sulfuric acid and phosphoric acid

Báo cáo lâm nghiệp: "Effects of sulfuric acid and nitrogen deposition on mineral nutrition of Picea abies (L.) Karst" ppt

Ngày tải lên : 09/08/2014, 04:20

... deionized water (A) No Ca and Mg leaching could be measured in the water treatment (A) (B) Sulfuric acid, however, caused a release of 20 peq of Ca and 65 peq of Mg per tree K and Ca needle contents ... both a healthy stand (A) growing 50 m to the west of a farm and a leeward localized declining stand (150 m to the east) P, K and Ca needle contents also differed between the stands (Table IV) ... samples was investigated (Kaupenjohann and Hantschel, 1987) using sulfuric acid of pH’s corresponding to the average proton of the canopy of various spruce stands of the Fichtelgebirge The equivalent...

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Sulfuric acid manufacture analysis, control and optimization

Ngày tải lên : 24/09/2016, 07:13

... strong sulfuric acid (Fig 1.4) About 10% of sulfuric acid is made this way Virtually, all is reused for petroleum refining and polymer manufacture 1.7 Sulfuric acid product Most industrial acid ... H2SO4 15 16 Sulfuric Acid Manufacture Sulfuric acid price (US$ per tonne) U.S Gulf spot sulfuric acid 400 300 200 100 2003 2005 2007 Year 2009 2011 Figure 2.3 Spot price for sulfuric acid at U.S ... of phosphate and sulfate fertilizers, virtually all of which are made with sulfuric acid Production and consumption 13 Table 2.1 Sources of sulfur and SO2 for producing sulfuric acid Virtually,...

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davenport - sulfuric acid manufacture

Ngày tải lên : 03/04/2014, 12:13

... strong sulfuric acid, Fig 1.4 About 10% of sulfuric acid is made this way Virtually all is re-used for petroleum refining and polymer manufacture 1.7 Sulfuric Acid Product Most industrial acid ... strengthened 1.5% H20 sulfuric acid sulfuric acid (1.2) AH ~ ~ - 130 MJ per kg mole of S O Reaction (1.2) produces strengthened sulfuric acid because it consumes H20(Q and makes HzSO4(g) H2SO4(g) ... which are made with sulfuric acid Data sources: 1950-1969 and 1983-1987, Buckingham and Ober, 2002 1970-1982, Sander et al., 1984, p 412 1988-2003, Kitto, 2004a 2.1 Uses Sulfuric acid is mostly used...

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Báo cáo Y học: Amino acids 3–13 and amino acids in and ﬂanking the 23FxxLF27 motif modulate the interaction between the N-terminal and ligand-binding domain of the androgen receptor pdf

Ngày tải lên : 17/03/2014, 10:20

... The ligand-dependent interaction between AR NTD and AR LBD, N/C interaction, was studied in yeast and mammalian in vivo protein interaction systems, and in Ó FEBS 2002 Interaction between androgen ... 15 and 37, the putative a-helix is ﬂanked by proline residues Within the helix, two candidate FxxFF protein interaction motifs (F is any hydrophobic amino acid residue and x is any amino acid ... amino acids 23, 26 and 27 completely abolished interaction with GalDBD-AR.LBD and alanines at positions 24 and 25 increased the interaction capacity All alanine substitutions of amino acids ﬂanking...

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Báo cáo khoa học: Characterization of surface n -alkanes and fatty acids of the epiphytic lichen Xanthoria parietina, its photobiont a green alga Trebouxia sp., and its mycobiont, from the Jerusalem hills pot

Ngày tải lên : 23/03/2014, 17:21

... Trebouxia erici and Trebouxia impressa (cultures from the Botanical Institute, St Petersburg, Russia) not contain the 18 : and 18 : fatty acids, and produce only two fatty acids: 16 : (30% and 51%, ... respectively) and 18 : (69% and 42%, respectively) It is probably an artefact of the GC analysis Mycobionts produce saturated fatty acids such as tetradecanoic acid (5–9%), hexadecanoic acid (34–37%) and ... library (7th edition) Results and discussion The complex hydrocarbons and fatty acids produced by the cultured photobiont green alga Trebouxia sp and the mycobiont, and also by X parietina, were...

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Báo cáo lâm nghiệp: "ree nutrition of Norway spruce as modiﬁed by liming and experimental acidiﬁcation at the Höglwald site, Germany, from 1982 to 2004" pdf

Ngày tải lên : 07/08/2014, 16:20

... Waldbodenbericht 1996, Band Bundesministerium fỹr Ernọhrung, Landwirtschaft und Forsten, 1999 Eect of acidication and liming on tree nutrition APPENDIX Mean K, Ca, Mg, Mn, Fe and Al concentrations ... input between May and November by about 50% Tap water was deionised and adjusted to rain water conductivity (1020 àS cm1 ) through the addition of Ca(NO3 )2 and MgSO4 For acid irrigation, a ... Eect of acidication and liming on tree nutrition 863 Figure Mean N concentrations of current (C), current + one year (C+1), and current + two year needles (C+2) at the A1 (control), B1 (acid irrigation),...

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báo cáo khoa học: " Proteome analysis of Norway maple (Acer platanoides L.) seeds dormancy breaking and germination: influence of abscisic and gibberellic acids" ppsx

Ngày tải lên : 12/08/2014, 03:20

... between germination inhibitors (e.g abscisic acid, ABA) and growth promoters (e.g gibberellin acid, GA) is a main cause of seed dormancy breaking and germination (hormone balance theory of dormancy) ... nine spots were regulated by both ABA and GA Of this group, six spots were down-regulated and three up-regulated by ABA and four spots were down-regulated and five up-regulated by GA Eight spots ... analysis and is being used more and more in studies on seed development, dormancy, dormancy breaking and germination [18,20,21] Here, a proteomic analysis of seed dormancy breaking and germination...

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báo cáo khoa học: " Ascorbate metabolism and the developmental demand for tartaric and oxalic acids in ripening grape berries" pot

Ngày tải lên : 12/08/2014, 03:21

... to oxalic acid, L-threonic acid and L-tartaric acid [reviewed in [47,48]], Figure In geraneaceous plants, Wagner and Loewus [49] demonstrated that cleavage of Asc between carbon atoms and results ... ascorbate (tAsc) and the ascorbate catabolites tartaric (TA) and oxalic acids (OA) Figure Accumulation of total ascorbate (tAsc) and the ascorbate catabolites tartaric (TA) and oxalic acids (OA) All ... designed and conducted all research experiments, analysed the data, and drafted/constructed the manuscript CMF supervised all research CMF and KLS contributed to the research ideas and design, and...

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Potential Climate Change Impacts on Corals and Coral Reefs in Melanesia from Bleaching Events and Ocean Acidification

Ngày tải lên : 08/06/2016, 11:26

... 20 m (Davies et al 1997, Foale 2006) and bleaching was also observed in areas near Motupore and Madang and the Lihir Islands and Lak region near New Ireland (Srinivasan 2000) In 1999-2000 increasing ... organisms and the effect of increased CO2 on seawater acidification and the calcification/dissolution processes a-b: red and green calcareous benthic algae, c: foraminifera, d-e: shallow and deep-water ... reefs north of the Solomon and Vanuatu Island groups, and by 2040-49 this area expands to include waters and reefs north of PNG By 2060-69 both thermal stress and marginal to submarginal saturation...

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Interim Method for Determinationof Melamine and Cyanuric AcidResidues In Foods using LC-MS/MS:Version 1.0

Ngày tải lên : 06/10/2016, 09:29

... Cyanuric Acid Isotopically labeled Cyanuric Acid (Cambridge Isotope Labs #CNLM4661-1.2) 13C315N3 labeled Cyanuric Acid Alternate Source for Isotopically Labeled Cyanuric Acid: Isotec; 13C3 Cyanuric Acid ... Results and Discussions A fast, sensitive, and specific method was developed for the determination of melamine and cyanuric acid in foods Even though the original method was developed and validated ... containing incurred residues of melamine and cyanuric acid and FDA Forensic Chemistry Center for catfish containing incurred residues melamine and cyanuric acid The authors also wish to thank Gonçalo...

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Báo cáo y học: Esterified Hyaluronic Acid and Autologous Bone in the Surgical Correction of the Infra-Bone Defects"

Ngày tải lên : 03/11/2012, 11:35

... flap was elevated and the granulation tissue was removed showing the true extension and depth of the infra-bone defect Debridement and root preparation were carried out with hand and ultrasonic ... were made at the first examination and saved for follow-up control examinations Radiographs were performed immediately before treatment and at 10 days, and 6, 9, and 24 months after treatment 66 ... of plaque was registred mesially, buccally, distally, and lingually Data were obtained at baseline before treatment and at 10 days, and 6,9, and 24 months after treatment Surgical Technique After...

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acid sulfuric

Ngày tải lên : 05/07/2013, 01:27

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$Application of Hydrothermal Reaction to Biodegradability Improvement of Refractory Pollutants: Structural Conversion of Di- and Trichloroacetic Acid to Biodegradable Products$

Application of Hydrothermal Reaction to Biodegradability Improvement of Refractory Pollutants: Structural Conversion of Di- and Trichloroacetic Acid to Biodegradable Products

Ngày tải lên : 05/09/2013, 08:40

... products from DCAA and TCAA by o hydrothermal reaction at 250 C and MPa Journal of Water and Environment Technology, Vol.1, No.2, 2003 acid, % of glycolic acid and % of formic acid were detected ... organic acid, chlorine ion and DOC, all samples were filtered to separate solid materials, using micro-syringes and filters with pore size of 0.45 µm RESULTS AND DISCUSSION Glycolic acid Formic acid ... malic acid decreased, and was converted into more simple organic acids as reaction time increased Glycolic acid increased up to 28 % at 27 min, and then decreased gradually However, formic acid...

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Characterization of the Carbon Stable Isotope Ratio and Fatty Acid Structure of Zostera japonica in Coastal Areas

Ngày tải lên : 05/09/2013, 10:17

... fatty acids, and the ratio of each fatty acid RESULTS AND DISCUSSION Characteristics of carbon stable isotope in Z japonica The mean δ13C of Z japonica was -12.4 ± 1.6‰ in the leaves and stems, and ... the roots and rhizomes Meanwhile, Z marina in the leaves and stems has -9.7 ± 1.0‰, and in the roots and rhizomes has -9.6 ± 1.0‰ Fig shows that the leaves and stems as well as the roots and rhizomes ... We found about 30 kinds of fatty acids in the leaves and stems and about 36 kinds of fatty acids in the roots and rhizomes of Z japonica We focused on the fatty acid content of Z japonica , because...

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Effect of unsaturated fatty acid esters of biodiesel fuels on combustion, performance and emission characteristics of a DI diesel engine

Ngày tải lên : 05/09/2013, 15:28

... hydroperoxides increases the risk of polymerization and acidiﬁcation and of the appearance of insoluble sediments and gums, which can lead to ﬁlter plugging and deposits in the fuel systems Esterified ... of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.411-430 427 properties and fatty acid composition on CO and HC emissions The correlation analysis reveals that the CO and HC emissions ... and the product was allowed to settle in two layers The upper layer consisted of ester and alcohol and was separated from the bottom layer (glycerin) The upper layer was distilled to remove and...

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Tài liệu Quy trình sản xuất acid sulfuric pdf

Ngày tải lên : 18/01/2014, 09:20

... miền Nam: Sản xuất axít sulfuric 80.000 tấn/năm, giúp nhà máy chủ động nguyên liệu để đưa sản lượng phân lân loại từ 100.000 trước lên 200.000 Nguồn nguyên liệu sản xuất axít sulfuric quặng sunfua...

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THÀNH PHẦN hợp CHẤT AXÍT béo và CAROTENOID của gấc fatty acid and carotenoid composition of gac (momordica cochinchinensisspreng) fruit

Ngày tải lên : 09/02/2014, 00:08

... 38 and 22.1 ( 15.2 g -carotene/g FW in extracted samples of aril and mesocarp, respectively, and 16 and g/g of zeaxanthin and 35 and g/g of -cryptoxanthin in saponified samples of mesocarp and ... relative standard deviation, % vaccenic (in two fruit), R-linolenic, and eicosa-11-eneoic acids were also detected The fatty acid composition of the aril and seed are interesting, and they reflect ... Internal standard (nonadecanoic acid methyl ester) was added, and the extraction took place at 55 °C for 30 with shaking every 10 Extracts were filtered and dried over sodium sulfate, and the solvent...

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Tài liệu Báo cáo " Obtaining Essential Oil and Shikimic Acid from Star Anise Fruit (Illicium verum Hook) " ppt

Ngày tải lên : 12/02/2014, 17:20

... essential oil and shikimic acid from star anise fruits With this method, obtaining yield of essential oil and shikimic acid respectively are 9.5% and 5.6% (essential oil content and shikimic acid content ... Sciences and Technology 26 (2010) 110-113 for obtaining simultaneously essential oil and shikimic acid from star anise fruits The yield of essential oil and shikimic acid were 9.5% and 5.6% (r.m), ... obtained by methods N0 1, N0 and N0 were shown at table and table Table Obtaining simultaneously essential oil and shikimic acid from star anise fruits by methods N0 1, N0 and N0 Method N0 N0 N0 Star...

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Tài liệu Báo cáo khoa học: The endogenous retinoid metabolite S-4-oxo-9-cis-13,14-dihydro-retinoic acid activates retinoic acid receptor signalling both in vitro and in vivo pdf

Ngày tải lên : 18/02/2014, 08:20

... acid as a major plasma metabolite of 9-cis-retinoic acid and limited transfer of 9-cis-retinoic acid and 9,13-dicisretinoic acid to the mouse and rat embryos Drug Metab Dispos 22, 928–936 Shirley ... (A, lanes and 5; B, lanes and 5) or 10 lM S-4o9cDH-RA (A, lanes and 6; B, lanes and 6), followed by incubation with trypsin or buffer only as indicated (for details, see Materials and methods) ... RARa and RXRb (A), RARa and RXRb (B), RXRa (C) or RXRb (D) Cells were treated with S-4o9cDH-RA at the indicated concentrations at-RA (100 nM) was used as a positive control in (A) and (B), and...

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Tài liệu Báo cáo khoa học: Looking for the ancestry of the heavy-chain subunits of heteromeric amino acid transporters rBAT and 4F2hc within the GH13 a-amylase family ppt

Ngày tải lên : 18/02/2014, 13:20

... barrel between the b3-strand and the a3-helix; (b) the catalytic machinery consists of the b4-strand aspartate (nucleophile), b5-strand glutamate (proton donor) and b7-strand aspartate (transition-state ... especially in higher animals (mammals and also in frogs and ﬁshes), an aspartate (aspartic acid 248 in human 4F2hc; aspartic acid 380 in Fig as both the N-terminal and transmembrane segments are involved) ... exception of those from birds, lizards and frogs (lacking both essential aspartates at the b4- and b7-strands) and also from some ﬁshes (lacking the b4-strand aspartate) This may mean that the...

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