Analytical method development for the determination of synthetic pyrethroid insecticides in soil by gas chromatography-mass spectrometry operated in negative-ion chemical-ionization mode

Yasin, Moh.; Baugh, P. J.; Bonwick, Graham; Davies, D. Huw; Hancock, Peter; Leinoudi, M.

doi:10.1016/s0021-9673(96)00310-x

Cited by 46 publications

(23 citation statements)

References 9 publications

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“…In comparison, previous investigators reported higher average ratios for sediments, e.g., 2.63 AE 0.92 [28], 3.26 AE 1.33 [29], and 2.64 [30]. The average cis-to trans-permethrin ratio for sediments in the present study was 1.67 AE 0.19 (June 2008), and 1.89 AE 0.23 (Oct. 2008).…”

Section: Pyrethroid Concentrationscontrasting

confidence: 79%

Analysis, occurrence, and toxic potential of pyrethroids, and fipronil in sediments from an urban estuary

Lao

Tsukada

Greenstein

et al. 2010

Enviro Toxic and Chemistry

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Eight pyrethroids and fipronil and its three major degradates were analyzed in urban estuarine sediments that exhibited a range of toxic effects to an amphipod test species. Sediments from Ballona Creek, an urban estuary in Southern California (USA), collected during three dry season events were analyzed by gas chromatography with electron capture and negative chemical ionization mass spectrometric detection (GC-ECD and GC-NCI-MS). The two detection methods were in agreement for intermediate levels of pyrethroid contamination (10-50 ng/g dry wt) but deviated for both low and high concentrations (< 5 and > 50 ng/g). Sediments contained total pyrethroids as high as 473 ng/g with permethrin, bifenthrin, and cypermethrin as the most abundant compounds. In contrast, fipronil and its desulfinyl, sulfide, and sulfone degradates were detected at much lower levels (

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Section: Pyrethroid Concentrationscontrasting

confidence: 79%

Analysis, occurrence, and toxic potential of pyrethroids, and fipronil in sediments from an urban estuary

Lao

Tsukada

Greenstein

et al. 2010

Enviro Toxic and Chemistry

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“…The research groups of Smith et al [1] and Yasin et al [2] focused on the determination of pyrethroids in water and soil by a GC -MS technique. Both research groups treated soil samples by repeated ultrasonic extraction to release analytes from the matrix.…”

Section: Introductionmentioning

confidence: 99%

Method of analysis of a selected group of pyrethroids in soil samples using off-line flow-through extraction and on-column direct large-volume injection in reversed phase high performance liquid chromatography

Chalányová

Paulechová

Hutta³

2006

J. Sep. Sci.

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An analytical method using flow-through extraction of a soil sample filled in a short HPLC column with methanol or methanol-water mixtures and large-volume injection in RP-HPLC has been developed for the simultaneous determination of residues of three pyrethroids--kadethrin, cypermethrin, and permethrin--from soil samples. The developed RP-HPLC method enables separation of four diastereoisomers of cypermethrin into three peaks and resolution of two diastereoisomers of permethrin. The UV photometric detection limits of direct on-column large-volume injection of 1.00 mL of extract were 30 ng/mL of kadethrin, 37 ng/mL of total content of cypermethrin, and 65 ng/mL of trans-permethrin, which corresponds to a pyrethroid soil content of around 0.3 mg/kg. Effects of extractant flow rate and optimal extractant volume on the percentage recovery of pyrethroids from Slovak soil samples were studied. Recovery studies were performed at 0.5- 5.0 microg/g fortification level of kadethrin and 1.0-2.5 microg/g fortification level of cypermethrin and permethrin in a soil sample. Recoveries ranged from 83 to 90% for kadethrin, from 87 to 94% for total cypermethrin, and from 85 to 98% for trans-permethrin. This work comprises a basic study aimed at elaboration of an RP-HPLC method of direct analysis of pyrethroids in a soil matrix at low concentration levels achieved by a "solid sample injection" in HPLC--on-line interfacing of analyte extraction, extract clean-up, and analysis.

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“…To our knowledge, various components such as lipids are needed to be eliminated so as to permit a more definitive identification of pesticide residues and to minimize interfering effects on the gas chromatography (GC). To this end, various column chromatography using Florisil, 5,6) silica gel 7) and gel permeation 8) were popularly used in clearing procedure nowadays. However, due to the complexity in the matrixes of TCM, a better procedure may be desirable.…”

Section: Introductionmentioning

confidence: 99%

Multi-residue Analysis of 18 Organochlorine Pesticides in 10 Traditional Chinese Medicines by Gas Chromatography (GC)

Sun

Hao

Xue

et al. 2007

JOURNAL OF HEALTH SCIENCE

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A rapid and simple method for the simultaneous analysis of 18 pesticides (α-(C 6 H 6 Cl 6 )-Benzene hexachloride, β-BHC, γ-BHC, δ-BHC, heptachlor, heptachlor epoxide, tecnazene, pentachloronitrobenzene (PCNB), hexachlorobenzene, aldrin, methyl pentachlorophenyl sulphide (MPCPS), α-endosulfan, trans-chlorodane, cis-chlorodane, p,p -(C 14 H 8 Cl 4 )-Dichlorodiphenyl dichloroethylene, o,p -(C 14 H 9 Cl 5 )-Dichlorodiphenyl trichloroethane, p,p -(C 14 H 10 Cl 4 )-Dichlorodiphenyl dichloeoethane, p,p -DDT) by gas chromatography (GC) in 10 Traditional Chinese Medicines (TCMs) has been developed. The limit of detection was found to be 1.2 × 10 −13 to 9.0 × 10 −13 g with the recoveries ranging from 72.9 to 114.5% and Relative Standard Deviation being less than 17.5%. In addition, the assay was applied to monitor the residues in 10 TCMs, amongst which at least one of the above pesticides were found in 67 samples. The results showed that α-BHC was the most frequently detected with a presence of 44.6% in the tested samples, whilst heptachlor epoxide, trans-chlorodane, cischlorodane and p,p -DDD were not detected at all. Nonetheless, none of pesticides in all samples appeared to exceed the maximum residue limits (MRLs) seen in the Chinese regulations.

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Analytical method development for the determination of synthetic pyrethroid insecticides in soil by gas chromatography-mass spectrometry operated in negative-ion chemical-ionization mode

Cited by 46 publications

References 9 publications

Analysis, occurrence, and toxic potential of pyrethroids, and fipronil in sediments from an urban estuary

Analysis, occurrence, and toxic potential of pyrethroids, and fipronil in sediments from an urban estuary

Method of analysis of a selected group of pyrethroids in soil samples using off-line flow-through extraction and on-column direct large-volume injection in reversed phase high performance liquid chromatography

Multi-residue Analysis of 18 Organochlorine Pesticides in 10 Traditional Chinese Medicines by Gas Chromatography (GC)

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