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Standardisation of caustic titrants (NaOH, KOH) with Potassium Hydrogen Phthalate
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Standardisation of caustic titrants suc as NaOH, and KOH with the volumetric standard reagent Potassium Hydrogen Phthalate.
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Determination of Sodium Hypochlorite
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Determination of sodium hypochlorite.thanksthanksthanksthanksthanksthanksthanksthanksthanks
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Determination of Sodium Bisulfite
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Determination of Sodium bisufite.thanksthanksthanksthanksthanksthanksthanks
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Saponification Number according to DIN 53 401
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Determination of saponification number in fats and oils, fatty acids, resins and different organic techn. solvents. The saponification number is expressed as the quantity of mg KOH that is required to saponificate 1 g of sample.
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Determination of H3PO4
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Potentiometric determination of H3PO4。thanksthanksthanksthanksthanksthanksthanks
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Determination of Copper and other metalls with EDTA Na2 (direct titration)
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Determination of the Copper (II) Ions with complexometric titration using a Cu-ion selective electrode. Other metalls (II) can be determine also with a addition of Cu-EDTA. The samples are normally buffered in a acetate- or ammonia buffer (pH 10). All metalls who form a lower stable metall EDTA complex than Cu-ETDA can be analysed with this method. That are e.g. Mg, Ca, Zn, Pb, Cd, Mn und Co2+.
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Standardization of the Karl Fischer reagents
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Standardization of Karl-Fischer reagents.thanks thanks thanksthanks
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Determination of Water according to KF in Potassium nitrate (free and bounded)
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Determination of water in Potassium nitrate according to Karl-Fischer. Using different solvent mixtures it is possible to distinguish the free and chemical bounded water.
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Water determination according to Karl Fischer in liquids
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Water determination according to Karl-Fischer using KF reagent for volumetric titration.
This method can be used for alcohols like methanol, ethanol or other organic liquids.
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Determination of water according to KF in CaCO3 (chalk and lime samples)
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Determination of water in chalk and lime samples (CaCO3) according to volumetrci KF titration.
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Water determination according to Karl Fischer in organic solvents
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Water determination according to Karl-Fischer using a single or a two component reagent and a equivalent solvent or solvent mixture for volumetric titration.
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Determination of Isocyanate groups/ NCO number
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This method is suitable for the determination of free Isocyanates in Polyurethane adhesive, Polyester, Polyurethan-Prepolymere, lacquer and in varitiation of the used solvents as generall method. The Isocyanates are reacted with an surplus of Diisobutylamine and titrated back with HCl.
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Determination of Iron with Ce(IV)-SO4 solution
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The application note describes the general determination of Fe (II) as a redox titration with Cer (IV)-sulphate solution.
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Determination of Hydroxy number
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This method is suitable for the determination of the hydroxy number in Polyurethane adhesive, Polyester, Polyurethan-Prepolymere, lacquer and in vartiation of the used solvents as general method.
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Determination of Hydrogen Peroxide
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Determination of hydrogen peroxide thanks thanks thaks thanks
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Potentiometric determination of Chloride/Sodium Chlorid
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Potentiometric determination of chloride/sodium by titroline alpha plus
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Total acid in wine and beverages
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Total acid means the amount of all titratable acids in wine or beverages. The method describe a potentiometric titration of carbon dioxid free sample to pH endpoint 7.0/8.1 using the autosampler TW alpha plus.
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Total Titratable Acidity (TTA) in beverages or flavoured sirup
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Total acid means the amount of all titratable acids in flavoured syrup or beverages. The method describe a potentiometric titration of carbon dioxid free sample to pH endpoint to 8.1.
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Determination of Free and Total SO2 in Wine and Beverages
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This application note descripe the usual titration procedure with Iodite/Iodate solution. Possible is also the titration with Iodine solution. The values in brackets are for the EN norm.
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Determination of Peroxide Number according to Wheeler
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The method describes the procedure for the determination of the peroxide number according to Wheeler. The procedure acording to Sully is the same titration type. The Sully method has only some different sample preparation steps. The results of both methods are not 100 % compareable.
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Determination of Water according to KF in spices
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Determination of water in spices such as pepper, chillie powder or paprika powder.
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Determination of Water according to KF in potato chips
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Determination of water in food stuf such as potato chips.
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Water determination according to Karl Fischer in vegetable oil
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Water determination according to Karl-Fischer using a single or a two component reagent and a equivalent solvent or solvent mixture for volumetric titration.
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Water determination according to Karl Fischer in honey
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Water determination according to Karl-Fischer using a single or a two component reagent and a equivalent solvent or solvent mixture for volumetric titration.
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Determination of Iodine Number according to Wijs DIN 53 241 Teil 1
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The method describes the procedure for the determination of the iodine number according to Wijs (without catalysator). The application is suitable for fats, fatty acids, oils and different organic solvents.
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Potentiometric determination of Chloride/Sodium chloride
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Potentiometric determination of chloride/sodium chloride in food samples such as salt, spice mixtures, cheese, meat or tomato sauce.
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Determination of Calcium in Milk
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Determination of the Calcium with complexometric titration using a Cu-ion selective electrode. All metalls who form a lower stable metall EDTA/EGTA complex than Cu-ETDA/EGTA can be analysed with this method. That are e.g. Mg, Ca, Zn, Pb, Cd, Mn und Co2+.
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Determination of Ascorbic Acid with Di-Chlorophenol - Indophenol
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Ascorbic acid reduce 2,6 di chlorophenol-indo phenol and is oxidized to dehydro ascorbic acid. This redox reaction can be followed with a platinium combination electrode.
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Determination of sulphate in potable and surface water using an ion-selective lead electrode
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Determination of sulphate by way of titration with lead perchlorate solution and, after the removal of disturbing cations using an acid ion exchanger, detection using an ion-sensitive lead electrode.
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Determination of the Permanganate Index (oxidability) according to ISO 8467
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The permanganate index (also referred to as oxidability) is a conventional parameter for the determination of the concentration of organic and oxidable inorganic matters in water. A water sample is mixed with a weight of potassium permanganate solution and heated up. A portion of the permanganate will be reduced by the oxidable matters contained in the sample. The consumption of permanganate is determined by the addition of a surplus of sodium oxalate solution and the subsequent titration using potassium permanganate. The procedure can be used for drinking water as well as swimming and bathing pool water. The lower application limit is 0.5 mg/l.
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