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earth GRL

Organic Geochemistry Research Laboratory
LCEA: Triazine and Phenylurea Method


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.


  • 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 04029 LCM05 N/A 314409
Cyanazine 0.020 μg/L 04041 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 04040 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 04039 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 04038 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 2599-11-3
Prometon 0.020 μg/L 04037 LCM05 N/A 1610180
Propazine 0.020 μg/L 38535 LCM44 OF-02-436 139402
Simazine 0.020 μg/L 04035 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

USGS Method Approved Report

Lee, E.A., Strahan, A.P., Thurman, E.M., 2002, Methods of analysis by the U.S. Geological Survey Organic Geochemistry Research Group-Determination of triazine and phenylurea herbicides and their degradation products in water using solid-phase extraction and liquid chromatography/mass spectrometry, U.S. Geological Survey Open-File Report 02-436, pp. 19.


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