Environmental Security Assessment and Management of Obsolete Pesticides in Southeast Europe by Lubomir I. Simeonov Fliur Z. Macaev & Biana G. Simeonova

Author:Lubomir I. Simeonov, Fliur Z. Macaev & Biana G. Simeonova
Language: eng
Format: epub
Publisher: Springer Netherlands, Dordrecht

Compound

Bond Elut C18 LRC (C18, 200 mg/10 mL)

Oasis HLB (hydrophilic–lipophilic balance, 200 mg/6 mL)

Recovery, %

RSD, %

Recovery, %

RSD, %

Acetochlor

52

5.9

92

6.2

Alachlor

55

6.1

93

7.3

Chlorfenvinphos

78

7.7

89

9.2

Chlorpyrifos

82

13.8

95

6.6

Diuron

61

12.1

112

8.0

Isoproturon

58

10.4

86

12.7

Pendimethalin

42

15.6

89

10.7

Trifluralin

53

9.8

94

8.9

After the selection of the cartridge type the sample volume was optimized. The tested volumes were: 250, 500 and 1,000 mL. Ultrapure water was spiked with working standard solution to produce concentration of 100 ng/mL for each pesticide in the final extract. Extracts were prepared in the same way as in the previous experiment. The developed method was validated by performing recovery studies using both ground water and surface water samples spiked with standard solution to produce concentrations of 30 ng/mL in the final extracts. The developed and optimized method was finally applied to the analysis of ground and surface water samples.

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