Desethyl atrazine

Figure 1. Direct flow infection TSP PI mass spectra of (1) desisopropyl atrazine, (2) desethyl atrazine and (3) atrazine. Carrier stream acetonitrile-water (50 50) + 0.05 M ammonium...

Technology isoproturon, simazine, aldrin (HHDN), terbuthylazine, lindane (gamma-HCH), chlortoluron, atrazine, desethyl-atrazine (GC-FID and HPLC-UV) 10 pi (HPLC-UV)... 

Desethyl atrazine 6-Chioro-A7isopropyi-1,3,6-triazine-2,4-diamine CsHioCINs 6190-66-4 187.630 cry 136 ... 

Knopp and co-workers have developed a rapid and efficient method for the selective extraction of r-triazine herbicides in environmental samples using an immunosorbent of monoclonal antiatrazine antibodies, which were encapsulated in a sol-gel glass matrix. The method allows for the determination of the herbicides in linear ranges up to 1.5 pgL with correlation coefficients higher than 0.99 and relative standard deviations between 4% and 7% ( = 5). The LCDs for 50 ml water samples were in the range 0.02 pgP (atrazine, propazine) to 0.1 pgl (desethyl atrazine) <2002EST3372>. 

Surface Water. Desethyl- and desisopropylatrazine were degradation products of atrazine identified in the Mississippi River and its tributaries (Pereira and Rostad, 1990). Under laboratory conditions, atrazine in distilled water and river water was completely degraded after 21.3 and 7.3 h, respectively (Mansour et al., 1989). 

With respect to extraction of atrazine herbicides and metabolites, the choice between Oasis HLB and LiChrolut EN cartridges proved to be in favor of LiChrolut EN [329] as well. As has been found. Oasis HLB does not retain the most polar metabolite, desisopropyl-2-hydroxyatrazine (DIHA), at all, and recovers only 10 and 18% desethyldesisopropylatrazine (DEDIA) and desethyl-2-hydroxyatrazine (DEHA), respectively. On the contrary, under the same conditions, LiChrolut EN exhibits 69% recovery for DEDIA and >90% recoveries for DEHA and DIHA. 

---