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Catalytic Spectrophotometric Determination of Manganese in Some Medicinal Plants and Their Infusions
manganese determination catalytic spectrophotometric method medicinal plants infusions
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2010/4/21
The catalytic effect of manganese (II) on the oxidation of the dye 1,3-Dimethyl- 2 [4-N (N,N-dimethylamino) phenylazo] imidazolium perchlorate (BR) with potassium periodate in the presence of 1,10-phe...
Changes in Chlorophyll-Carotenoid Contents, Antioxidant Enzyme Activities and Lipid Peroxidation Levels in Zn-Stressed Mentha pulegium
Antioxidant Enzymes Chlorophyll-Carotenoid Mentha pulegium LPO Zn
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2010/4/21
Changes in Chlorophyll-Carotenoid Contents, Antioxidant Enzyme Activities and Lipid Peroxidation Levels in Zn-Stressed Mentha pulegium.
The Membrane Potentials of Periderm and Cuticular Membranes
Membrane potential periderm membrane cuticular membrane fixed charge concentration asymmetric potential
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2010/4/22
The membrane potentials of periderm and cuticular membranes were measured with KCI and NaCl solution using Ag/AgCI electrodes. For the electromotive force (emf) measurements, the concentration in both...
Phytochemical Studies at the Bulbs of Ornithogalum Umbellatum L.
Ornithogalum umbellatum Liliaceae bulbs new aromatic compounds
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2010/4/22
Phytochemical examination of the bulbs of Ornithogalum umbellatum L. led to the isolation a new steroidal compound. Its structure was determined to be 3-O-(2'-methoxy-4'-(2-pentenal))-phenyl sitostero...
Selenium Speciation in Karakaya Dam Lake's Water (Malatya-Turkey)
Selenium speciation Atomic absorption spectroscopy Enrichment Trace element
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2010/4/23
Concentrations of total inorganic selenium, Se(IV), Se(VI) and organically bonded selenium from samples of Karakaya dam lake\\\'s water were determined using ammonium pyrollidine dithio carbamate (APD...
Evaluation of sample pre-treatment procedures for the determination of Cr, Ni and V in biological matrices by ETAAS
decomposition electrothermal atomic absorption spectrometry Cr Ni V determination biological materials
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2010/4/23
Electrothermal atomic absorption spectrometry (ETAAS) was applied for the determination of chromium, nickel and vanadium in biological materials (earthworms, feather, lucerne). Three different decompo...
BSA-羟基磷灰石可溶性复合物的FTIR光谱。
为了人类的生存与发展--对中国科学院生物多样性研究工作的回顾和建议
人类 生存 中国科学院
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2013/7/30
为了人类的生存与发展--对中国科学院生物多样性研究工作的回顾和建议。