Search Results - "Ahmed, Mohamed Tawfic"

Dissipation behavior of thiophanate-methyl in strawberry under open field condition in Egypt and consumer risk assessment by Malhat, Farag, Abdallah, Osama, Ahmed, Fayza, Salam, Shokr Abdel, Anagnostopoulos, Chris, Ahmed, Mohamed Tawfic

“…Thiophanate methyl is a broad-spectrum benzimidazole fungicide extensively applied in pre- and post-harvest, for the control of a wide range of fruit and…”
Get full text

Hazard index, a tool for a long term risk assessment of pesticide residues in some commodities, a pilot study by Gad Alla, Sohair A., Loutfy, Naglaa M., Shendy, Amr H., Ahmed, Mohamed Tawfic

“…Samples of some vegetables were analyzed for pesticides residues using the accredited (QuEChERS) method. The method allowed the determination of 215 compounds…”
Get full text

Dissipation behavior of the fungicide tebuconazole in strawberries using liquid chromatograph tandem mass spectrometry (LC-MS/MS), a dryland ecosystem-based study by Malhat, Farag, Saber, El-Sayed, Abd El-Salam, Shokr, Anagnostopoulos, Chris, Tawfic Ahmed, Mohamed

“…Fungal diseases like downy and powdery mildews are a risk of high importance for strawberry cultivation in Egypt. In the current work, the dissipation…”
Get full text

Dynamic distribution of azoxystrobin residues in strawberry (Fragaria x ananassa Duchesne) using liquid chromatography tandem mass spectrometry: Putative evaluation of dietary intake by Abdelsalam Shokr, Shokr, Malhat, Farag, Saber, El-Sayed, El-Gammal, Hassan A., Tawfic Ahmed, Mohamed

“…A simple, rapid and environmentally compatible method involving quick, easy, cheap, effective, rugged and safe (QuEChERS) extraction technique for simultaneous…”
Get full text

Residues of Aliphatic and Polycyclic Aromatic Hydrocarbons in Some Fish Species of Lake Temsah, Ismailia, Egypt: An Analytical Search for Hydrocarbon Sources and Exposure Bioindicators by Ahmed, Mohamed Tawfic, Loutfy, Naglaa, Shoieb, Maha, Mosleh, Yahia Y

“…Residues of aliphatic and polycyclic aromatic hydrocarbons (PAHs) were monitored in some fish species collected from Temsah Lake, near Ismailia, Egypt. Fish…”
Get full text

Dietary Intake of Pesticides Based on Vegetable Consumption in Ismailia, Egypt: A Case Study by Ahmed, Mohamed Tawfic, Greish, Sarah, Ismail, Saad M, Mosleh, Yahia, Loutfy, Naglaa M, El Doussouki, Amina

“…The objective of this study was to assess pesticide residues in tomatoes, cucumbers, peppers, strawberries, and potatoes collected from local markets in…”
Get full text

Hazard assessment of the neonicotinoid insecticide thiamethoxam residues in tomato: a prelude to risk assessment profile by Malhat, Farag M., Watanabe, Hirozumi, Loutfy, Naglaa M., Ahmed, Mohamed Tawfic

“…A minor modification to the QuEChERS (quick, easy, cheap, effective, rugged and safe) method was carried out for the analysis of thiamethoxam in tomato using…”
Get full text

Degradation profile of azoxystrobin in Andisol soil: laboratory incubation by Purnama, Indra, Malhat, Farag, Jaikaew, Piyanuch, Watanabe, Hirozumi, Noegrohati, Sri, Rusdiarso, Bambang, Ahmed, Mohamed Tawfic

“…The fate of azoxystrobin in soil under the effect of different temperature is of interest because application directions specify soil-surface treatments for…”
Get full text

Residues, half-life times, dissipation, and safety evaluation of the acaricide fenpyroximate applied on grapes by Malhat, Farag, El-Mesallamy, Amani, Assy, Mohamed, Madian, Walid, Loutfy, Naglaa M., Ahmed, Mohamed Tawfic

“…A validated high-performance liquid chromatography-diode array detector method for simultaneous determination of the acaricide fenpyroximate on grape was…”
Get full text

Residues and dissipation of the pesticide emamectin benzoate under Egyptian field condition: a case study by Malhat, Farag, Fayz, Abd El-Salam, Loutfy, Naglaa M., Ahmed, Mohamed Tawfic

“…A simple, rapid analytical procedure for the quantification of emamectin benzoate in tomato was developed using high performance liquid chromatography with…”
Get full text

The efficacy of an oxidation pond in mineralizing some industrial waste products with special reference to fluorene degradation: a case study by Tawfic Ahmed, Mohamed, Dewedar, Ahmed, Mekki, L, Diab, Amer

“…The efficacy of the oxidation pond on the outskirts of the 10th of Ramadan, the main industrial city, in Egypt was examined. Samples of wastewater collected…”
Get full text

Residue levels of DDE and PCBs in the blood serum of women in the Port Said region of Egypt by Ahmed, Mohamed Tawfic, Loutfy, Naglaa, El Shiekh, Einas

“…An investigation was conducted to detect residues of 1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene (DDE) and polychlorinated biphenyls (PCBs) in blood serum…”
Get full text

Determination of malathion residues in some medicinal plants by liquid chromatography with gas chromatographic/mass spectrometric confirmation by Ahmed, M.T. (Suez Canal University, Ismailia, Egypt.), Ismail, S.M.M, Mosleh, Y.Y

“…A method for determining malathion residues by reversed-phase liquid chromatography (LC) using methanol only as mobile phase is described. Malathion…”
Get full text

The Grand Ethiopian Renaissance Dam and the sustainability of water resources: would monetary compensation warrant some more restrictions on dams? by Ahmed, Mohamed Tawfic

“…The Ethiopian Government is currently building The Grand Ethiopian Renaissance dam (GERD) on the Blue Nile, one of the largest in Africa. The dam would be used…”
Get full text

The influence of baking fuel on residues of polycyclic aromatic hydrocarbons and heavy metals in bread by Ahmed, Mohamed Tawfic, Abdel Hadi, El-Sayed, El Samahy, S, Youssof, K

“…The influence of fuel type used to bake bread on the spectrum and concentrations of some polycyclic aromatic hydrocarbons and heavy metals in baked bread was…”
Get full text

Residue Levels, Profiles, Emission Source and Daily Intake of Polycyclic Aromatic Hydrocarbons Based on Smoked Fish Consumption, An Egyptian Pilot Study by Ahmed, Mohamed Tawfic, Malhat, Farag, Loutfy, Naglaa

“…Residue levels and spectrum of polycyclic aromatic hydrocarbons (PAHs) were determined in smoked fish, and canned smoked fish, collected from grocery shops…”
Get full text

Residues of organochlorine and synthetic pyrethroid pesticides in honey, an indicator of ambient environment, a pilot study by Malhat, Farag M., Haggag, Mohamed N., Loutfy, Naglaa M., Osman, Mohamed A.M., Ahmed, Mohamed Tawfic

“…•This paper is presenting some new ideas of monitoring pesticides contamination in the environment.•It is the first time to use this approach in Egypt. Samples…”
Get full text

Consumer safety evaluation of pyraclostrobin residues in strawberry using liquid chromatography tandem mass spectrometry (LC-MS/MS): An Egyptian profile by Malhat, Farag, Saber, El-Sayed, Elsalam Shokr, Shokr Abd, Ahmed, Mohamed Tawfic, El-Sayed Amin, Alaa

“…The dissipation rates of pyraclostrobin, a methoxyacrylate strobilurin group fungicide, along with its final residues and dietary exposure in strawberry were…”
Get full text

Risk assessment of some organic contaminants: a case study based on food consumption in Tanta and Ismailia cities, Egypt by Issa, Asmaa Bayoumi, Yassin, Khaled, Loutfy, Naglaa, Ahmed, Mohamed Tawfic

“…The impact of some organic pollutants on some residents of Tanta and Ismailia cities of Egypt through their consumption of vegetables, fruits and fish (Nile…”
Get full text

Review of Contamination by Polycyclic Aromatic Hydrocarbons (PAHs) in Egyptian Aquatic Environment by Malhat, Farag, Loutfy, Naglaa, El Menyawi, Menna Allah I., Ahmed, Mohamed Tawfic

“…Polycyclic aromatic hydrocarbons (PAHs), one of the major chemical constituents of petroleum, are widely used and are largely present in all environmental…”
Get full text