Journal of Chemistry / 2015 / Article / Tab 1

Research Article

Monitoring Pesticide Residues in Surface and Ground Water in Hungary: Surveys in 1990–2015

Table 1

Target compounds, their chromatographic retention time, and characteristic molecule ions for MS identification and concentrations found in surface water samples.

Pesticide active ingredient/metaboliteRetention times (min)Quantitation ion
(other ions) ()
Concentration range as diffuse contaminant (ng/L)Comment

GC analysis
Neutral and basic substances
Propachlor10.075120 (176, 212)
Trifluralin10.817306 (264, 290)800–10000Soil contaminant as well
Phorate11.038121 (75, 231, 260)
Simazine11.490201 (173, 186)
Atrazine11.651200 (215, 216)500–15000>15600 ng/L (in 2002) as point source; soil contaminant as well
Lindane11.888181 (183, 217)5–15Soil contaminant
Terbuthylazine11.910214 (173, 229)
Diazinon12.183179 + 137 (152)10–900Soil contaminant as well
Tefluthrin12.301177 (197, 141)Soil contaminant
Pirimicarb12.690166 (239, 72)
DDMS12.925235 (237, 199)
Dimethenamid13.000154 (230, 203)traces
Dimethachlor13.007134 (197, 210)
Metribuzin13.070198 (57, 199)100–1000
Acetochlor13.139224 (223, 174)20–630046000 ng/L (in 2002) and 3900000 ng/L (in 2008) as point source; soil contaminant as well
Heptachlor13.305272 (274, 100)
Alachlor13.345188 + 238 (160)1–10
Prometryn13.364241 (242, 184)100–10000>6100 ng/L (in 2003)
Dimethirimol11.420166 (209)traces>100 ng/L in a single instance (in 2010)
Propisochlor 13.451224, 162 (223)10–100
Terbutryn13.624185 (242, 226)10–1000>83800 ng/L (in 2003)
Ethofumesate13.761207 + 161 (286)10–30
Malathion13.871173 (127, 125)
Aldrin-R13.990293 (66, 293, 65)
Metolachlor14.049162 (238, 240)1–56000Soil contaminant as well
Chlorpyrifos14.070314 (316, 258)Soil contaminant
Triadimenol14.900168 (128, 71)traces
Penconazole14.700248 (159, 251)
Pendimethalin14.710252 (282, 253)
Heptachlor Epoxide14.775353 (355, 351)
Endosulfan15.490195 (339, 160)
Hexaconazole15.700214 (111, 97)
DDE15.865318 (208, 282)<3Soil contaminant
DDD16.907235 (237, 207)Soil contaminant
Dieldrin16.05979 (79, 81, 277)
Endrin16.617279 (243, 245)
DDT18.059235 (237, 165)Soil contaminant
Iprodione19.508314 (315, 316)
Acidic substances
MCP tBDMS7.524199 (201, 125)
DCP tBDMS7.957219 (221, 93)
Mecoprop tBDMS9.208225 (271, 227)10–15
MCPA tBDMS9.453257 + 229 (211)5–300
Dichlorprop tBDMS9.584245 (247, 291)3–200
2,4-D tBDMS9.882251 + 233 (279, 277, 281)10–1000
MCPB tBDMS10.226281 (325, 253)10–20
2,4,5-T tBDMS10.526285 + 311 (267, 75)
2,4,5-TP tBDMS10.648201 + 199 (202)
2,4-DB tBDMS10.910219 (201)

HPLC analysis
Thiamethoxam2.42292 (211, 246)4–3010–41 μg/L measured from temporary shallow water bodies
Clothianidin3.38250 (132, 168, 169)17–40

ELISA
Glyphosate500–1000

Chlorophenoxy acids and the corresponding phenol metabolites have been determined by a parallel chromatographic method as t-butyldimethylsilyl esters or ethers (tBDMS).

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