In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

[Q]: Question: Liquid chromatography using linked stationary phases can be divided into normal phase and reverse phase phases. In this context it can be said that: 
 Options:  <0> The main separation mechanism in reverse phase is the distribution, while adsorption also plays a very important role in the normal phase. <1> In normal phase chromatography, a large number of non-polar stationary phases can be used. <2> The main separation mechanism in normal phase is the distribution, while the adsorption plays a very important role in the reverse phase. <3> In reverse phase chromatography, the stationary phase is polar and the non-polar eluents. <4> In reverse phase chromatography, a large number of polar stationary phases can be used.
[A]: chemistry


[Q]: Question: The gesture imitation test (Berger and Lézine, 1975) is an evaluation tool that is used in childhood, preferably to evaluate: 
 Options:  <0> Laterality <1> The body schema <2> Neural efficiency <3> Muscle tone <4> The motor.
[A]: psychology


[Q]: Question: It is very common the use of rotary valves of 6 doors or routes, alternately switchable, for the injection of samples in liquid chromatography of high resolution. Which of the following answers is correct? 
 Options:  <0> In the injection position, the mobile phase flow is maintained towards the column without passing through the loop. <1> In the loading position, the loop in charge of housing the sample remains open to the atmosphere whereby the sample can be deposited by means of a syringe. <2> In the loading position, the mobile phase flow is maintained towards the column by previously passing through the loop. <3> In the loading position, the sample is inserted into the column without disturbing the moving phase step towards the loop. <4> In the injection position, the entire internal volume of the loop is directed to the waste while the mobile phase carries the sample.
[A]:
chemistry


