Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables.

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Abstract Text:

Tomomi Tanaka,Tomiyuki Hori,Takashi Asada,Kikuo Oikawa,Kuniaki Kawata,Tomomi Tanaka,Tomiyuki Hori,Takashi Asada,Kikuo Oikawa,Kuniaki Kawata,Tomomi Tanaka,Tomiyuki Hori,Takashi Asada,Kikuo Oikawa,Kuniaki Kawata,

A simple one-step extraction and cleanup using a pressurized liquid extraction method was developed for the gas chromatographic-mass spectrometric determination of pesticides in vegetables. The pressurized liquid extraction conditions were optimized and cleanup agents were evaluated. The investigated pesticides included six insecticides, chlorpyrifos methyl, pirimiphos-methyl, malathion, chlorpyrifos, O-ethyl O-4-nitrophenylphenyl phosphonothioate (EPN) and permethrins, a fungicide, isoprothiolane, and a herbicides, thiobencarb. The cleanup agent and a mixture of the vegetable and anhydrous sodium sulfate were separately packed in an extraction vessel. A transparent and colorless extract was obtained using graphitized carbon as the cleanup agent. The overall recoveries were 71-103% and the relative standard deviations ranged from 5.6 to 24%. The limit of detection values were 3-8mugkg(-1). This method was successfully applied to green leafy vegetables.

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Publishing Authors By Initials

T Tanaka,T Hori,T Asada,K Oikawa,K Kawata,T Tanaka,T Hori,T Asada,K Oikawa,K Kawata,T Tanaka,T Hori,T Asada,K Oikawa,K Kawata,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of chromatography. A

VOLUME: 1175

Page Numbers: 181-6

Journal Abbreviation:

ISSN: 0021-9673

DAY: 25

MONTH: 10

YEAR: 2007

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9318488

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables.

AFFILIATION: Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, 265-1 Higashijima, Akiha-ku Niigata, Niigata 956-8603, Japan.

Country: Netherlands

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Chromatogr A

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables Related Publications

• Analysis of a homologue of the adducin head gene which is a potential target for the Dictyostelium STAT protein Dd-STATa.
• Bent-crystal monochromators for high-energy synchrotron radiation.
• Characteristics of three cases of hepatocellular carcinoma showing enhanced technetium-99m-diethylenetriaminepentaacetic acid-galactosyl human serum albumin accumulation by single photon emission computed tomography analysis.
• Comparisons of several dosages of a GnRH analog with the standard dose of hCG in the treatment of follicular cysts in dairy cows.
• Components of the essential oil from Matteuccia struthiopteris.
• Crystal structure of Streptomyces erythraeus trypsin at 1.9 A resolution.
• Effect of postpartum intrauterine treatment with 2 % polyvinyl-pyrrolidone-iodine solution on reproductive efficiency in cows.
• Effects of a systematic application of human chorionic gonadotropin, gonadotropin-releasing hormone analog and bovine anterior pituitary gonadotropin in cows with cystic ovarian disease.
• Evidence that noncoding RNA dutA is a multicopy suppressor of Dictyostelium discoideum STAT protein Dd-STATa.
• Expression of g protein-coupled receptor-30, a g protein-coupled membrane estrogen receptor, in oxytocin neurons of the rat paraventricular and supraoptic nuclei.
• Impaired portal circulation resulting from L-arginine deficiency in patients with lysinuric protein intolerance.
• Improvement of first-service pregnancy rate in cows with gonadotropin-releasing hormone analog.
• Intranuclear mobility of estrogen receptor alpha and progesterone receptors in association with nuclear matrix dynamics.
• Molecular vibration imaging in the fingerprint region by use of coherent anti-Stokes Raman scattering microscopy with a collinear configuration.
• Multiple structural transitions of the GroEL subunit are sensitive to intermolecular interactions with cochaperonin and refolding polypeptide.
• NMR titration studies of histidine 57 and the [methylene-13C]PMS group in the phenylmethanesulfonyl (PMS) derivative of Streptomyces erythraeus trypsin.
• Near-field optical microscope with a multiheight scanning imaging mode.
• Nondestructive readout of a three-dimensional photochromic optical memory with a near-infrared differential phase-contrast microscope.
• Reduction of serum ghrelin concentration during interferon-alpha therapy in patients with chronic hepatitis C.
• Second-harmonic-generation microscope with a microlens array scanner.
• Separate analysis of asialoglycoprotein receptors in the right and left hepatic lobes using (99m)Tc-GSA SPECT in patients with acute hepatic damage.
• Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic-mass spectrometric determination of pesticides in green leafy vegetables.
• The folding characteristics of tryptophanase from Escherichia coli.
• Three-dimensional microfabrication with two-photon-absorbed photopolymerization.
• Transcutaneous photocoupler for transmission of biological signals.
• Two-photon-induced laser annealing for enhancement of photoluminescence intensity in ZnSe crystal.
• Use of milk progesterone enzyme immunoassay for early pregnancy diagnosis in cows.
• Use of two-photon absorption in a photorefractive crystal for three-dimensional optical memory.
• [Myocardial infarction during pregnancy]
• [Two cases of pyogenic spondylitis with chronic hepatitis C during combination therapy of interferon alfa and ribavirin]