Parents and Degradation Products of Analysis: OGRL LCEA
Organic Geochemistry Research Lab
(OGRL)
Science Center Objects
Triazines and phenylureas are commonly used herbicides for controlling weeds in row crops. These herbicides and their degradation products have been found in samples collected from surface water, groundwater, and precipitation throughout the United States. Atrazine until recently was the most widely applied herbicide in the U.S. and is still a widely applied preplanting corn herbicide.
LCEA: Triazine and Phenylurea Method
Sample collection requirements: 3- 125mL 4oz amber glass bottles with Telfon lined caps per sample.
- Instrumentation: Liquid Chromatography/Tandem Mass Spectrometry
- Data results uploaded to QWDX upon request
| Compound Name | Reporting Limit | Parameter Code | Method Code | USGS Method Report | CAS # |
|---|---|---|---|---|---|
| Triazines | |||||
| Atrazine | 0.020 µg/L | 39632 | LCM44 | OF-02-436 | 1912249 |
| Bromacil | 0.020 µg/L | 4029 | LCM05 | N/A | 314409 |
| Cyanazine | 0.020 µg/L | 4041 | LCM44 | OF-02-436 | 21725462 |
| *Cyanazine acid (CAC) | 0.020 µg/L | 61745 | LCM44 | OF-02-436 | -- |
| *Cyanazine amide (CAM) | 0.020 µg/L | 61709 | LCM44 | OF-02-436 | 36576-42-8 |
| *Deethylatrazine (DEA) | 0.020 µg/L | 4040 | LCM44 | OF-02-436 | 6190-65-4 |
| *Deethylcyanazine (DEC) | 0.20 µg/L | 61749 | LCM44 | OF-02-436 | -- |
| *Deethylcyanazine acid (DCAC) | 0.020 µg/L | 61750 | LCM44 | OF-02-436 | -- |
| *Deethylcyanazine amide (DCAM) | 0.020 µg/L | 61751 | LCM44 | OF-02-436 | -- |
| *Deethyldeisopropylatrazine/Didealkyatrazine (DDA) | 0.020 µg/L | 4039 | LCM43 | OF-02-436 | 3397-62-4 |
| *Deethylhydroxyatrazine (DEHA) | 0.020 µg/L | 62676 | LCM44 | OF-02-436 | -- |
| *Deisopropylhydroxyatrazine (DIHA) | 0.020 µg/L | 62678 | LCM44 | OF-02-436 | 7313-54-4 |
| *Deisopropylatrazine (DIA) | 0.020 µg/L | 4038 | LCM44 | OF-02-436 | 1007-28-9 |
| *Hydroxyatrazine (HA) | 0.020 µg/L | 50355 | LCM44 | OF-02-436 | 2163-68-0 |
| *Hydroxysimazine | 0.020 µg/L | 63154 | LCM05 | N/A | 11/3/2599 |
| Prometon | 0.020 µg/L | 4037 | LCM05 | N/A | 1610180 |
| Propazine | 0.020 µg/L | 38535 | LCM44 | OF-02-436 | 139402 |
| Simazine | 0.020 µg/L | 4035 | LCM44 | OF-02-436 | 122349 |
| Phenylureas | |||||
| Diuron | 0.20 µg/L | 50374 | LCM44 | OF-02-436 | 330541 |
| Fluometuron | 0.20 µg/L | 38811 | LCM44 | OF-02-436 | 2164172 |
| *DMFM (demethylfluometuron) | 0.20 µg/L | 61755 | LCM44 | OF-02-436 | -- |
| Linuron | 0.20 µg/L | 38478 | LCM44 | OF-02-436 | 330552 |
| *degradation product |
Comparison of fate and transport of isoxaflutole to atrazine and metolachlor in 10 Iowa rivers
Isoxaflutole (IXF), a newer low application rate herbicide, was introduced for weed control in corn (Zea mays) to use as an alternative to widely applied herbicides such as atrazine. The transport of IXF in streamwater has not been well-studied. The fate and transport of IXF and two of its degradation products was studied in 10 Iowa rivers during...
Meyer, Michael T.; Scribner, Elisabeth A.; Kalkhoff, Stephen J.
Summary of significant results from studies of triazine herbicides and their degradation products in surface water, ground water, and precipitation in the midwestern United States during the 1990s
Nonpoint-source contamination of water resources from triazine herbicides has been a major water-quality issue during the 1990s in the United States. To address this issue, studies of surface water, ground water, and precipitation have been carried out by the U.S. Geological Survey in the Midwestern United States. Reconnaissance studies of 147...
Scribner, Elisabeth A.; Thurman, E.M.; Goolsby, Donald A.; Meyer, Michael T.; Battaglin, William A.; Kolpin, Dana W. Differentiating nonpoint sources of deisopropylatrazine in surface water using discrimination diagrams
Pesticide degradates account for a significant portion of the pesticide load in surface water. Because pesticides with similar structures may degrade to the same degradate, it is important to distinguish between different sources of parent compounds that have different regulatory and environmental implications. A discrimination diagram, which is a...
Meyer, M.T.; Thurman, E.M.; Goolsby, D.A. Evaluation of microtiter-plate enzyme-linked immunosorbent assay for the analysis of triazine and chloroacetanilide herbicides in rainfall
Triazine and chloroacetanilide concentrations in rainfall samples collected from a 23-state region of the United States were analyzed with microtiter-plate enzyme-linked immunosorbent assay (ELISA). Thirty-six percent of rainfall samples (2072 out of 5691) were confirmed using gas chro matography/mass spectrometry (GC/MS) to evaluate the operating...
Pomes, M.L.; Thurman, E.M.; Aga, D.S.; Goolsby, D.A.
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Information on sending and processing of samples sent to the Organic Geochemistry Research Lab at Kansas Water Science Center.