The phrase "a mixture of several" is correct and usable in written English.
It can be used when describing a combination of different elements, substances, or components.
Example: "The salad was a mixture of several fresh vegetables, including tomatoes, cucumbers, and bell peppers."
Alternatives: "a blend of various" or "a combination of multiple".
Like other members of the genus, F. graminearum produces a mixture of several mycotoxins, including deoxynivalenol (DON) that cause severe threats to human and animal health [ 3].
What seems to have happened is a mixture of several causes.
Chemically, lanolin consists of a mixture of several sterols, fatty acids, and their esters.
They are a mixture of several species and sub-species – a tribute to the elm's ability to hybridise and give Britain about 40 varieties.
The historical old town section of Lijiang city, which embraces a mixture of several cultural traditions, was designated a UNESCO World Heritage site in 1997.
Next, a mixture of several hundred pounds of saltpetre, charcoal, and sulfur is placed in a heavy iron device shaped like a cooking pan.
The chemical addition of chlorine to benzene produces a mixture of several stereoisomers of 1,2,3,4,5,6-hexachlorocyclohexane.
The oldest, most commonly used acid-base indicator, litmus, is a mixture of several oxazine derivatives, obtained by treating various species of lichens with ammonia, potash, and lime.
The fluorine, chlorine, hydroxyl, and carbonate substitute for one another, so in nature most apatite is a mixture of several of the compounds.
The pho recipe was a mixture of several I saw on the Web, but I used as my base this one from The Runaway Spoon.
Other techniques include writing words in a mixture of several fonts, replacing parts of words with syllables that sound similar, and replacing words with pictures of those words.Employing such ruses makes for tedious writing and choppy reading.
