What is aliquot mass?
An aliquot is a factor of an entire sum, implying that when you isolate the factor into the sum, there is no leftover portion. In the compound and pharmaceutical enterprises, the aliquot technique alludes to allotting a modest quantity of a substance or medication by splitting or weakening, a more significant sum.
What is the aliquot in chemistry?
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 25 mL of water taken from 250 ml) Aliquot in pharmaceutics, a method of measuring ingredients below the sensitivity of a scale by proportional dilution with inactive known ingredients.
What is aliquot dilution?
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.
What is an aliquot example?
adjective. Aliquot means a part of a chemical or medicine, or a number that evenly divides another number. An example of an aliquot is a portion of DayQuil. An example of an aliquot is the number 4 to the number 16. noun.
What is an aliquot in a titration?
During a titration, aliquots of the titrant are added in a stepwise fashion to the analyte (or unknown) solution. Why do we call the titrant an aliquot? They are small amounts of a larger solution (either acid or base) that are added incrementally, one amount at a time, to the analyte solution.
What do you mean by aliquot?
Definition of aliquot 1 : contained an exact number of times in something else —used of a divisor or part 5 is an aliquot part of 15. an aliquot portion of a solution. 2 : fractional an aliquot part of invested capital.
How aliquot method is used?
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.
What is an aliquot of a sample quizlet?
Aliquot. A portion of well mixed sample removed for testing. Anticoagulant. Chemicals added to a blood sample after collection to prevent clotting.
Why do we aliquot?
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.
Why do we need to aliquot?
Specimen may need to be aliquoted for the following reasons: a. Plasma is the required specimen b. There is no gel separator to separate the serum/plasma from the cells c. Stability requires this done before transporting to the laboratory.
What is a dilution factor quizlet?
The dilution factor is the final volume divided by the aliquot volume: 10mL/0.1mL = 100 -> 1:100 dilution (10^2) 1.
Is formed in the liver and used to prevent coagulation quizlet?
Heparin is formed in the liver. The purpose of heparin is to prevent coagulation. The three types of heparin are ammonium, sodium and lithium.
What is the dilution factor if you add 0.1 ml aliquot of a specimen to 9.9 ml of diluent?
What is the dilution factor if you add 0.1 ml aliquot of a specimen to 9.9 ml of diluent? 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 calculate serial dilutions quizlet?
Determine the dilution factor for each tube in the dilution series. Multiply the individual dilution factor for the tube and all previous tubes. 1ml added to 9ml = 1/10 (2nd tube) X previous dilution of 1/10 (1st tube) = total dilution of 1/100 for 2nd tube.
What is a dilution blank?
Dilution Blanks are a buffered mineral salt base solution with reducing agents, designed as a holding medium for maintaining viability of microorganisms, especially anaerobes, in order to determine the number of viable organisms present in a sample.
What is the single most important step in venipuncture?
1. Planning ahead. This is the most important part of carrying out any procedure, and is usually done at the start of a phlebotomy session.
What agent causes coagulation?
Coagulating agents like rennet, and in some cases, a food-grade acid help in setting milk into curd and whey.
Which of the following is the least hazardous area of an infant’s foot for capillary puncture quizlet?
c. microtainer. T or F heel sticks on infants should be more than 2.4 mm deep. T or F the least hazardous area of an infant’s foot on which to perfrom skin puncture is the arch.
What is the formula for calculating dilution factor?
What is the dilution if you add 0.2 mL of a stock solution to 3.8 mL of diluent?
This is a 1:10 dilution. What is the dilution factor if you add 0.2 mL of a stock solution to 3.8 mL of diluent? DF=ViVf = 0.2mL4.0mL=120 . This is a 1:20 dilution.
How do you calculate dilution ratio mL?
Multiply the final desired volume by the dilution factor to determine the needed volume of the stock solution. In our example, 30 mL x 1 ÷ 20 = 1.5 mL of stock solution. Subtract this figure from the final desired volume to calculate the volume of diluent required–for example, 30 mL – 1.5 mL = 28.5 mL.
What is dilution factor in chemistry?
What is dilution factor? The dilution factor (or dilution ratio) is the notation used to express how much of the original stock solution is present in the total solution, after dilution. It often given as a ratio, but can also be given as an exponent, however, this calculator will only show it as a ratio.
Why would you do a serial dilution quizlet?
Why are serial dilutions done? to determine “How many bacteria are present in a specific sample size?” and They are used to dilute a substance into a desirable concentration for use.
How do you calculate CFU g from dilution?
- To find out the number of CFU/ ml in the original sample, the number of colony forming units on the countable plate is multiplied by 1/FDF. This takes into account all of the dilution of the original sample.
- 200 CFU x 1/1/4000 = 200 CFU x 4000 = 800000 CFU/ml = 8 x 10.
- CFU/ml in the original sample.