The phrase "added as per" is correct and usable in written English.
It is typically used to indicate that something has been included or incorporated according to specific instructions or guidelines.
Example: "The new features have been added as per the client's request to enhance user experience."
Alternatives: "included according to" or "added in accordance with".
The cleared supernatant was transferred to a fresh tube, and binding matrix added, as per manufacturer's instructions.
A statement from the UCI confirmed that Yates had been recorded as positive for Terbutaline but added: "As per the UCI's anti-doping rules, such [a] substance does not entail the imposition of a provisional suspension.
For liquefaction, the pH of the slurry was adjusted to 5.1 using 10 N sulfuric acid and 16 µL α-amylase was added, as per manufacturer's recommendations.
In brief, the cell lysate, buffer, enzyme, and the WST reagent were diluted, and the solution was added as per the protocol and incubated at 37 °C for 20 min and read at 450 nm on a microplate reader (Biotek, VT, USA).
Microbial fraction RNA samples were collected by filtering 200 ml of sample seawater onto 0.45 µm durapore filters (Millipore, www.millipore.com), placed in a 2 ml screw-cap tube with 750 µl of the first step lysis buffer from the RNeasy kit (RLT buffer, Qiagen, Valencia CA) with β-mercaptoethanol added as per manufacturers instructions and frozen at -80°C until sample extraction and processing.
The CellTiter 96 Aqueous One Solution was added as per the manufacturer's instructions.
A three-year license for math and English software added as much as $200 per device to the price tag, according to documents reviewed by The Times and people close to the bidding process.
You're unlikely to recoup the cost of fitting a fancy stove from the savings on your heating bill, but a "feature fireplace" can reportedly add as much as five per cent to the value of your home.
On the other hand MySpace has undergone massive headcount growth over the last two years, sometimes adding as many as 100 employees per month.
You can add as little as 2 tablespoons per egg white.
This threat may be adding as much as $5 to the $40 per barrel price.
