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Standard operating procedure for soil organic carbon ...

Standard operating procedure for soil organic carbon ...

3. Principle The determination of soil organic carbon is based on the Walkley & Black chromic acid wet oxidation method. Oxidizable organic carbon in the soil is oxidised by 0.167 M potassium dichromate (K 2 Cr 2 O 7) solution in concentrated sulfuric acid. The heat of reaction raises the temperature which is sufficient to induce substantial ...

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Autoclave - Wikipedia

Autoclave - Wikipedia

An autoclave is a machine used to carry out industrial and scientific processes requiring elevated temperature and pressure in relation to ambient pressure and/or temperature.Autoclaves are used before surgical procedures to perform sterilization and in the chemical industry to cure coatings and vulcanize rubber and for hydrothermal synthesis. ...

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Bicinchoninic Acid Assay - an overview | ScienceDirect Topics

Bicinchoninic Acid Assay - an overview | ScienceDirect Topics

Bicinchoninic acid (BCA) assay or Smith assay is a copper-based colorimetric assay for total protein quantification. BCA rely on the formation of a Cu 2 +–protein complex in a basic environment, followed by reduction of the Cu 2 + to Cu + (Smith et al., 1985).The amount of Cu 2 + that is reduced is proportional to the amount of protein present in solution.

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Configurable batch Single-Use-Bioreactor - CerCell

Configurable batch Single-Use-Bioreactor - CerCell

Customized Bioreactor. Let’s design your preferred Single-Use-Bioreactor (SUB). No standard SUB will satisfy your needs anyway! Out of 5.000 different parts it should be possible to assemble a CerCell design specifically for you.

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Capp Denmark. Pipettes, tips, centrifuges, liquid handling.

Capp Denmark. Pipettes, tips, centrifuges, liquid handling.

Information Provided as Mandated by Article 13 GDPR If this is your first interaction with us, Art. 12, 13 GDPR mandates that we make available to you the following mandatory data protection related information: If you are contacting us via e-mail, we will process your personal data only if we have a legitimate interest in the processing of this data (Art. 6 Sect. 1 lit. f GDPR), if you …

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How to Make Phosphate Buffered Saline (PBS) - ThoughtCo

How to Make Phosphate Buffered Saline (PBS) - ThoughtCo

Jun 02, 2019 Phosphate buffered saline (PBS) is a buffer solution that's commonly used for immunohistochemical (IHC) staining and it's often used in biological research. PBS is a water-based salt solution containing sodium hydrogen phosphate, sodium chloride and, in some cases, potassium chloride and potassium dihydrogen phosphate.

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Lactophenol Cotton Blue Staining Principle, Procedure, Result.

Lactophenol Cotton Blue Staining Principle, Procedure, Result.

Jun 23, 2020 Principle of Lactophenol cotton blue Staining. Lactophenol cotton blue is used in medical mycology for the examination of fungal cell structure, by preparing a wet mount. It is composed of two most important components such as methyl blue and lactophenol.

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Mark Scheme (Results) January 2014 - Edexcel

Mark Scheme (Results) January 2014 - Edexcel

Mar 06, 2014 Mark Scheme (Results) January 2014 International GCSE Physics (4PH0) Paper 2P Edexcel Level 1/Level 2 Certificates Physics (KPH0) Paper 2P

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Lab5 determination of hardness of water - SlideShare

Lab5 determination of hardness of water - SlideShare

Nov 10, 2015 When all the Mg+2 and Ca+2 are complexed with EDTA, the indicator will turn blue. This is the end point of the titration. In the other hand it’s easily to remove carbonate hardness by boiling while it needs chemical reactions to remove the non-carbonates hardness Hardness determination is based on the principle of chelation.

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Required Practical 9 (8.1.3) | AQA A Level Chemistry ...

Required Practical 9 (8.1.3) | AQA A Level Chemistry ...

Steps in the procedure. Measure out 50 cm 3 of 1.0 mol dm-3 ethanoic acid using a measuring cylinder and transfer it to a 200 cm 3 beaker; Place the beaker onto a magnetic stirrer and add a magnetic stirrer bar; Position the pH probe so that it does not …

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STIR | meaning in the Cambridge English Dictionary

STIR | meaning in the Cambridge English Dictionary

stir definition: 1. to mix a liquid or other substance by moving an object such as a spoon in a circular pattern…. Learn more.

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Iodine Value Determination Procedure

Iodine Value Determination Procedure

The iodine value of oil, also known as the iodine number, is a measure of the degree of unsaturation of fat, wax, or oil; it is measured in grams as the amount of iodine absorbed by 100 grams of fat, wax, or oil.

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The Physics of Microwave Ovens - Toby Zerner

The Physics of Microwave Ovens - Toby Zerner

The principle of heating food in a microwave oven is based on a molecule’s ability to rotate. This imposes certain limitations on the types of foods that can be heated. For example, ice is a solid and so its molecules cannot rotate as easily as in liquid water.

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BOILING POINT DETERMINATION - Faculty of Science

BOILING POINT DETERMINATION - Faculty of Science

The stirrer bar is important to avoid “bumping” of hot liquid Set up and use apparatus in a fumehood The sample liquid (approx. 0.5 mL) is introduced into a 150mm diameter test tube using a Pasteur pipette and a small magnetic stirring bar is …

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Calorimeter - Definition, Uses, Types, Application, Diagram

Calorimeter - Definition, Uses, Types, Application, Diagram

To know the understand the calorimetry principle thoroughly, click on the link: Principle of Calorimetry. Uses of Calorimetry. It is well known now that matter always obeys the principle of lowest energy ie given the option, the matter will exist in the lowest energy state possible. Despite this, the matter can have a variety of energetic states.

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ASTM D6304 | Standard Test Method for Determination of ...

ASTM D6304 | Standard Test Method for Determination of ...

Turn on the apparatus and start the magnetic stirrer for a smooth stirring action. Allow the residual moisture in the titration vessel to be titrated until the end point is reached. Do not proceed beyond this stage until the background current (or background titration rate) is constant and less than the maximum recommended by the manufacturer ...

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