"in the appropriate amount" is correct and can be used in written English.
It can be used to indicate that the right quantity or amount of something has been used for a given situation. For example: "The barista added the right amount of syrup to the latte, in the appropriate amount."
Once the depositor has put their paper money in, the appropriate amount of Bitcoins are delivered to the Bitcoin address linked to the scanned QR code.
In the recent past, few attempts have been made to enhance the thermal conductivity of PCM by mixing different additives in the appropriate amount.
The accuracy of the method was proven by using spiked solutions that were prepared by spiking in the appropriate amount of analyte of interest into the sample matrix and assayed using a standard.
The aqueous rare earth citrate solution was added to the aqueous tin citrate solution in the appropriate amount to obtain a doping level of 5 mol% in all cases.
Time management is the organization of tasks or events by first estimating how much time a task requires and when it must be completed, and adjusting events that would interfere with its completion so it is done in the appropriate amount of time.
Excess supernatant was removed and pellet was re-suspended in the appropriate amount of supernatant to give an HPV-16 VLP concentration of 0.2 µg/µL.
Some useful guidelines are also provided to aid users in deciding the appropriate amount of manpower for a particular application.
The infiltration consisted in adding the appropriate amount of Rh-B solution into an erlenmeyer flask containing 5 mg of hollow particles.
An easy to use phosphate counting program that assists the patient in determining the appropriate amount of phosphate binder to take may enhance phosphate control.
If the line passes through the achromatic point, the colours represented by its endpoints, when additively combined in the appropriate amounts, must form white; therefore, all lines passing through the achromatic point terminate on the closed curve in saturated complementary colours.
"In social situations, the appropriate amount to eat is often ambiguous, and internal signals (i.e., hunger and satiety) that one would expect to help guide food intake are often unreliable (Herman & Polivy, 2005).
