e-journal

Analytical method for the determination of meptyldinocap as the 2,4-dinitro-octylphenol metabolite in cucumber and soil using LC-MS/MS and a study of the residues in a Chinese cucumber field ecosystem

---

BACKGROUND:Meptyldinocap (2,4-DNOPC) is a novel powdery mildew (Erysiphe necator) fungicide which showsprotectant and post-infective activities. However, there is no reliable validated LC-MS/MS method for measuring trace levels of meptyldinocap in cucumber. A method for the determination of 2,4-DNOPC using LC-MS/MS in cucumber and soil was developed. Additionally, the mode of degradation and the residue levels in cucumbers and soils were investigated.
RESULTS:Recoveriesofmeptyldinocapfromcucumberandsoilsampleswerefoundtobe81.4–95.1%.Thelimitsofquantification were found to be 0.01mgkg−1 in cucumber and soil. The half-lives of metpyldinocap in cucumbers and soils were in the ranges of 1.6 to 2.2 days and 3.1 to 4.4 days. The harvest residue levels of meptyldinocap in cucumbers and soils were in the ranges
of below 0.01mgkg−1 to 0.92mgkg−1, and below 0.01mgkg−1 to 0.53mgkg−1. 5 days after application; the harvest residue levels of meptyldinocap in cucumbers in all treatments were below 0.1mgkg−1.
CONCLUSION: Compared with the MRL for meptyldinocap in cucumber (0.1mgkg−1), set by the EU, it is suggested that there should be a pre-harvest interval of 5 days at the recommended rat

Keywords: meptyldinocap; cucumber; soil; residues; LC-MS/MS

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Pest Management Science

No. Panggil

-

Penerbit

: Society of Chemical Industry, www.soci.org., 2014

Deskripsi Fisik

Pest Manag Sci 2014; 70: 97–102

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

PERTANIAN.

Info Detail Spesifik

-

Pernyataan Tanggungjawab

Agus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar