| Staff chemists provide
chemical analyses for the Water Survey and the University of
Illinois in support of research activities. Measurements
include metals, nutrients, pesticides, sediments, and organic
compounds for projects on groundwater quality, watershed
monitoring, well contamination, atmospheric processes,
oxidative chemical processes, and lake quality. Staff consult
with other researchers on their analytical needs and the
development of quality assurance plans for laboratory data and
analytical procedures as needed.
The laboratory is managed by Daniel Webb, who
also oversees the Public
Service Laboratory. Water Survey researchers should
contact Dan to discuss their analytical needs and budgets
when writing proposals.
Analytical Methods:
1. Fluoride, Ion-Selective Electrode, Method 4500- F-
C, Standard Methods for the Examination of Water and
Wastewater, 18th Edition. 1992. Available from the
American Public Health Association, 1015 15th Street, N. W.,
Washington, D. C. 20036.
2. Total Solids Dried at 103-105EC,
Method 2540 B, Standard Methods for the Examination of
Water and Wastewater, 18th Edition. 1992. Available from
the American Public Health Association, 1015 15th Street, N.
W., Washington, D. C. 20036
3. Total Solids Dried at 180EC,
Method 2540 C, Standard Methods for the
Examination of Water and Wastewater, 18th
Edition. 1992. Available from the
American Public Health Association, 1015
15th Street, N. W., Washington, D. C.
20036.
4. Alkalinity, mg/L as CaCO3, Electrometric
Titration, Method USGS-1030-85, Techniques of Water
Resources, Investigation of the U Methods of Chemical
Analysis of Water and Wastes. US EPA, NERL-Cincinnati,
Cincinnati, Ohio, March, 1983 (EPA-600/4-79-020). ISGS,
Chapter A-1, Methods for the Determination of Inorganic
Substances in Water and Fluvial Sediments, Book 5, 3rd
Edition, 1989.
5. pH, Electrometric , US EPA Method 150.1, Methods
of Chemical Analysis of Water and Wastes. US EPA, NERL-Cincinnati,
Cincinnati, Ohio, March, 1983 (EPA-600/4-79-020).
6. Determination of Metals and Trace Elements in Water
and Wastes by Inductively Coupled Plasma-atomic Emission
Spectrometry, US EPA Method 200.7, Revision 4.4, Methods
for the Determination of Metals in the Environmental
Samples - Supplement I, EPA-600/R-94-111, May 1994.
7. Determination of Inorganic Anions by Ion
Chromatography, US EPA Method 300.0, Revision 2.1, Methods
for the Determination of Inorganic Substances in
Environmental Samples, EPA-600/R-93-100, August 1993.
8. Determination of Non_Volatile Organic Carbon,
Persulfate_UV Oxidation Method, US EPA Method 415.2, Methods
of Chemical Analysis of Water and Wastes. US EPA, NERL-Cincinnati,
Cincinnati, Ohio, March, 1983 (EPA-600/4-79-020).
9. Determination of Ammonia Nitrogen by Semi-Automated
Colorimetry, US EPA Method 350.1, Revision 2.0, Methods
for the Determination of Inorganic Substances in
Environmental Samples, EPA-600/R-93-100, August 1993.
10. Metals by
Electrothermal Atomic
Absorption Spectrometry,
Method 3113, Standard
Methods for the
Examination of Water and
Wastewater, 18th
Edition. 1992.
Available from the
American Public Health
Association, 1015 15th
Street, N. W.,
Washington, D. C. 20036.
11. Determination of Nitrogen- and
Phosphorous-Containing Pesticides in Water by Gas
Chromatography With a Nitrogen-Phosphorous Detector, US EPA
Method 507, Revision 2.0, Methods for the Determination
of Organic Compounds in Drinking Water,
EPA/600/4-88/039, as revised July 1991. Available
from US EPA ORD Publications, 26 West M. L. King Drive,
Cincinnati, OH 45268.
Analytes and Method Detection Limits (MDL's):
| Analyte |
MDL
|
units |
| Al,
aluminum |
0.025 |
mg/L |
| As,
arsenic (ICP) |
0.037 |
mg/L |
| As,
arsenic (GFAA) |
0.58 |
ug/L |
| B,
boron |
0.012 |
mg/L |
| Ba,
barium |
0.002 |
mg/L |
| Be,
beryllium |
0.002 |
mg/L |
| Ca,
calcium |
0.027 |
mg/L |
| Cd,
cadmium |
0.004 |
mg/L |
| Co,
cobolt |
0.006 |
mg/L |
| Cr,
chromium |
0.007 |
mg/L |
| Cu,
copper |
0.006 |
mg/L |
| Fe,
iron |
0.006 |
mg/L |
| K,
potassium |
1.36 |
mg/L |
| Li,
lithium |
0.005 |
mg/L |
| Mg,
magnesium |
0.016 |
mg/L |
| Mn,
manganese |
0.002 |
mg/L |
| Mo,
molybdenum |
0.009 |
mg/L |
| Na,
sodium |
0.209 |
mg/L |
| Ni,
nickel |
0.013 |
mg/L |
| P,
phosphorous |
0.099 |
mg/L |
| Pb,
lead (ICP) |
0.025 |
mg/L |
| Pb,
lead (GFAA) |
0.55 |
ug/L |
| S,
sulfur |
0.065 |
mg/L |
| Sb,
antimony |
0.048 |
mg/L |
| Se,
selenium |
0.038 |
mg/L |
| Si,
silicon |
0.021 |
mg/L |
| Sn,
tin |
0.014 |
mg/L |
| Sr,
strontium |
0.002 |
mg/L |
| Ti,
titanium |
0.002 |
mg/L |
| V,
vanadium |
0.013 |
mg/L |
| Zn,
zinc |
0.003 |
mg/L |
| alkalinity |
4 |
mg/L as CaCO3 |
| TDS,
total dissolved solids |
4 |
mg/L at 104 oC |
| TDS,
total dissolved solids |
4 |
mg/L at 180 oC |
| F,
fluoride |
0.07 |
mg/L |
| Cl,
chloride |
0.15 |
mg/L |
| NO3-N,
nitrate as nitrogen |
0.06 |
mg/L |
| SO4,
sulfate |
0.28 |
mg/L |
| pH |
|
pH units |
| atrazine |
0.16 |
ug/L |
| alachlor |
0.23 |
ug/L |
| simazine |
0.07 |
ug/L |
| prometon |
0.09 |
ug/L |
| metribuzin |
0.15 |
ug/L |
| metolachlor |
0.24 |
ug/L |
| butachlor |
0.29 |
ug/L |
| NVOC,
non-volatile organic carbon |
0.2 |
mg/L |
| NH3-N,
ammonia as nitrogen |
0.03 |
mg/L |
| o-PO4-P,
ortho-phosphate as phosphorous |
0.01 |
mg/L |
| NO2-N,
nitrite as nitrogen |
0.01 |
mg/L |
| TKN,
total Kjeldahl nitrogen |
0.13 |
mg/L |
| t-P,
total phosphorous |
0.04 |
mg/L |
|
