Simultaneous determination of 13 synthetic pyrethroids and their metabolite, 3-phenoxybenzoic acid, in tea by gas chromatography

Tsumura, Yukari; Wada, Ichiro; Fujiwara, Yasushi; Nakamura, Yumiko; Tonogai, Yasuhide; Ito, Yoshio

doi:10.1021/jf00048a052

Cited by 33 publications

(14 citation statements)

References 7 publications

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“…They are regarded as safe (in contrary to organochlorines and organophosphates) and are effective in low doses (Hodgson, 2010). Parent compounds are monitored in food and have been detected in fruit, vegetables and tea (Mortimer and Shields, 1995;Teagasc, 2005;Tsumura et al, 1994). Their increased presence in the environment has resulted in exposure of both wildlife (Alonso et al, 2012) and humans (Le Grand et al, 2012;Tao et al, 2013;Ueyama et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Endocrine disruptor activity of multiple environmental food chain contaminants

Wielogórska

Elliott

Danaher³

et al. 2015

Toxicology in Vitro

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Section: Introductionmentioning

confidence: 99%

Endocrine disruptor activity of multiple environmental food chain contaminants

Wielogórska

Elliott

Danaher³

et al. 2015

Toxicology in Vitro

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“…Chromatographic methods are the most suitable for residue analysis [3][4][5][6] in GC using long, narrow-bore capillary columns equipped with selective and sensitive detection methods such as electrophilic conductivity detector (ECD) [7,8], nitrogen-phosphorus detector (NPD) [9,10] and flame photometric detector (FPD) [11,12] according to different classes of pesticides. An emerging strategy in multiresidue methodology is the search for universal detection systems, e. g., in GC coupled with mass-selective detectors [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of pesticide residues on cucumber, tomatoes and strawberries in Gaza Governorates, Palestine

Safi¹,

Abou-Foul

El‐Nahhal

et al. 2002

Nahrung

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Three techniques of gas chromatography (GC) either with flame photometric-detector (FPD), electron capture detector (ECD), or with mass-spectrometry (MS) were applied for identification and quantification of pesticide residues on 45 samples of cucumber, tomatoes, and strawberries in fifteen locations in Gaza Governorates. GC-FPD analysis showed the presence of four different organo-phosphorus (OP) pesticides, their levels were very low and below maximum residue limits (MRL's). GC-ECD detected ten different pesticides at levels below the MRL's. Using the GC-MS technique, alpha and beta-endosulfan, chlorpyrifos, carbofuran, chlorfluazuron, triadimenol I and II, penconazole, coptafolmetabolite, pyrimethanil and iprodione were detected and confirmed on some samples of cucumber, tomatoes and strawberries. All GC-MS pesticide residues detected on tomato were below the MRL's except chlorfluazuron while on strawberry were below the MRL's except penconazole, chlorfluazuron and pyrimethanil, but on cucumber were slightly higher than the MRL's except alpha and beta-endosulfan. Also, statistical analysis of pesticide residues in all samples showed that most of the detected residues mean were significantly lower than the MRL's (p < 0.05). Generally, tomatoes showed the least number and level of pesticide residues by all the GC-techniques. On the other hand, strawberries showed greater number and levels of pesticide residues, particularly by the GC-MS technique. These results indicate that the protective period to elapse before harvesting should be increased especially on strawberry. The results also can help in risk assessment of consumers exposure to the expected pesticide residues.

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“…Compared with other methods employed for pesticide residue determination in honey (Drescher and Fiedler 1983 ;Taccheo et al 1990) and multiresidue methods (Specht and Tillkes 1980 ;Nakamura et al 1993 ;Pang et al 1994 ;Tsumura et al 1994), this analytical method excludes the costly adsorbents used in the clean-up step, is less time consuming and is suitable to perform as a prior screening of Fluvalinate residues during monitoring studies of honey samples. a GC-ECD, gas chromatography-electron capture detector ; GC-MS, gas chromatographyÈmass spectrometry ; HPLC, high-performance liquid chromatography.…”

Section: Discussionmentioning

confidence: 99%

A rapid and low cost monitoring method for fluvalinate determination in honey

Waliszewski

Pardío

Waliszewski

et al. 1998

J. Sci. Food Agric.

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A simple analytical method for determining Fluvalinate residues in honey is described. Analyses were carried out by gas chromatography–electron capture detector (ECD), using a borosilicate glass column packed with 3% SP‐2100. Fluvalinate residues were extracted from honey samples with n‐hexane and acetic acid. Mean recoveries ranged from 98·1±6·9 to 101·9±7·6% with SD<10 after standard addition of 20, 50 and 500 μg. No interferences of other pesticides were detected. ECD responses were linear within the range studied of 10–50 pg of Fluvalinate with a coefficient of determination 0·994, and a detection limit of 3 mg kg−1 was established. The use of a packed column allowed the exclusion of an expensive clean‐up step. This fast, low‐cost analytical method is adequate for monitoring studies of honey samples. © 1998 SCI.

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Simultaneous determination of 13 synthetic pyrethroids and their metabolite, 3-phenoxybenzoic acid, in tea by gas chromatography

Cited by 33 publications

References 7 publications

Endocrine disruptor activity of multiple environmental food chain contaminants

Endocrine disruptor activity of multiple environmental food chain contaminants

Monitoring of pesticide residues on cucumber, tomatoes and strawberries in Gaza Governorates, Palestine

A rapid and low cost monitoring method for fluvalinate determination in honey

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