Yesterday, Lebe was asked "What is accuracy, what is accuracy?", and Lebe was asked to be speechless at the moment... So Lebe today wants to understand these two words with everyone.
Accuracy is the proximity between the measured results you get and the actual values, expressed as errors. Generally used to indicate the size of the systematic error. The degree to which the measured value is close to the true value is called the accuracy, and the difference between the two is called the error. The common error of the accuracy indicates that the smaller the error, the higher the accuracy of the analysis result. Accuracy is determined by systematic and accidental errors, indicating the correctness of the measurement results.
Precision refers to the reproducibility between the results obtained by repeated measurements using the same spare sample. The high accuracy of the measurement means that the systematic error is small. At this time, the average value of the measured data deviates from the true value, but the data is scattered, that is, the size of the accidental error is not clear. The measurement accuracy (also often referred to as precision) is high, which means that the accidental error and the systematic error are relatively small. At this time, the measurement data is concentrated near the true value.
In actual work, the control test is usually carried out by standard materials or standard methods. In the absence of standard materials or standard methods, the pure substances added to the components to be tested are usually subjected to a recovery test to estimate and determine the accuracy. When the error is small, the average value of the multiple parallel measurements can also be used as an estimate of the true value μ. Good measurement accuracy is a prerequisite for ensuring good accuracy. Generally speaking, if the measurement accuracy is not good, it is impossible to have good accuracy. For an ideal analytical method and analysis results, both good accuracy and good accuracy are required. However, sometimes high accuracy may indicate high accuracy, but accurate results may be inaccurate. For example, I used the same ika pipette to draw 1ml, 5ml, 10ml of water, and then weighed separately. Comparing with the actual weight of 1 ml of water, three values ​​were obtained. If the results of these three values ​​are consistent, then the data is prepared, and the accuracy of the ika pipette is very high. However, if there is an error in the result, but within the error range of the pipette, then only the accuracy of the ika pipette can be obtained , but the accuracy of the data is not high.
Ika pipette manual pipette adjustable range pipette single channel pipette 10-100ul
I don't know if after Leba 's explanation, did you distinguish the difference between the accuracy and accuracy of the ika pipette and the relationship between them?
Many people use Lishida Mirin Sauce when they are cooking fish,meat and vegetables. Also,it's usually used for making the sauce of noodles and dipping sauce.We select high quality ingredients,so that it can remove the fishy flavour and enhance the fresh and the appearance of cuisines.
We have passed Quality System Certificate,ISO9001 System and HACCP System Certificate,to make sure the safety and high quality.
We accept consigned OEM business for well-known brands all over the world.We are looking forward to your contact!
Mirin Spice,Mirin Soy Sauce,Mirin Sauce For Stir Fry,Japanese Mirin Sauce
KAIPING CITY LISHIDA FLAVOURING&FOOD CO.,LTD , https://www.lishidafood.com