The phrase "certain preparation" is correct and usable in written English.
It can be used when referring to a specific type of preparation that is necessary or relevant in a given context.
Example: "Before the event, we need to ensure that we have made certain preparations to accommodate all the guests."
Alternatives: "specific preparation" or "particular preparation."
Famous Dave's plans to tweak its menu to cater to local needs and find suppliers capable of providing Halal meat, which meets certain preparation guidelines and is acceptable under Islam's dietary requirements.
For DPPC dispersions by a certain preparation procedure at T > Tc, when lipid particles were observed on the surface, dynamic surface tensions as low as 1 mN/m were measured.
We consider a recently developed approach, called conformation-dependent sequence design, which is based on the assumption that a copolymer obtained under certain preparation conditions is able to 'remember' features of the original conformation in which it was built and to store the corresponding information in the resulting sequence.
The managers of the armed forces tend to increase the contingencies they wish to prepare for, while skeptical taxpayers tend to question whether certain preparations are absolutely essential.
The conscious mind makes certain preparations and maneuvers, and may afterward come up with certain explanations, but the important work of thought and creation is coming out of the unknowable.
If people can commit to certain preparations and modifications, they can ensure the best chance of their healthy old dog aging without pain into a very old one.
We note that determination of dephosphorylation kinetics in certain preparations of Maf1 was prevented by variable levels of a contaminating protease.
For example, in traditional Chinese medicine, mercury is part of certain preparations under the colloquial names of ' cinnabaris' (mercuric sulfide) and ' calomel' (mercurous chloride) [ 10].
These studies all indicate significant effects in body composition after perinatal exposure to PBDEs; however, the mechanisms remain unclear and the data should be interpreted with caution because certain preparations of BDEs could be contaminated with DL chemicals.
The elevated basal level of FSA observed for certain preparations of T-Ep cultures (L297 and L299; Figure 3A) was mainly attributable to a higher concentration of IL-1 β (data not shown).
In some cases, it is easy to comprehend why people would believe in the curative powers of certain preparations e.g., the use of faecal pellets of herbivorous animals which feed on plant species that are known to have medicinal properties.
