What are the differences in the definition of pipettes, pipettes, and content pipettes?
In terms of specifications: Because the pipette has only a few fixed specifications, its use is limited. The pipette can be measured at will, so it is widely used. It also depends on the accuracy required by your experiment. Generally, you can choose a suitable pipette for analytical experiments. The commonly used pipettes have specifications of 1ml, 2ml, 5ml, 10ml, 15ml, 25ml and 50ml, etc., and are necessary measuring instruments for quantitative experiments.
On the scale: the pipette has a full scale, and the pipette only has a full scale. Pipettes are prone to errors during operation. The pipette is a one-time operation with less error. Commonly used straws are 1ml, 2ml, 5ml, 10ml and other specifications.
In terms of accuracy: a pipette with a scale is called a pipette, a glass tube is called a pipette, or a single standard pipette. The pipette is more accurate than a pipette. Especially when using a graduated pipette with a volume of 20 or 25 ml of solution, the error must be taken several times! Get it all in one go with a pipette!
Measure out and measure in: Pipettes are used to accurately remove a volume of solution. A pipette is a meter-out instrument used only to measure the volume of solution it emits. The pipette is a straight glass tube with a scale to know the volume of the liquid being measured. According to JJG196-2006, the type mark on the pipette: measuring type: In; measuring type: Ex; blowing type: Blow out.
A pipette is a precise pipette, which is more complicated to use; a pipette is a coarse pipette, which is simpler to use. So labs need to use them in different situations.
The use of pipettes is limited because they are available in a few fixed sizes. The pipette can be measured at will, so it is widely used. It also depends on the accuracy required by your experiment. Generally, you can choose a suitable pipette for analytical experiments. Named according to current regulations:
Learn more: content volume pipettes
The internal volume pipette means that the volume of all the liquid in the pipette is the same as the scale. A typical pipette scale is marked by the volume of "flowing out" liquid. This type of pipette is suitable for normal, less viscous solutions.
For liquids with high viscosity, because the inner wall of the tube has a lot of residues, the scale marked on the tube is generally the entire volume in the tube. Generally, the inner wall of the pipette is rinsed with a solvent after aspiration, so the volume indicated by the graduated volume of the pipette is slightly smaller than the commonly used "external volume" formula.
The internal volume pipette is an ordinary pipette, the difference is that the former is a measuring-in operation and the latter is a measuring-out operation. The correction value needs to be recorded and added to the calculation. Commonly used for sampling viscous samples. After sampling, wash and transfer with an appropriate amount of solvent.