Ví dụ về việc sử dụng Buffer solutions trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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Summary of Characteristics of buffer solutions.
However, buffer solutions may be prepared to maintain a pH near 7.
Ammonium chloride solutions with ammonia are used as buffer solutions.
To obtain accurate results, standard buffer solutions and samples should be measured at the same temperature.
To calibrate a pHmeter for hydroponics we generally need two different buffer solutions.
This will be a ton cheaper than buying buffer solutions and will allow you to prepare solutions whenever you need them.
It is a tribasic salt which can be used as a food additive orto form buffer solutions in water.
It is useful in buffer solutions that resemble the environment in living cells[2] where calcium ions are usually at least a thousandfold less concentrated than magnesium.
The pKa of protonated triethylamine is 10.75,[4]and it can be used to prepare buffer solutions at that pH.
To do this it is normallyrequired to buy somewhat expensive pH buffer solutions that will just endure for a comparatively small while before new solutions have to get bought.
To make buffer solutions in less-than-ideal conditions we need to have a calibrated pH meter, which means you will need to purchase some buffer solutions, but only once.
It is extensively used in biochemistry andmolecular biology as a component of buffer solutions such as in TAE and TBE buffers, especially for solutions of nucleic acids.
This is generally done by measuring different buffer solutions with standardized, well-defined values, and then adjusting the pH meter based on any deviations from the buffer's known pH value.
You can actually calculate the exactamount of chemicals you need to add to create these buffer solutions but this assumes that your water source is very pure(distilled water) and that your chemicals are also very pure and standardized.
It is a white to pale yellow,non-hygroscopic powder that is practically insoluble in water and buffer solutions in a wide pH range, but is soluble in lipophilic solvents such as acetone, acetonitrile, butanone, dichloromethane, and tetrahydrofuran.[15].
Buffer solution 45 pipes 0.8ml/pipe pH7.4 HEPES buffer solution.
Dukoral® is administered with a buffer solution that, for adults, requires 150 ml of clean water.
It is also used for buffering solutions to slightly alkaline pH during chemical purification, such as HPLC.
This illustrates that reaction conditions in vitro(buffer solution) are quite different from in vivo(complex environment).
The buffer solution is water for injection(up to 100 ml), sodium dihydrogen phosphate(0.96 g), sodium hydrogen phosphate(1.59 g).
Additional substances: sodium chloride, propylene glycol, edetate disodium,hydrochloric acid and buffer solution consisting of sodium hydroxide, potassium dihydrophosphate and injectable water.
While TSP is not toxic per se,it is severely irritating to gastric mucosa unless used as part of a buffered solution.
They do not require a buffer solution for administration, which makes them easier to administer to large numbers of people in emergency contexts.
Once you have calibrated your pH meter guarantee that the pH metermeasures the precise value that you need to prepare within the buffer solution you have bought.
The attending medical practitioner will remove any causative agents, such as medications,treat with buffering solutions if acidosis is present, and treat the underlying condition with the necessary medication.
So make sure that the pHmeter when placed in the pH 7 buffer solution measures 7 if this the solution you want to prepare and make sure it measures 4 when placed in the pH 4 buffer solution if this is what you want to make.