Sample Preparation Workshop - Ottawa - November 16, 1st Announcement.
SPECTROSCOPY SOCIETY OF CANADA
Notice of Workshop - Ottawa - November 16
Subject: Sample Preparation Workshop - Ottawa - November 16
The Spectroscopy Society of Canada has arranged for a seminar on
sample preparation for Tuesday, November 16, 2004. The seminar will
be conducted by Dr. Joe Brenner of Ben Gurion University in Israel.
He will be giving a modified version of his popular ACS course. Dr.
Brenner is widely acknowledged as one of the World's leading experts
on sample preparation with nearly 100 publications on the subject.
Please see the attachment for more details or contact Conrad Gregoire
at 613-995-4213 or [Only registered users see links. ].
SAMPLE PREPARATION STRATEGIES AND THEIR IMPACT ON
ICP-AES AND ICP-MS RESULTS
Join the Spectroscopy Society of Canada on Tuesday, November 16, 2004,
for a sample preparation workshop conducted by Dr. Joe (Isaac)
Brenner. One of the world's leading authorities on sample
preparation, Dr. Brenner will deliver a version of his regular ACS
sample preparation course.
Sample solution integrity and reliability of preparation protocols
dictate whether results are valid. Errors in sample preparation are
the main source of uncertainty in the entire analytical process. This
short course will address the status, requirements, and challenges of
sample preparation for a wide range of analytical tasks and materials
using ICP-AES and MS. The advantages and disadvantages of various
procedures will be critically evaluated using conventional figures of
merit such as LODs, contamination, multielement capability, recovery
of labile and refractory elements, convenience of operation,
automation, cost, sample size, and sample throughput. Among techniques
discussed will be fusions, sinters, mixed acid routines in closed
vessels and microwave ovens, and partial digestion for mode of analyte
The uniqueness of this session is the impact of sample preparation on
the measurement system - on interferences in the aerosol generation
and transport systems, in the plasma and in the ICP-MS interface.
Sample preparation therefore is not a stand-alone part of the analysis
but critically effects sample introduction and detection.
Several selected applications for analysis of environmental,
geological, biological, metallurgical, petrochemical and energy-based
materials such as fly ash and coal, crude oils and multiphase
bituminous sludges will be described. In particular, routines employed
in trace element analysis of environmental and waste materials
(Standard Methods, EPA 200.7, 200.8, SW846 6010 and 6020 and the 3000
series) will be detailed. Aspects of laboratory accreditation will be
Coffee and light refreshments will be served.
- Advantages of solution techniques, calibration and validation.
- Strategies. Acid decomposition, fusions, sinters, open dish,
pressurized containers, microwave digestion.
- Partial decomposition and extraction for determining mode of
occurrence of elements and species
- Advantages and disadvantages of the strategies in terms of chemical
resistance of refractory samples, loss of volatiles, poor recovery,
reagent cost, contamination and sample throughput.
Preparation of geological, environmental, biological and energy-based
samples such as fly ash, coal, crude oil and multiphase bituminous
- Open dish and closed containers, microwave dissolution and fusion
procedures for selected materials be described in detail. - The
procedures will be evaluated using conventional figures of merit such
as limits of detection, recovery, sample throughput, and
- Sample preparation for compliant analysis of waters, wastewaters,
and solid wastes (EPA 200.7, 200.8, SW-846 6010B, 6020A and the
3000 series) will be highlighted.
- Partial extractions using species selective reagents
Effect of sample preparation on the plasma and sample introduction
- Salt and acid interferences, memory effects. Easily ionized element
effects, salt clogging in torch injectors and in ICP-MS cones.
An opportunity to meet with other analysts and exchange views.
- Compensation of interference effects: Review of approaches to
overcoming sample-preparation related interference effects in
ICP-AES and MS.
- Low consumption nebulizers, robust ICPs, internal standards, and
reaction and collision cells.
- Axial vs. radial ICP-AES considerations
- Comparison of open and closed vessels with microwave-assisted
- Problem solving in sample preparation.
- Is direct solids analysis using laser and spark ablation and slurry
nebulization alternatives to sample preparation.