Recent Updates in the CAL Kim Attig, Nina Gartman, Lee Green, and Tracy Dombek National Atmospheric Deposition Program Central Analytical Laboratory (CAL) Illinois State Water Survey Institute of Natural Resource Sustainability University of Illinois at Urbana-Champaign Champaign, IL 61820; [email protected] Abstract In the past five years, important updates have taken place in the Central Analytical Laboratory (CAL). In the fall of 2007, the bucket cleaning room was moved to a refurbished and expanded area, which allowed the CAL to purchase and start using two new washers for cleaning buckets, lids, and bottles. In the summer of 2010, a new flow injection analysis instrument (FIA) was purchased. The new instrument is capable of doing low flow analysis as well as the method currently run at the CAL. Both methods on the new instrument were tested and results compared to the current method on the original FIA. In the summer of 2011, a new system and autosampler was purchased for ion chromatography (IC). With the AS-40 autosamplers which are currently used, the new ICS-5000 system is being tested and the results compared with the ICS-2000 systems. The new AS-AP autosampler was also tested on the ICS-2000 systems and results compared to the ICS-2000 systems with the AS- 40 autosamplers. Purchases such as these new instruments are important developments and show that the CAL is striving to progress and move forward along with the changing technology, while at the same time maintaining the standards of accuracy and precision which the lab already adheres to. The NADP a is National Research Support Project-3: A Long-Term Monitoring Program in Support of Research on the Effects of Atmospheric Chemical Deposition. More than 240 sponsors support the NADP, including State Agricultural Experiment Stations; universities; private companies and other non-governmental organizations; Canadian government agencies; state, local, and tribal government organizations; and federal agencies, including the U.S. Department of Agriculture-Cooperative State Research, Education, and Extension Service (under agreement no. 2008-39134-19508). Any findings or conclusions in this poster do not reflect the views of the U.S. Department of Agriculture or other NADP sponsors. The Illinois State Water Survey is a division of the Institute of Natural Resource Sustainability at the University of Illinois. Thanks to Pam Bedient and Chris Lehmann for poster formatting and review. New Bucket Washers Two new washers started being used in fall of 2007. Four buckets can fit in each washer at one time, which doubled our total washing capacity. The washers feature heated wash and rinse cycles. New FIA A new FIA was purchased in summer of 2010 to replace the aging FIA. New IC and autosampler A new ICS-5000 system and AS-AP autosampler were purchased in the summer of 2011. Conclusions Testing of the ICS-5000 system is ongoing. The AS-AP autosampler may be replaced with a model that utilizes our current vials. We suspect that the background measured in the vials specifically designed for use with the AS-AP is not within our acceptable limits. The new FIA is working well with the current method. The bucket washers work well! R² = 0.9998 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 New FIA Ammonium (ppm) Old FIA Ammonium (ppm) New FIA Ammonium vs Old FIA Ammonium MDL 0.006 ppm R² = 0.9953 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 New FIA Orthophosphate (ppm) Old FIA Orthophosphate (ppm) New FIA Orthophosphate vs Old FIA Orthophosphate MDL 0.008 ppm Median 95th percentile concentration 0.045 ppm Using the low flow method, the baseline drifted drastically over the timespan of a few samples. The baseline of a normal run with the current method used for ammonium is stable and does not drift. R² = 0.9987 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 ICS-5000 chloride (ppm) ICS-2000 chloride (ppm) ICS-5000 vs ICS-2000 Chloride MDL 0.005 ppm R² = 0.9995 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 ICS-5000 nitrate (ppm) ICS-2000 nitrate (ppm) ICS-5000 vs ICS-2000 Nitrate MDL 0.004 ppm R² = 0.9990 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 ICS-5000 sulfate (ppm) ICS-2000 sulfate (ppm) ICS-5000 vs ICS-2000 Sulfate MDL 0.003 ppm The ICS-5000 is being tested and results are comparable to the ICS-2000 using the AS-40 autosampler. When analyzing DI water in the vials manufactured for the ASAP autosampler, the background of sulfate and chloride routinely exceed our current detection limits. The new FIA was tested and results were found to be comparable and reliable using the same methods as the old FIA. No significant statistical differences were observed between the instruments. Low flow analysis was investigated on the new instrument, but the results indicated a loss of sensitivity with this method. ICS-5000 (2011) 2 Models ICS-2000 (2004) QuikChem 8500 (2010) QuikChem 8000 (1996) replaced in 2010 Forma Fury Model #8887 (1982) replaced in 2007 Thermo Forma Fury Model #8891 MDL’s • Cl - 0.005 ppm • NO 3 - 0.004 ppm • SO 4 2- 0.003 ppm 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 Cl SO4 NO3 amount of analyte detected (ppm) analyte DI Water Samples Analyzed Using the ASAP Autosampler CAL Staff (1982) replaced in 2010 CAL Staff (2011)
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Recent Updates in the CAL Kim Attig, Nina Gartman, Lee Green, and Tracy Dombek
National Atmospheric Deposition Program
Central Analytical Laboratory (CAL)
Illinois State Water Survey
Institute of Natural Resource Sustainability
University of Illinois at Urbana-Champaign
Champaign, IL 61820; [email protected]
Abstract
In the past five years, important updates have taken place in the Central Analytical Laboratory
(CAL). In the fall of 2007, the bucket cleaning room was moved to a refurbished and
expanded area, which allowed the CAL to purchase and start using two new washers for
cleaning buckets, lids, and bottles. In the summer of 2010, a new flow injection analysis
instrument (FIA) was purchased. The new instrument is capable of doing low flow analysis as
well as the method currently run at the CAL. Both methods on the new instrument were
tested and results compared to the current method on the original FIA. In the summer of
2011, a new system and autosampler was purchased for ion chromatography (IC). With the
AS-40 autosamplers which are currently used, the new ICS-5000 system is being tested and
the results compared with the ICS-2000 systems. The new AS-AP autosampler was also
tested on the ICS-2000 systems and results compared to the ICS-2000 systems with the AS-
40 autosamplers. Purchases such as these new instruments are important developments and
show that the CAL is striving to progress and move forward along with the changing
technology, while at the same time maintaining the standards of accuracy and precision which
the lab already adheres to.
The NADP a is National Research Support Project-3: A Long-Term Monitoring Program in Support of Research on the Effects of
Atmospheric Chemical Deposition. More than 240 sponsors support the NADP, including State Agricultural Experiment Stations; universities;
private companies and other non-governmental organizations; Canadian government agencies; state, local, and tribal government organizations;
and federal agencies, including the U.S. Department of Agriculture-Cooperative State Research, Education, and Extension Service (under
agreement no. 2008-39134-19508). Any findings or conclusions in this poster do not reflect the views of the U.S. Department of Agriculture or other
NADP sponsors. The Illinois State Water Survey is a division of the Institute of Natural Resource Sustainability at the University of Illinois.
Thanks to Pam Bedient and Chris Lehmann for poster formatting and review.
New Bucket Washers
Two new washers started
being used in fall of 2007.
Four buckets can fit in each
washer at one time, which
doubled our total washing
capacity.
The washers feature
heated wash and rinse
cycles.
New FIA
A new FIA was purchased in summer of 2010 to replace the aging FIA.
New IC and autosampler
A new ICS-5000 system and AS-AP autosampler were purchased in the summer of 2011.
Conclusions
Testing of the ICS-5000 system is ongoing.
The AS-AP autosampler may be replaced with a
model that utilizes our current vials. We suspect
that the background measured in the vials
specifically designed for use with the AS-AP is not
within our acceptable limits.
The new FIA is working well with the current
method.
The bucket washers work well!
R² = 0.9998
0
0.5
1
1.5
2
2.5
0 0.5 1 1.5 2 2.5
New
FIA
A
mm
on
ium
(p
pm
)
Old FIA Ammonium (ppm)
New FIA Ammonium vs Old FIA Ammonium
MDL 0.006 ppm
R² = 0.9953
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16
New
FIA
Ort
ho
ph
osp
hate
(p
pm
)
Old FIA Orthophosphate (ppm)
New FIA Orthophosphate vs Old FIA Orthophosphate
MDL 0.008 ppm Median 95th percentile
concentration
0.045 ppm
Using the low flow method, the baseline drifted
drastically over the timespan of a few samples.
The baseline of a normal run with the current method
used for ammonium is stable and does not drift.
R² = 0.9987
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
ICS
-5000 c
hlo
rid
e (
pp
m)
ICS-2000 chloride (ppm)
ICS-5000 vs ICS-2000 Chloride
MDL 0.005 ppm
R² = 0.9995
0
1
2
3
4
5
6
7
8
9
10
0 1 2 3 4 5 6 7 8 9 10
ICS
-5000 n
itra
te (
pp
m)
ICS-2000 nitrate (ppm)
ICS-5000 vs ICS-2000 Nitrate
MDL 0.004 ppm
R² = 0.9990
0
1
2
3
4
5
6
7
8
0 1 2 3 4 5 6 7 8
ICS
-5000 s
ulf
ate
(p
pm
)
ICS-2000 sulfate (ppm)
ICS-5000 vs ICS-2000 Sulfate
MDL 0.003 ppm
The ICS-5000 is being tested and results are comparable to the ICS-2000 using the AS-40 autosampler.
When analyzing DI water in the vials manufactured for
the ASAP autosampler, the background of sulfate and
chloride routinely exceed our current detection limits.
The new FIA was tested and results were found to be comparable and reliable
using the same methods as the old FIA. No significant statistical differences were
observed between the instruments.
Low flow analysis was investigated on the new instrument, but the results indicated
a loss of sensitivity with this method.
ICS-5000 (2011) 2 Models ICS-2000 (2004)
QuikChem 8500 (2010) QuikChem 8000 (1996) replaced in 2010
Forma Fury Model #8887 (1982) replaced in 2007 Thermo Forma Fury Model #8891
MDL’s
• Cl- 0.005 ppm
• NO3- 0.004 ppm
• SO42- 0.003 ppm
0
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
Cl SO4 NO3
am
ou
nt
of
an
aly
te d
ete
cte
d (
pp
m)
analyte
DI Water Samples Analyzed Using the ASAP Autosampler
CAL Staff (1982) replaced in 2010
CAL Staff (2011)
Related Documents
