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Chlorpyriphos methyl

The major difficulty in analyzing OPPs in fatty samples has to do with the wide polarity range for both pesticides and lipids present in the matrix. Normal-phase HPLC is an adequate technique for cleaning up this type of sample using silica gel and modifiers with different polarity. In fact, an automated sample-cleanup system based on normal-phase HPLC using a silica gel column has been reported efficiently to clean up and fractionate chlorpyriphos, chlorpyriphos methyl, and their metabolites in molluscs. The system presents several advantages The procedure is fully automated, from the injection of the extract to the collection of fractions, which are injected directly into the GC system, and a diode array detector (DAD) allows online monitoring of the elution of lipids (68). [Pg.730]

Chlorpyriphos-methyl, fenitrothion, fenchlor-fos, parathion-ethyl... [Pg.744]

Chlorfenvinphos, chlorpyriphos-methyl, endo-sulfan sulfate, tetradifon, cr-endosulfan, /3-endosulfan, chlorpyriphos-ethyl, carbo-phenothion... [Pg.744]

Chlorpyriphos methyl, diazinon, disulfoton, fenamiphos, fenthion, isofenphos, malathion, methidathion, pyridafenthion, temephos... [Pg.744]

Fig. 3 HPLC chromatogram of spiked apple extract. Peaks (1) folpet, (2) dimehoate and benomyl, (3) aldicarb, (4) bendiocarb and pirimicarb, (5) carbaryl, (6) tolylfluanid and thiram, (7) propham, (8) cap-tan and azinphos methyl, (9) chlorpropham, (10) iprodione, (11) procymidone, (12) vinclozolyne, (13) parathyon ethyl, (14) endosulfan sulfate, (15) toclophos methyl and chlorpyriphos methyl, (16) dico-fol, (17) /3-endosulfan, (18) tetradifon, (19) a-endosulfan, (20) chlorpyriphos and dieldrin, (21) />,p -DDT, (22) p,p -DDT. 0.1 AUF concentrations 10-20 ng/20/tl injected volume 20pi. (From Ref. 57.)... Fig. 3 HPLC chromatogram of spiked apple extract. Peaks (1) folpet, (2) dimehoate and benomyl, (3) aldicarb, (4) bendiocarb and pirimicarb, (5) carbaryl, (6) tolylfluanid and thiram, (7) propham, (8) cap-tan and azinphos methyl, (9) chlorpropham, (10) iprodione, (11) procymidone, (12) vinclozolyne, (13) parathyon ethyl, (14) endosulfan sulfate, (15) toclophos methyl and chlorpyriphos methyl, (16) dico-fol, (17) /3-endosulfan, (18) tetradifon, (19) a-endosulfan, (20) chlorpyriphos and dieldrin, (21) />,p -DDT, (22) p,p -DDT. 0.1 AUF concentrations 10-20 ng/20/tl injected volume 20pi. (From Ref. 57.)...
Fig. 4 Chromatograms of a blank apple sample (top) and the same apple sample spiked with 27 of the 31 organophosphorus at the following concentration levels (bottom). 1 = paraoxon methyl 500 2 = malaoxon 6400 3 = paraoxon ethyl 800 4 = metidathion 500 5 = azinphos-methyl 200 6 = phosmet 200 7 = parathion methyl 800 8 = malathion 2000 9 = triazophos 200 10 = fenitrothion 800 11= azinphos ethyl 200 12 = chlorfenvinphos 200 13 = quinalphos 200 14 = parathion-ethyl 400 16 = ethrimphos 1000 17 = diazinon 800 18 = coumaphos 800 19 = fonophos 200 21 = phoxim 400 23 = chlorpyriphos-methyl 500 24 = disulfoton 2000 26 = isofenphos 500 27 = fenchlorphos 500 28 = temephos 400 29 = chlorpyriphos ethyl 200 30 = pyrimiphos-ethyl 200 31 = carbophenothion-ethyl 400. The chromatography was carried out with the Altima column using CH3CN/H20 as mobile phase in gradient elution CHjCN from 28 to 39% in 20 min, and then from 39 to 88% in 40 min. (From Ref. 59.)... Fig. 4 Chromatograms of a blank apple sample (top) and the same apple sample spiked with 27 of the 31 organophosphorus at the following concentration levels (bottom). 1 = paraoxon methyl 500 2 = malaoxon 6400 3 = paraoxon ethyl 800 4 = metidathion 500 5 = azinphos-methyl 200 6 = phosmet 200 7 = parathion methyl 800 8 = malathion 2000 9 = triazophos 200 10 = fenitrothion 800 11= azinphos ethyl 200 12 = chlorfenvinphos 200 13 = quinalphos 200 14 = parathion-ethyl 400 16 = ethrimphos 1000 17 = diazinon 800 18 = coumaphos 800 19 = fonophos 200 21 = phoxim 400 23 = chlorpyriphos-methyl 500 24 = disulfoton 2000 26 = isofenphos 500 27 = fenchlorphos 500 28 = temephos 400 29 = chlorpyriphos ethyl 200 30 = pyrimiphos-ethyl 200 31 = carbophenothion-ethyl 400. The chromatography was carried out with the Altima column using CH3CN/H20 as mobile phase in gradient elution CHjCN from 28 to 39% in 20 min, and then from 39 to 88% in 40 min. (From Ref. 59.)...
Fig. 5 SIM chromatograms obtained in NI discharge-on TSP/LC-MS of mixed reference standards (5 ppm) (top) and of a spiked (1 ppm) lean beef muscle sample (bottom). Peak identities (1) p-nitrofenol, (2) 3-chloro-4-methyl-7-hydroxycoumarin, (3) 3-methy-4-(methylthio)phenol, (4) paraoxon, (5) couma-phos oxon (6) famphur (7) 2.4,5-trichlorofenol, (8) ronnel oxon, (9) stirofos, (10) parathion, (11) cou-maphos, (12) chlorpyriphos-methyl, (13) ronnel, (14) chlcpyriphos. (From Ref. 75.)... Fig. 5 SIM chromatograms obtained in NI discharge-on TSP/LC-MS of mixed reference standards (5 ppm) (top) and of a spiked (1 ppm) lean beef muscle sample (bottom). Peak identities (1) p-nitrofenol, (2) 3-chloro-4-methyl-7-hydroxycoumarin, (3) 3-methy-4-(methylthio)phenol, (4) paraoxon, (5) couma-phos oxon (6) famphur (7) 2.4,5-trichlorofenol, (8) ronnel oxon, (9) stirofos, (10) parathion, (11) cou-maphos, (12) chlorpyriphos-methyl, (13) ronnel, (14) chlcpyriphos. (From Ref. 75.)...
Thiophosphates (phosphorothioates) [R2 = N,S, or 0. chlorpyriphos-methyl, diazinon, fenitrothion, fenthion, omethoate, oxydemeton-methyl, parathion, vamidothion... [Pg.843]

Some are transient leachers (chlorpyriphos-methyl, diazinon, parathion-methyl). Others are potential leachers (trichlorfon). [Pg.846]

Phorate, dimethoate, fonofos, chlorpyriphos-methyl, parathion-methyl, fenitrothion, malathion, chlorpyriphos, fenthion, chlorfenvinphos, methidathion, fenamiphos, ethion, phosalone, azinphos-methyE... [Pg.851]

FIGURE 23.2 Chromatogram obtained after manual LLME with 1 ml of MTBE of 5 ml of groundwater fortified at 0.1 /rg/l level and injection of 200 /rl of sample extract in GC-FPD. (1) Phorate, (2) dimethoate, (3) fonofos, (4) chlorpyriphos-methyl, (5) parathion-methyl, (6) fenitrothion, (7) malathion, (8) chlorpyriphos, (9) fenthion, (10) chlorfenvinphos, (11) methidathion, (12) fenamiphos, (13) ethion, (14) phosalone, (15) azinphos-methyl. From Ref. [19]. [Pg.858]

Dimethoate, fenitrothion, fenthion, diazinon, dichlorvos, malathion, parathion-methyl, parathion, methidathion, EPN, disulfoton, ethion, chlorpyriphos-methyl, chlorpyriphos, propaphos, pyrida-phenthion, edifenphos, dimethyl-vinphos, isoxathion, phenthoate Methamidophos, acephate, omethoate, monocrotophos, oxydemeton-methyl, vamidothion Mevinphos, dichlorvos, azinphos-methyl, azinphos-ethyl, parathion-methyl, parathion-ethyl, malathion, fenitrothion, chlorvinphos, fenthion, diazinon Paraoxon, methyl-parathion, ethyl-parathion, fenitrothion... [Pg.877]

Chlorpyrifos the main cross-reactants are fenchlorphos, diazinon and chlorpyriphos-methyl... [Pg.879]

Organophosphorus pesticides Acephate , Azinphos-methyl , Chlorpyrifos , Chlorpyriphos-methyl , Diazinon , Dichlorvos (DDVP), Dicrotophos , Dimethoate , Disulfoton , Ethoprop , Eenamiphos , Eenitrothion , Fenthion , Fosthiazate , Malathion , Methamidophos , Methidathion , Methyl-parathion , Mevinphos , Naled , Oxydemeton-methyl , Para-thion , Phorate , Phosalone , Phosmet , Pirimiphos-methyl , Profenofos , Terbufos , Tetrachlorvinphos , Trichlorfon . [Pg.934]

Organophosphorus compounds Azinphos-methyl, diazinone, dichlorvos, ethione, etrimphos, fenitrothione, fomophos, phosalone, chlorfenvinphos, chlorpyriphos, chlorpyriphos-methyl, quinalphos, malathione, mecarbam, methidathione, mevinphos, parathione-ethyl, parathione-methyl, pirimiphos-methyl, sulfotep, terbuphos, tetrachlorvinphos, tolclophos-methyl, triazophos... [Pg.1015]

See other pages where Chlorpyriphos methyl is mentioned: [Pg.1074]    [Pg.1074]    [Pg.1079]    [Pg.141]    [Pg.864]    [Pg.844]    [Pg.850]    [Pg.852]    [Pg.857]    [Pg.876]    [Pg.877]    [Pg.878]    [Pg.477]    [Pg.480]    [Pg.482]    [Pg.485]   
See also in sourсe #XX -- [ Pg.730 ]



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