[PDF] Top 20 Determination of zinc in soil using colorimetry.
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Determination of zinc in soil using colorimetry.
... DETERMINATION OF ZINC IN SOIL USING COLORIMETRY. In terms of soil fertility, zinc is a micronutrient that is very important in the ... See full document
4
J. Braz. Chem. Soc. vol.27 número1
... for zinc, ...for zinc (using permanent Zr, 500 µg), ...the determination of iron and zinc in serum and hair is presented in Table ...Fe in serum and hair, ... See full document
8
Soil Erosion Determination in a Watershed from Northern Paraná (Brazil) Using
... strips of bare soil, that allowed the erosive process to take ...points in the pasture presented soil gain. The accumulation in A2 was due to this point being close to a contour line ... See full document
9
Determination of the distribution coefficient (kd) of benzo(a)pyrene in soil using sorption isotherms.
... dos modificaram sua estrutura adequando os parâmetros a suas neces- sidades. Em outros países, são utilizadas metodologias semelhan- tes à da ASTM-PS-104, baseando-se no mesmo conceito, porém com equações diferentes ... See full document
5
Methods of soil organic carbon determination in Brazilian savannah soils
... (54) soil samples were collected at 0-20 cm in areas representing sub-regions, soil types and the history of use and management in the Brazilian savan- nah (Cerrado) (Figure ...number ... See full document
7
J. Braz. Chem. Soc. vol.10 número1
... rapid determination of zinc(II) using an 8-hydroxyquinoline derivative, 7-(4-nitrophenylazo)-8-hydroxyquinoline-5-sul- fonic acid (p-NIAZOXS), as a new spectrophotometric ...and ... See full document
5
Flow injection spectrophotometric determination of aspartame in sweeteners using a solid-phase reactor containing zinc phosphate immobilized.
... (DM In- dústria Farmacêutica Ltda, Barueri, SP), Adocyl (Virtu’s In- dústria e Comércio Ltda, Santo Amaro, SP), Gold (Vepê In- dústria Alimentícia Ltda, São Bernardo do Campo, SP), Equal (Monsanto do ... See full document
6
LEAD AND ZINC IN THE STRUCTURE OF ORGANIC AND MINERAL SOIL COMPONENTS
... occur in the structure of minerals, and the sum of all these forms defines their total contents in different soil ...substitution of heavy metals for example alters the ... See full document
12
J. Braz. Chem. Soc. vol.22 número3
... for determination of copper, iron, lead and zinc in ...preconcentration of metals using a resin modified with 3,4-dihydroxybenzoic acid (XAD-DHB), followed by desorption with an ... See full document
6
WIND EROSION INTENSITY DETERMINATION USING SOIL PARTICLE CATCHER DEVICES
... with soil particle catcher ...directly in the terrain is more expensive and time demanding more than mathematical modeling but provides real ...measured soil loss with two measuring systems 40 m ... See full document
9
DETERMINATION OF HYDRAULIC PROPERTIES OF A TROPICAL SOIL OF HAWAII USING COLUMN EXPERIMENTS AND INVERSE MODELING
... Methods of direct measurement of hydraulic conductivity function are often based on the use of tension infiltrometers (Perroux & White, ...for in situ measurements of near-saturated ... See full document
12
COMPLEXOMETRIC TITRATION WITH POTENCIOMETRIC INDICATOR TO DETERMINATION OF CALCIUM AND MAGNESIUM IN SOIL EXTRACTS
... The determination method of exchangeable calcium and magnesium in soil extracts using Calcium Ion Selective Electrode and Complexometric Titration (ISE-CT) is accurate, precise and ... See full document
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Research Note:<br>Determination of soil hydraulic properties using pedotransfer functions in a semi-arid basin, Turkey
... In this study, for a loamy soil, field measurements of volumetric water content with respect to pressure head were obtained from a soil moisture probe with its data log[r] ... See full document
10
Conductivimetric determination of residual carbonate from lime amended soil using flow analysis.
... conductivimetry using a flow injection system. The results obtained by the proposed method were significantly correlated with those reported in soil samples used by the International Soil ... See full document
3
Glyphosate Determination in Soil, Water and Vegetables Using DPV Optimized by Response Surface Methodology
... presents in its structure a secondary amino group that, when treated with nitrous acid, is converted to an N-nitro group ...its determination by voltammetric strategies ...possibility of applying ... See full document
13
Stabilization of zinc-contamined soil using zeolites synthesized from coal ashes.
... capacity of the soil and reduced leaching. Zinc leaching was reduced by more than 80% using a minimum of 10% ...capacity of the zeolite/soil mixtures and higher pH were ... See full document
4
ISOTOPE DETERMINATION OF SULFUR BY MASS SPECTROMETRY IN SOIL SAMPLES
... (abundance) of light elements is frequently carried out using properly purified gaseous ...transformation in order to eliminate gas interferences, and the combustion process for SO 2 production ... See full document
7
J. Braz. Chem. Soc. vol.9 número6
... mination of trace amounts of copper and zinc in natural water samples, by Inductively Coupled Plasma Atomic Emission Spectrometry ...tion of copper(II) and zinc(II) ions by ... See full document
6
J. Braz. Chem. Soc. vol.17 número1
... μL of sample per ...matrix of soil components, so that samples have to be analyzed using matrix matching or standard addition ...advantages of the proposed CF-SWV over HPLC are the low ... See full document
7
J. Braz. Chem. Soc. vol.22 número11
... solution of 4 mL (34.6 mmol) of styrene and 22 µL (0.169 mmol) of EtBrP were prepared in air, and 3 mL of this solution was injected via syringe into the cylindrical ...KPa of ... See full document
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