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(For the preparation of ethidium bromide adds 1 g of ethidium bromide to 100 ml of H 2 O. Stir on a magnetic stirrer for several hours to ensure that the dye has dissolved. Wrap the container in aluminum foil or transfer the 10 mg/ml solution to a dark bottle and store at room temperature.) ... Apply a voltage of 1-5 V/cm (measured as the ...
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An evaporating dish is a piece of laboratory glassware used for the evaporation of solutions and supernatant liquids, and sometimes to their melting point.Evaporating dishes are used to evaporate excess solvents – most commonly water – to produce a concentrated solution or a solid precipitate of the dissolved substance.
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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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In humans, metabolism is typically measured in Calories per day. A nutritional calorie (Calorie) is the energy unit used to quantify the amount of energy derived from the metabolism of foods; one Calorie is equal to 1000 calories (1 kcal), the amount of …
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It is ideal to add the weighed quantity of BSA to the solution and keep it for mixing at 4 degree Celsius at a low speed to avoid clumping and frothing in a magnetic stirrer.
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Jan 06, 2022 (3) Magnetic stirrer for use under the heating mantle (combination magnetic stirrer and hotplate may be used if aluminum block is used in place of heating mantle). (4) Variable-voltage transformer, 7.5 amperes. (5) Tetrafluoroethylene-resin-coated stirring bar, 1-inch long. (6) Constant temperature water bath maintained at 25 deg.C+/-0.5 deg.C.
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magnetic stir bar is added before heat is applied to the distillation flask. The irregular chips provide sites for bubbles of vapor to form, or alternatively the liquid is agitated with the magnetic stirrer as it is being heated. Never add a boiling chip or a stir bar to a hot liquid! Doing so can ... the measured boiling point will be low.
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Magnetic Stirrer; Stir Bar; 100ml Graduated Cylinder (optional for pH measurement) After calibrating your meter with the buffers, rinse the electrode(s) and glassware with distilled or deionized water. Carefully measure 100 ml of your sample and place in a 150 ml beaker for the pH and alkalinity part. Place the rinsed electrode in the test sample.
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Mar 24, 2015 Nitrite (A) and ammonia (B) concentrations were measured in LMRS media after 24 h growth at 2% O 2 with supplementation of different nitrate concentrations (0 to 10 mM). Similarly in (C) and (D) nitrate was fixed at 5 mM and we measured nitrite and ammonia dependence on oxygen concentrations (0, 2, 4, 6, 10 and 21%).
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Nov 10, 2015 Lab5 determination of hardness of water 1. Jordan University of Science and Technology Faculty of Engineering Civil Engineering Department CE 453 “Environmental lab” “Determination Of Hardness of water” Experiment (5) …
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previously weighed water. Start the stirrer motor, and adjust the speed to obtain vigorous stirring without splashing. Record the temperature of the water in the polystyrene cup just prior to adding the sample of potassium nitrate (next step). This is the initial temperature, Ti. 5.
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Rotary torque sensor can measure static torque and dynamic torque, non-contact with two shafts and shaft keys. The electrical signal of elastic shaft under torsion can be measured by providing power for the strain gauge bridge. Shaft torque sensors have a capacity range from 50 Nm, 100 Nm, 500 Nm to 50000 Nm.
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