Aliquot is a known volume of liquid that represents a part of some larger volume. It is usually taken with a pipette from a measured flask.
Likewise, what is an aliquot of a sample?
Aliquot of a sample, in chemistry or the other sciences, an exact portion of a sample or total amount of a liquid (e.g. exactly 25mL of water) Aliquot in pharmaceutics, a method of measuring ingredients below the sensitivity of a scale by proportional dilution with inactive known ingredients.
Similarly, what is meant by the aliquot portion method? An aliquot is a factor of a whole amount, meaning that when you divide the factor into the amount, there is no remainder. In the chemical and pharmaceutical industries, the aliquot method refers to measuring out a small amount of a chemical or drug by dividing up, or diluting, a larger amount.
Similarly, it is asked, why do we need to calculate aliquot?
Besides functioning as a technique used to separate a larger sample into smaller parts, aliquoting plays a very important role in the temperature sensitivity of substances. For example, in chemistry, some substances can rapidly decompose (or deteriorate) when exposed repeatedly to variable temperature environments.
What does it mean to aliquot something?
The definition of aliquot is of a part of medicine or chemicals, or a number that divides another number evenly. An example of something aliquot is a part of penicillin. An example of something aliquot is the number 2 to the number 6.
How do you determine concentration?
The standard formula is C = m/V, where C is the concentration, m is the mass of the solute dissolved, and V is the total volume of the solution. If you have a small concentration, find the answer in parts per million (ppm) to make it easier to follow.
What is aliquot in lab testing?
When a drug or alcohol test is performed, a specimen such as blood, saliva, or urine is taken from the test subject. An aliquot, or measured portion of that specimen, is then used to perform the actual testing. The aliquot portion serves as a representative sample of the specimen as a whole.
How do you do aliquot method?
Aliquot means containing an exact number of times in something else or when you divide the factor into the amount, there is no remainder. In pharmacy, the aliquot method refers to measuring out a small amount of a chemical or drug by diluting a larger amount, making the needed quantity measurable.
How do you calculate dilution factor?
- The final volume is equal to the aliquot volume PLUS the diluent volume: 0.1 mL + 9.9 mL = 10 mL.
- The dilution factor is equal to the final volume divided by the aliquot volume: 10 mL/0.1 mL = 1:100 dilution.
How do you effectively deliver an aliquot?
The aliquot was delivered by placing the pipette tip on the side of a glass vial at a 45° angle just above the meniscus and slowly depressing the plunger past the first stop to deliver the entire aliquot.
What do you mean by dilution?
Definition of Dilution. Dilution is the process of reducing the concentration of a solute in solution, usually simply by mixing with more solvent. Example 1: You can add water to concentrated orange juice to dilute it until it reaches a concentration that is pleasant to drink.
What is an aliquot of a sample quizlet?
Aliquot. a measured sub-volume of original sample. Diluent. material with which the sample is diluted.
What is minimum Weighable quantity?
Weighing. Similarly, we can calculate the smallest quantity that can be weighed, on a balance of known sensitivity, to maintain a desired level of accuracy. This weight is referred to as the least weighable quantity (L.W.Q.).
How can calculate percentage?
1. How to calculate percentage of a number. Use the percentage formula: P% * X = Y
- Convert the problem to an equation using the percentage formula: P% * X = Y.
- P is 10%, X is 150, so the equation is 10% * 150 = Y.
- Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.
What is the drop factor for a burette?
There are a number of different drip factors available in clinical practice, however the commonest are: 10 drops per ml (blood set). 15 drops per ml (regular set). 60 drops per ml (burette, microdrop).
How do you calculate drug concentration?
Amount of drug = dose. Desired concentration = target concentration (mean or average) in sampled fluid. Volume = the volume of sampled fluid in which the drug is distributed.
How many tablets should you dispense?
The total quantity to be dispensed is 30 tablets as stated by the doctor. Assuming 3 meals per day, the patient may use up to 6 tablets per day. Then, the total days supply will be 30 divided by 6 which is 5 days.
What is analyte in chemistry?
An analyte, component (in clinical chemistry), or chemical species is a substance or chemical constituent that is of interest in an analytical procedure.