Pakistan Journal of Chemistry最新文献_第10页

Antiviral Potential of Medicinal Plants of Balochistan: Studies Based on the Local Investigations 俾路支省药用植物抗病毒潜力:基于当地调查的研究

Pakistan Journal of Chemistry Pub Date : 2013-12-30 DOI: 10.15228/2013.V03.I04.P03

F. Sattar, Shahabuddin, F. Ahmed, M. A. K. Malghani, S. Sattar

引用次数: 0

Characterization and Effects of Plant Derived Humic Acid on the Growth of Pepper under Glasshouse Conditions 植物源性腐植酸的特性及对温室条件下辣椒生长的影响

Pakistan Journal of Chemistry Pub Date : 2013-09-30 DOI: 10.15228/2013.V03.I03.P07

A. Khan, R. Khan, M. Z. Khan, F. Hussain, M. Akhtar

{"title":"Characterization and Effects of Plant Derived Humic Acid on the Growth of Pepper under Glasshouse Conditions","authors":"A. Khan, R. Khan, M. Z. Khan, F. Hussain, M. Akhtar","doi":"10.15228/2013.V03.I03.P07","DOIUrl":"https://doi.org/10.15228/2013.V03.I03.P07","url":null,"abstract":"A glasshouse study was conducted to evaluate the effects of plant derived humic acid (HA), previously characterised along with coal derived HA using HPLC and UV-VIS techniques on pepper growth, cholorophyll contents, P and K concentration in soil and plant. Characterization results classified coal, sunflower and maize derived HA as type A, B and Rp respectively. Plant growth parameters such as branches/plant, root length and weight, were significantly improved with HA, maximum branches (11) were found by HA application at highest rate (150 mg/kg). While, at lower application rate (30 mg/kg) maximum fruit weight was obtained. Similarly, longest roots were obtained with HA application at same rate. Flower and fruit chlorophyll contents significantly improved with HA application, yielding maximum flower cholorophyll contents by application of 90 mg/kg, whereas, in case of fruit maximum cholorophyll contents were found by application of HA at the rate of 30 mg/kg. Despite, plant growth improvement, fruit K concentration were also significantly improved with HA application. These results suggest that HA application at the optimum rate (30 mg/kg) improved plant growth parameters, however soil nutrients concentration only responded to HA application at the higher rate side.","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"136 1","pages":"134-139"},"PeriodicalIF":0.0,"publicationDate":"2013-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77820946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Enzyme Inhibition Studies on N-Substituted Sulfonamides Derived from m-phenetidine 间苯替丁衍生n -取代磺胺类化合物的酶抑制研究

Pakistan Journal of Chemistry Pub Date : 2013-09-30 DOI: 10.15228/2013.v03.i03.p02

Aziz‐ur‐Rehman, A. Siddiqa, M. Abbasi, S. Rasool, S. Z. Siddiqui, Samreen Gul, M. Ashraf, R. Nasar

引用次数: 4

Synthesis and Spectroanalytical Studies of a New Azodye Derived From 2-Amino-6- ethoxybenzothiazole and 4-Chloro-3,5-dimethylphenol and its Complexes With Fe (III) Ion 2-氨基-6-乙氧基苯并噻唑与4-氯-3,5-二甲基苯酚合成的新型偶氮染料及其与Fe (III)离子配合物的合成与光谱分析研究

Pakistan Journal of Chemistry Pub Date : 2013-09-30 DOI: 10.15228/2013.V03.I03.P01

A. Ali

引用次数: 4

Manufacturing of High Quality Teachers for Chemistry Education at Higher Secondary Level in Current Era 当代高中化学教育高素质教师的培养

Pakistan Journal of Chemistry Pub Date : 2013-09-01 DOI: 10.15228/2013.V03.I03.P08

R. Azmat

引用次数: 2

Nitrated and Brominated Narcotine and its Cleaved Adduct as Butyrylcholinesterase Inhibitors 硝化和溴化纳可汀及其裂解加合物作为丁酰胆碱酯酶抑制剂

Pakistan Journal of Chemistry Pub Date : 2013-09-01 DOI: 10.15228/2013.V03.I03.P06

M. Abbasi, Aziz‐ur‐Rehman, M. Qureshi, M. Shahid, S. Rasool, M. Ashraf

引用次数: 2

Short Assessment Survey of Organochlorine Pesticides in Marine Environment of Damb (Sonmiani) Balochistan Balochistan Damb (Sonmiani)海洋环境中有机氯农药的简要评价调查

Pakistan Journal of Chemistry Pub Date : 2013-09-01 DOI: 10.15228/2013.V03.I03.P03

M. Saleem, S. H. Rizvi, J. Aftab, Sanober Kahkashan, A. Khan, M. Qammaruddin

{"title":"Short Assessment Survey of Organochlorine Pesticides in Marine Environment of Damb (Sonmiani) Balochistan","authors":"M. Saleem, S. H. Rizvi, J. Aftab, Sanober Kahkashan, A. Khan, M. Qammaruddin","doi":"10.15228/2013.V03.I03.P03","DOIUrl":"https://doi.org/10.15228/2013.V03.I03.P03","url":null,"abstract":"M. Saleem, S. H. N. Rizvi, J. Aftab, S. Kahkashan, A. A. Khan and M. Qammaruddin * National Institute of Oceanography Karachi Pakistan St-47, Block-1 Clifton Karachi Email: * monawwars@gmail.com ABSTRACT To assess the contamination levels of organochlorine pesticides (OCPs) fifteen type (alpha, beta, gamma and delta HCH, Heptachlor, Heptachlor-epoxide, Endosulfan-I, Endosulfan-II, Aldrin, Dieldrin, Endrin, Endrin aldehyde, 4-4 ́ DDT, 4,4 ́ DDE and 4,4 ́ DDD) of OCPS in samples of sea water, sediments, four fish and two crab species were determined in Damb (Sonmiani) coastal area. DDT, HCH and its metabolites found most dominating while Endrin, Dieldrin and Heptachlor recorded higher among the fifteen monitored pesticides in Damb (Sonmiani) coastal water. All these pesticides are found below the chronic concentration levels as set by the Coastal Water Quality Criteria for Washington State. HCH and Heptachlor were observed to be highest in the coastal sediments of Damb (Sonmiani) coastal area and these values are higher than the Canadian Interim Sediment Quality Standard. DDT, Endosulfan, its metabolites and isomers detected high concentration in marine biota, while α-BHC, Heptachlor and Endrin were also detected in low concentration. A preliminary risk assessment indicates that the daily intake of chlorinated pesticides by people consuming fish from the Damb (Sonmiani) coastal area is still very low and, therefore, is not likely to cause an immediate risk.","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"51 1","pages":"107-115"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77250833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Efficacy of Erythropleum Suaveolens Water Extractives on the Durability of Ghanaian Antiaris toxicaria and Aanarium schweinfurthii 红胸草水提取物对加纳抗毒刺和施魏氏水蚤耐久性的影响

Pakistan Journal of Chemistry Pub Date : 2013-09-01 DOI: 10.15228/2013.V03.I03.P05

A. Asamoah, K. Frimpong-Mensah, C. Antwi-Boasiako, N. Darkwa, A. Kusi

引用次数: 1

Complexation of Iron by Dopamine Analogs; A Spectrophotometric and Potentiometric Study 多巴胺类似物对铁的络合作用分光光度法和电位法的研究

Pakistan Journal of Chemistry Pub Date : 2013-06-30 DOI: 10.15228/2013.V03.I02.P06

Tehmina Fiaz, N. Fatima, S. Zaidi

引用次数: 2

Effect of temperature on the dielectric relaxation time of binary mixture of 2-chloroaniline and 2-ethoxyethanol in 1,4-Dioxane solution using microwave absorption data 用微波吸收数据研究了温度对2-氯苯胺和2-乙氧基乙醇二元混合物在1,4-二氧环溶液中介电弛豫时间的影响

Pakistan Journal of Chemistry Pub Date : 2013-06-30 DOI: 10.15228/2013.V03.I02.P07

B. Nemmaniwar, S. Mokle, P. Kadam

{"title":"Effect of temperature on the dielectric relaxation time of binary mixture of 2-chloroaniline and 2-ethoxyethanol in 1,4-Dioxane solution using microwave absorption data","authors":"B. Nemmaniwar, S. Mokle, P. Kadam","doi":"10.15228/2013.V03.I02.P07","DOIUrl":"https://doi.org/10.15228/2013.V03.I02.P07","url":null,"abstract":"The dielectric constant ( ),dielectric loss ( ), relaxation times (τ) and the dipole moments (µ) of the binary mixtures of different molar concentrations of 2-chloroaniline C6H6ClN in the binary mixtures of 2-chloroaniline (2-CA) and 2-ethoxyethanol (2-EE) C4H10O2 in 1,4-dioxane C4H10O2 solutions were calculated by using standard standing wave microwave X- band techniques and Gopala Krishna’s single frequency 10.985 GHz concentration variational method at different temperatures 20,30,40,50 0 C. The dielectric relaxation process was found to be an activated process. The dielectric relaxation process of binary mixtures containing 30% mole-fraction of 2-CA were calculated at the respective given temperatures. On the basis of the observations, it was found that the dielectric relaxation process could be treated as the rate process like the viscous flow process. The dipole moment of pure and binary mixtures were calculated with varying temperatures. The solute-solute and solute-solvent molecular associations were predicted. Dipole moment (µ) of 2-CA and 2-EE non- linearly increased with rise in temperature.","PeriodicalId":19815,"journal":{"name":"Pakistan Journal of Chemistry","volume":"14 4","pages":"81-86"},"PeriodicalIF":0.0,"publicationDate":"2013-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91500710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5