نتایج جستجو برای: pesticides residue

تعداد نتایج: 68175  

In current study, the effects of Iranian rice cooking method (Kateh) on residue levels of 41 pesticides were investigated. The pesticides were selected according to Iranian National Standards Organization (INSO) regulations and covered 18 permitted and 23 banned pesticides belonging to different chemical classes such as organophosphate, triazole, and carbamate. A 250 g portion of rice sample wa...

In communities which consume rice as main food, importance of risk assessment forcontaminants is always taken into consideration by health authorities. The present study isan attempt for monitoring of 56 pesticides from different chemical groups in rice samplescollected from local markets in Tehran and estimation of daily intake of interested pesticidesthrough this monitoring. A valid method ba...

In communities which consume rice as main food, importance of risk assessment forcontaminants is always taken into consideration by health authorities. The present study isan attempt for monitoring of 56 pesticides from different chemical groups in rice samplescollected from local markets in Tehran and estimation of daily intake of interested pesticidesthrough this monitoring. A valid method ba...

Journal: :journal of agricultural science and technology 0
f. ganjeizadeh rohani pharmaceutics research center, institute of neuropharmacology, kerman university of medical sciences, kerman, postal code: 7616911319, islamic republic of iran. v. mahdavi laboratory of pesticide research department, iranian research institute of plant protection, postal code: 1475744741, islamic republic of iran. m. m. aminaee laboratory of pesticide research department, iranian research institute of plant protection, postal code: 1475744741, islamic republic of iran.

pesticides are one of the major pollutants in the environment. the residue of pesticides has been reported to be at a critical level in agricultural crops, especially in greenhouse crops. tomato is considered as an important vegetable in iranian food basket and is produced in fields and greenhouses. so, the current study aimed to assess diazinon and oxydemeton-methyl levels in tomatoes sampled ...

ابراهیمی قادی, محمد امین, شکرزاده, محمد, کرمی, محمد,

Background and purpose: Organophosphorous insecticides are chemical substances that are widely used globally against plant pests and diseases, led to an increase in farm productivity. On the other hand, their excessive use/misuse especially in the developing countries, their volatility, long-distance transports eventually results in widespread environmental contamination that creating serious a...

Journal: :Mass spectrometry reviews 2006
Lutz Alder Kerstin Greulich Günther Kempe Bärbel Vieth

This overview evaluates the capabilities of mass spectrometry (MS) in combination with gas chromatography (GC) and liquid chromatography (LC) for the determination of a multitude of pesticides. The selection of pesticides for this assessment is based on the status of production, the existence of regulations on maximum residue levels in food, and the frequency of residue detection. GC-MS with el...

Journal: :caspian journal of chemistry 2013
mohammad reza hadjmohammadi hosein asri s. saman s.j. nazari

an extraction method based on matrix solid phase dispersion (mspd) and high performance liquid chromatography with uv detection for quantification of two widely used pesticides (malathion and α-endosulfan) in khazar rice from north of iran were investigated. the ratio of solid phase (adsorbent) to sample, types of eluting solvent and its volume were optimized to achieve the highest recoveries f...

Gholamreza Jahed Khaniki, Maryam Amir Ahmadi Mohammad Rezaei Nabi Shariatifar, Shahram Shoeibi,

Background: Food safety has a direct impact on human health and as such is a growing concern worldwide. Presence of harmful pesticide residue in food is a serious cause for concern among consumers so it is important to monitor levels of pesticides in foods. The aim of this study was simultaneous determination of amounts of 58 pesticides in 40 wheat flour samples collected from the Tehran market...

Gholamreza Jahed Khaniki, Maryam Amir Ahmadi Mohammad Rezaei Nabi Shariatifar, Shahram Shoeibi,

Background: Food safety has a direct impact on human health and as such is a growing concern worldwide. Presence of harmful pesticide residue in food is a serious cause for concern among consumers so it is important to monitor levels of pesticides in foods. The aim of this study was simultaneous determination of amounts of 58 pesticides in 40 wheat flour samples collected from the Tehran market...

For the first time, a multi-residue methodfor simultaneous determination of 41LC-amenable pesticides in rice, belonging to different chemical classes has been developed in Iran by LC-MS/MS. The pesticides were analyzed simultaneously in a single run using positive electrospray ionization with multiple reaction monitoring (MRM) after extraction with slightly modified QuEChERS method. The calibra...

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