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57 articles for “Spectrophotometer”
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Research ArticleOpen accessIn the abstractAlteration of Iron Level in Drinking Water by Aeration in Gonbad Kavoos (North East of Iran)Abdoljalal Marjani, Abdoljabbar Nazari, Mostefa SeyyedProblem statement: In this study, removal of iron was surveyed in well water in Gonbad Kavoos City. Approach: Samples were taken before and after aeration. Concentration of iron in each sample was measured by spectrophotometer. Results: The results showed that the iron concentration was decreased after aeration (0.55, 0.44, 0.44, 0.46, 0.40 and 0.41 mg L-1) when compared with before … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 2 · 30 Jun 2009 · 7,538 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeavy Metals and Anion Levels in Some Samples of Vegetable Grown Within the Vicinity of Challawa Industrial Area, Kano State, NigeriaJ. C. Akan, F. I.A. Abdulrahman, V. O. Ogugbuaja, J. T. AyodeleProblem section: Effluents from the surrounding industries such as tannery and textile are used by vegetable farmers for the irrigation of their crops. These effluents may contain some toxic metals which bioaccumulate along the food chain. Moreover the uptake of such toxic metals by crops is governed by their availability and concentration in the soil. Therefore such crops may accumulate … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 9,278 accessesView PDFCite
Research ArticleOpen accessIn the abstractDiatrizoate, Iopromide and Iotrolan Enhanced Cytotoxicity of Daunorubicin in Multidrug Resistant K562/adr Cells: Impaired the Mitochondrial and Inhibited the P-Glycoprotein FunctionNitaya Snitwongse Na Ayudhya, Samlee MankhetkornMultidrug resistance was an obstacle in cancer chemotherapy because the cells decreased their intracellular drug accumulation by energy-dependent compounds efflux pumps such as P-glycoprotein (P-gp). This study observed some iodinated radiographic contrast media, diatrizoate, iopromide and iotrolan affected the cellular energetic state and the kinetics of P-gp in drug-sensitive K562 and drug resistant K562/adr cell lines using spectrophotometer and spectrofluorometer. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,169 accessesView PDFCite
Research ArticleOpen accessIn the abstractColourimetric Determination of Phospholipase Activities in Balamuthia mandrillarisSyed Razi HaiderBalamuthia mandrillaris is a recently identified protozoan pathogen that can cause fatal granulomatous encephalitis however the pathogenesis and pathophysiology associated with Balamuthia encephalitis remain unclear. We have recently isolated B. mandrillaris from a 33-years old male who died of encephalitis. Using this isolate, we demonstrated for the first time that B. mandrillaris exhibited phospholipase activities. More specifically, B. mandrillaris exhibited … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 3 · 30 Sep 2007 · 6,777 accessesView PDFCite
Research ArticleOpen accessIn the abstractPlasmid-mediated Detoxification of Mycotoxin Zearalenone in Pseudomonas Sp. ZEA-1Abdullah D. AltalhiThe Pseudomonas sp. Strain ZEA-1 was isolated from rhizosphere of corn plant by an enrichment technique showed capability of utilizing zearalenone as the sole source of carbon. The bacterium rapidly utilized zearalenone beyond 200 µg/ml and showed prolific growth in a minimal medium containing 100 µg/ml zearalenone source. The course of ZEA degradation as well as the formation of its … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 3 · 30 Sep 2007 · 7,862 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Antioxidants Supplement on Lipid Peroxidation and Serum Aryl Esterase Enzyme in Rheumatoid Arthritis PatientsMahsa Jalili, Seyed-Rafi Aref-Hosseini, Sousan Kolahi et al.Problem statement: Rheumatoid Arthritis (RA) is one of the common autoimmune diseases with unknown etiology that its prevalence ratio in females to males is 3:1. It has been suggested that serum antioxidant levels is reduced and lipid peroxidation is increased due to oxidative stress. According to a recent research, antioxidant supplements may play an important role in controlling oxidative stress. … …Current Research in Medicine, Vol. 2, Issue 2 · 2 Dec 2011 · 7,039 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Spectrophotometric Method for Determination of Iron in Herbs, Spices and Beans with 2,6-Diacetylprydine Dioxime and 2-Acetylpyridine MonoximeZ. R. Komy, E. A. Abu-Gharib, A. DesokyThe reaction of iron (II) with 2, 6-diacetylprydine dioxime (H2dapd) and 2-acetylprydine monoxime (Hapm) in 10% and 60% v/v ethanol-water solution at pH 2.5 and 7.5, respectively, were studied using direct and first derivative spectrophotometry. Fe (III) is reduced by H2dapd and gives iron (II) complex. A simple, rapid, selective and sensitive method for the determination of Fe (II), Fe … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,966 accessesView PDFCite