TDS. These sample types include
soils, sludge, wastewater, brines, high acid digests and fusions. The challenges
associated with these samples include interrupted runs, signal drift, clogged nebulizers,
shortened torch life, and greater interferences.
Due to the popularity of these analyses the very first issue of the Glass Expansion
Newsletter focused on methods to alleviate these challenges and improve ICP
performance.1 In June of 2010 we released a follow up application note, covering both
improvements in ICP design and new product releases pertinent to high salt matrices.2
Seven years have passed since our last “high TDS” application note and during this
time frame there have been several new additions and updated designs to the Glass
Expansion “high TDS” product line, in addition to new ICP spectrometer releases. Our
current issue highlights the performance of these new sample introduction options,
in addition to providing detailed maintenance procedures to reduce the frequency
of replacement and help maintain the performance of the ICP sample introduction
system. We also included an appendix with references from a wide range of ICP
manufactures covering high TDS applications utilizing the newest instrument releases.
The goal of this issue of the Glass Expansion Newsletter is to provide up-to-date guide
and useful tutorial for analyzing real samples by ICP spectrometry.
Sample Introduction System
An argon humidifier is one of the most important accessories for ICP-OES and ICPMS
analyses involving samples with high concentrations of TDS. The added moisture
in the nebulizer gas helps to reduce salt deposits in the nebulizer and torch injector,
allowing uninterrupted ICP operation. In addition to the argon humidifier, a large
bore injector is recommended, typically, greater than 1.5mm ID for radial view ICPOES
instruments and greater than 2.0mm ID for axial view ICP-OES and ICP-MS
instruments. Due to the rapid devitrification of quartz in the presence of high TDS,
a demountable ICP torch is preferred to reduce replacement costs. A nebulizer
capable of handling a high amount of TDS should be chosen and combined with a
baffled cyclonic spray chamber to eliminate large droplets from reaching the torch.
A wide selection of Glass Expansion
products will be on display at the
following exhibitions. The display will
include nebulizers, spray chambers,
torches, RF coils, ICP-MS cones
and accessories. Glass Expansion
specialists will be on hand to answer
your questions and assist you to
choose the optimum components for
your ICP.
One of
the Largest Exhibitions in Asia
for Analytical & Scientific
Instruments
Sep .6 8
G C C "Serving The World of Chemical Analysis"
Sponsors : Ministry of Economy, Trade and Industry(Japan) / Ministry of Education, Culture, Sports, Science and Technology( U.S. Commercial Service, U.S. Embassy, Tokyo / UK Trade & Investment Japan, British Embassy Tokyo 2017
Wed Fri
at Makuhari Messe, Japan
AM10: 0 0 ~ PM5:00
Event : New Technology Presentation / JASIS Featured Event : Life Science Innovation Zone / Open Concurrent Organizers :
Admission Free
https://www.jasis.jp/en/
Considerations when Analyzing
Real-World Samples by ICP
Spectrometry
Makuhari Messe, Japan, September
6 - 8, 2017.
https://www.jasis.jp/en/index.html
Houston, TX, October 3 - 4, 2017.
BOOTH # 616
https://www.gulfcoastconference.com
In this issue:
Application Spotlight...........................1 – 8
GE News..................................................1
New Products...........................................9
Guardian In-Line Non-Return Argon Filter
Instrument News.....................................10
From Analytik Jena
From SPECTRO
Application Spotlight
JASIS 2017
Gulf Coast Conference
/www.gulfcoastconference.com