The phrase 'plain bottle' is correct and usable in written English.
You can use it when referring to an ordinary, unremarkable bottle or a bottle without any decorations or patterns. For example: "She filled the plain bottle with lemonade."
The samples of blood were put in a plain bottle.
Serum obtained from clotted blood was placed into the plain bottle after clot retraction and centrifugation at 25,000 rpm for five minutes using a bench centrifuge.
A peripheral venous blood sample (0.5-1.0 0.5-1.0 taken into a plain bottle prior to the admlnistration of antibiotics and transported routinely to the laboratory.
Three milliliters of fasting blood was taken into plain bottle for blood chemistry (lipids) -total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C) and triglycerides (TGs).
The blood collected in plain bottle without an anticoagulant system was centrifuged at 5,000 rpm for 10 minutes, the precipitate discarded and the serum obtained was utilised for protein carbonyl determination.
Presented initially in plain bottles, Gonzalez said her firm planned to develop more distinctive packaging to market the colognes both in Cuba and overseas.
Her lack of packaging was anti-waste - customers should return the plain bottles to be refilled; if she huckstered anything, it was the history of the ingredients and the anthropology of their cultivators.
Serum was harvested into plain bottles from the coagulated blood by centrifugation at 3000 rpm for 15 min.
Aircoft has even done some detective work on where the plain bottles with "Cloud Nine" on them come from.
Half a milliliter of venous blood was collected in plain bottles and centrifuged.
The blood samples were collected into EDTA and plain bottles and the collected blood was subsequently inverted gently for mixing.
