نتایج جستجو برای: pine cones
تعداد نتایج: 28479 فیلتر نتایج به سال:
Pinus koraiensis polysaccharides (PKP) were extracted by hot water from P. koraiensis pine cones. Five polysaccharide fractions named PKP-A, PKP-B, PKP-C, PKP-D and PKP-E were successfully separated at final ethanol concentrations of 30%, 50%, 60%, 70% and 80%, respectively. HPLC, FT-IR, GC-MS and automatic amino-acid analysis were applied to investigate their chemical characteristics. Monosacc...
Introduction: The most common approach for obturation of roots which were treated endodontically is lateral condensation. Finger spreaders have an essential role in packing the gutta-percha cones. This survey was carried out to compare the compaction index of root canal obturation made by Stainless Steel (SS) and Nickel-Ttitanium (Ni-Ti) spreaders and different gutta-percha tapers. Materials a...
The study was carried out in the territory of Polesie State Radioecological Reserve. For long-term environmental effects Chernobyl accident Belarus, Reserve established 1988. It is located Belarus sector exclusion zone. objective to estimate content plutonium isotopes samples inside and outside area. Determination by alpha spectrometry. method includes complete decomposition samples, radiochemi...
Recently, the use of magnetic sorbents has gained a spread attention due to their eco-friendly characteristic, ease separation and low cost. Herein, novel biocomposite sorbent pine cone gel beads (MPCB) was synthetized investigated for single simultaneous removal Cu(II) Cr(VI) from aqueous solution. Pine cones waste materials were first magnetized with Fe3O4 nanoparticles then encapsulated in c...
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