维普中文期刊产品整合服务
7篇 您的检索式:作者名="MAHBOOB, Shahid"
    题名 作者 年代 出处 被引量
1反相高效液相色谱法测定有机氯及含氮杀虫剂在水体·土壤沉积物及鱼体中的残留(摘要)(英文)显示文摘[目的]测定水体、土壤沉积物以及鱼体内有机氯及含氮杀虫剂残留物,为科学评估杀虫剂残留对巴基斯坦地区公共卫生、农业和环境的影响提供依据。[方法]以食用鱼南亚野鲮为材料,设计2组体重,采用高效液相色谱法分别测定水体、土壤沉积物以及南亚野鲮体内α-硫丹、DDE、甲基对硫磷、异丙隆、呋喃丹、阿特拉津等含量。[结果]土壤沉积物中DDE的含量达(2.340±0.025)μg/g,在250 ~750 g的南亚野鲮体内的含量分别为(0.270 ±0.000 6)μg/g,但在水体中未发现DDE残留;不同饲料中农药残留物90%为有机磷、呋喃丹以及有机氯杀虫剂,6%为杀菌剂,仅4%为除草剂,在250 ~750 g以及800 ~1 300 g的南亚野鲮体内硫丹的含量分别达到(0.491±0.000 6)μg/g和(3.050±0.060 8)μg/g,异丙隆的含量分别达到(0.010±0.0003)μg/g和(0.014±0.000 6)μg/g,且随体重上升,其脂肪含量增加,积累的农药残留物则越多;硫丹、甲基对硫磷、阿特拉津和呋喃丹的含量在水体达到最大残留限量水平0.001μg/g。[结论]通过生物积累和在自然界中的运输以及再沉积作用,有机氯及其他杀虫剂的使用给全球的环境造成了严重污染,因此,在巴基斯坦已经禁止使用DDT等有机氯农药。Shahid Mahboob Ghazala S.Sultana Muhammad Rafique Asi S.Nadeem A.S.Chaudhry 2009Agricultural Science & Technology2009,10,5:9
2Cobalt Sulfide Confined in N-Doped Porous Branched Carbon Nanotubes for Lithium-Ion Batteries显示文摘Lithium-ion batteries(LIBs) are considered new generation of large-scale energy-storage devices.However,LIBs suffer from a lack of desirable anode materials with excellent specific capacity and cycling stability.In this work,we design a novel hierarchical structure constructed by encapsulating cobalt sulfide nanowires within nitrogen-doped porous branched carbon nanotubes(NBNTs)for LIBs.The unique hierarchical Co9S8@NBNT electrode displayed a reversible specific capacity of 1310 mAhg-1 at a current density of 0.1 Ag-1,and was able to maintain a stable reversible discharge capacity of 1109 mAhg-1 at a current density of 0.5 Ag-1 with coulombic efficiency reaching almost 100% for 200 cycles.The excellent rate and cycling capabilities can be ascribed to the hierarchical porosity of the one-dimensional Co9S8@NBNT internetworks,the incorporation of nitrogen doping,and the carbon nanotube confinement of the active cobalt sulfide nanowires offering a proximate electron pathway for the isolated nanoparticles and shielding of the cobalt sulfide nanowires from pulverization over long cycling periods.Yongsheng Zhou Yingchun Zhu Bingshe Xu Xueji Zhang Khalid A.Al.Ghanim Shahid Mahboob 2019Nano-Micro Letters2019,11,2:3
3A Convenient Synthesis of 6,8-Dimethoxy-3-[(2-(4-methoxyphenyl)ethyl)isocoumarin显示文摘6,8-Dimethoxy-3-[2-(4-methoxyphenyl ) 乙醇] isocoumarin 被 5,7-dimethoxy- hompophthalic 酸的冷凝作用与 3-(4-methoxyphenyl ) 综合 propanoyl 氯化物。综合混合物的结构被它的集体度谱的研究证实。综合混合物为 DL-agrimonolide 的合成担任一个模型。AHMAD, H. Badaruddin ARFAN, Muhamma RAMA, N. Hasan MALANA, M. Aslam MAHBOOB, Shahid 2007Chinese Journal of Chemistry2007,25,1:2
4Effect of pollution on DNA damage and essential fatty acid profile in Cirrhinus mrigala from River Chenab显示文摘The objective of this study was to evaluate the effect of anthropogenic pollution on DNA damage and the fatty acid profile of the bottom dweller fish( Cirrhinus mrigala), collected from the River Chenab, in order to assess the effect of the toxicants on the quality of the fish meat. The levels of Cd, Hg, Cu, Mn, Zn, Pb, Cr and Sn and of phenols from this river were significantly higher than the permissible limits set by the USEPA. Comet assays showed DNA damage in Cirrhinus mrigala collected from three different sampling sites in the polluted area of the river. Significant differences were observed for DNA damage through comet assay in fish collected from polluted compared to control sites. No significant differences were observed for DNA damage between farmed and fish collected from upstream. The micronucleus assay showed similar trends. Fish from the highly polluted sites showed less number of fatty acids and more saturated fatty acids in their meat compared to fish from less polluted areas. Several fatty acids were missing in fish with higher levels of DNA in comet tail and micronucleus induction. Long-chain polyunsaturated fatty acids, eicosapentaenoic acid(20:5n-3) was found missing in the fish from polluted environment while it was found in considerable amount in farmed fish 7.8±0.4%. Docosahexaenoic acid(22:6n-3) also showed significant differences as 0.1±0.0 and 7.0±0.1% respectively, in wild polluted and farmed fishes.Bilal HUSSAIN Tayyaba SULTANA Salma SULTANA K.A.AL-GHANIM Shahid MAHBOOB 2017Chinese Journal of Oceanology and Limnology2017,35,3:1
5Surface characteristics of UV-irradiated chitin-based shape memory polyurethanes显示文摘Zia Khalid Mahmood Zuber Mohammad Mahboob Shahid 2010Carbohydrate Polymer2010,80,:1
6ESTIMATION OF VOLATILE CONSTITUENTS IN THE FISH FLESH FROM WILD AND FARMED CIRRHINA MRIGALA AND CYPRINUS CARPIO显示文摘Analysis of fish meat using gas chromatography is described.Flavor is the sensation arising from the interplay of the signals of sensing smell, taste and irritating stimuli from food stuff.For human, flavor and nutrition are inseparable.In fish, trace amount of volatile organic compounds (VOCs) are the major compounds to affect consumer’s preference, which are produced during storage and spoilage.In the present study, volatile compounds were extracted by Likens-Nickerson concurrent distillation apparatus from wild and farmed Cirrhina mrigala and Cyprinus carpio. The quantitative and qualitative estimation of volatiles was made by gas chromatography.Wild and farmed fish of different fish sizes were compared for these compounds (appearing in the form of peaks), which were identified from their retention time by comparing with the standards.Fifteen major VOCs were found in these species which included hexadecane, 3-octanol, hexanal, decane, 3-hexene-1-ol, 2-undecanone, 2-heptanone, butanal, 2-nonanone, 1-heptanal, furaldehyde, 3-methyl-1-butanal, trans-3-hexene-1-ol, octanal and decanal.These compounds varied qualitatively and quantitatively in both wild and farmed fish of different fish sizes.Shahid Mahboob Bilal Hussain Zahid Iqbal Abdul Shakoor Chaudhry 2009水生生物学报2009,33,3:1
7Intervarietal Variation in Proximate Composition and Antioxidant Potential of Dry Peas (Pisum sativum L)显示文摘Majeed Mudasir Chatha Shahzad-Ali-Shahid Hussain Abdullah-ljaz ASI Muhammad-Rafique Mahboob Shahid Yousaf Muhammad 2010Journal of Chemistry and Chemical Engineering2010,4,11:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费