preparation and standardization of base and acid solutions

hoa duoc

Ngày tải lên : 15/05/2015, 01:00

... Plasma-Atomic Emission Spectroscopy 87 12 Standard Solutions and Titratable Acidity 95 A Preparation and Standardization of Base and Acid Solutions 97 B Titratable Acidity and pH 99 13 Fat Characterization ... 155 A Determination of Methanol and Higher Alcohols In Wine by Gas Chromatography 157 B Preparation of Fatty Acid Methyl Esters (FAMEs), and Determination of Fatty Acid Profile of Oils by Gas Chromatography ... oneself with the use of balances, mechanical pipettes, and volumetric glassware, and assess accuracy and precision of data generated Principle of Method Proper use of equipment and glassware in...

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the relationship between cnsumer acceptability and descriptive sensory attributes in cheddar cheese

Ngày tải lên : 03/04/2013, 21:06

... butyrate, ethyl caproate, 1-octen-3-one, acetic acid, methional, propionic acid, butyric acid, valeric acid, caproic acid, capric acid and lauric acid Consumer Acceptability Signiﬁcant differences ... ATTRIBUTES OF CHEDDAR CHEESES AGED 7, AND 12 MONTHS acid, ” and “earthy,” “pungent,” “prickle bite,” “bitter” and “sour.” Young et al (2004), characterized the ﬂavor attribute terms of 1-, 2- and 4-month-ripened ... evaluation of Cheddar cheese (Murray and Delahunty 2000; Drake et al 2001), and the majority of them had greater than 100 h of training regarding the evaluation of dairy products Food and chemical...

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Biological Alteration of Zinc Complexation Characteristics of Dissolved Organic Matter in Domestic Wastewater Treatment Plant Effluent under River Water Environment

Ngày tải lên : 05/09/2013, 10:15

... Interpretation of titration data with Scatchard linear transformation (a) oneligand case (b) two-ligand case; K1' and K2' represent the conditional stability constants of strong and weak ligand, respectively; ... Furumai H., Kasuga I and Kurisu F (2010) Comparison of Metal (Zn and Cu) Complexation Characteristics of DOM in Different Urban Wastewaters, Water Sci and Technol., (in press) Cheng T and Allen H E ... Chaminda et al (2010) and in the Appendix of this paper RESULTS AND DISCUSSION Biodegradability of zinc binding sites in river water DOM Fig represents the variation of DOC, UV254 and SUVA during the...

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Influence of Phosphorus Concentration on the Biodegradation of Dissolved Organic Matter in Lake Biwa, Japan

Ngày tải lên : 05/09/2013, 10:17

... investigated the behavior of humic substances and other DOM and implied that the increase in CODMn was attributed to the contributions not only of humic substances but also of hydrophilic acids These reports ... biodegradation of DOM and discussed the possibility of pathway (4) to happen in the northern basin of Lake Biwa MATERIALS AND METHODS Materials Lake Biwa water was sampled from a depth of 60 m at ... is also shown in Fig and the constants of the obtained regression lines and the coefficient of determination are summarized in Table The simultaneous addition of phosphorus and the treated secondary...

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DOES MOTHER’S EDUCATION MATTER IN CHILD’S HEALTH? EVIDENCE FROM SOUTH AFRICA doc

Ngày tải lên : 14/03/2014, 11:20

... father of child is absent; number of siblings and the quality of the house they live in captured by number of rooms, household usage of electricity, usage of tap water and availability of a toilet ... row vector P and Ci is a vector of observable child and household characteristics such as father’s education; usages of health facilities; gender of child, race and age of child; age of mother; ... household income, number of siblings and the quality of the house they live in captured by number of rooms, household usage of electricity and tap water; and availability of a toilet The second...

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Controls of bioavailability and biodegradability of dissolved organic matter in soils

Ngày tải lên : 15/03/2014, 23:22

... the stabilisation and destabilisation of soil organic matter, and thus, in C dynamics and C pools of soils Sollins et al (1996) present a conceptual model of SOM stabilisation and destabilisation ... amounts to less than 20% of total DOC in soil solutions (Vance and David, 1991; Qualls and Haines, 1992; Guggenberger and Zech, 1993; Guggenberger et al., 1994; Andersson and Nilsson, 2001; Kaiser ... inhibiting effects of Al and Fe on citrate mineralisation only at molar ratios of at least 0.97 and suspect that this is likely due to precipitation of metal oxides and subsequent sorption of their organic...

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Effect of chlorine on adsorption ultrafiltration treatment for removing natural organic matter in drink2

Ngày tải lên : 16/03/2014, 00:07

... different surface structures and functionalities Analyses of the effects of chlorination of raw water during adsorption and UF could also establish some correlation of NOM removal and membrane permeability ... T.-W Ha et al / Journal of Colloid and Interface Science 274 (2004) 587–593 The comparison of sorption behavior between PAC and IOP would help understand the characteristics of adsorbents with different ... tests The UF membranes used in this study was made of polyethersulfone and had a molecular weight cutoff of 100,000 and an effective surface area of 28.7 cm2 All the membranes used were initially...

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Báo cáo hóa học: " Soft-In Soft-Output Detection in the Presence of Parametric Uncertainty via the Bayesian EM Algorithm" ppt

Ngày tải lên : 23/06/2014, 00:20

... Figure 11: BER performance of the ST-OFDM BEM receiver LDPC coding, NR = 1, and K = of the ST-OFDM BEM and that of the EM algorithm derived in [54] are comparable, the use of the former should be ... the Department of Information Engineering of the University of Pisa From 1998 to 2001, he held the position of Associate Professor of telecommunications at the University of Modena and Reggio Emilia ... with CE ST-OFDM BEM Figure 9: BER performance of the ST-OFDM BEM algorithm without outer coding NR = and K = Eb /N0 10 12 ST-OFDM BEM, iter ST-OFDM BEM, iter Figure 10: BER performance of the ST-DFDM...

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Báo cáo khoa học: "Initial mineralization of organic matter in a forest plantation soil following different logging residue management techniques" pps

Ngày tải lên : 08/08/2014, 14:21

... of N to plants and export of N in both the short and long term In Northern Spain, commercial forest plantations make up more than 30% of the land area The plantations are highly productive, and ... robur and Castanea sativa The stocking was 350 trees ha–1 and the mean DBH (diameter at breast height), 31.8 cm Analysis of needles revealed a deficiency of P and low concentrations of N and Mg ... C.M., Smith C.T., Microbial biomass C and N, and mineralizable-N, in litter and mineral soil under Pinus radiata on a coastal sand: influence of stand age and harvest management, Plant Soil 175...

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Báo cáo lâm nghiệp: "Allocation of dry matter in Eucalyptus in response to nitrogen supply grandis seedling" ppsx

Ngày tải lên : 09/08/2014, 04:20

... describe effects of environmental variables or silvicultural treatments on growth and allocation of dry matter by analysis of shoot/root ratio (mass of top/mass of root) but use of this ratio has ... nutrition and growth of plants Scand J For Res 1, 439-453 Ledig F.T (1983) The influence of genotype and environment on dry matter distribution in plants In: Plant Research and Agroforestry (Huxley ... influences on allocation of dry matter, among leaf, stem and root components in woody perennials, and nutrient effects are so omission of this variable compromise results complex profound that will seriously...

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