The phrase "a standard mixture of" is correct and usable in written English.
It can be used when describing a common or typical combination of ingredients, elements, or components in various contexts, such as cooking, chemistry, or manufacturing.
Example: "The recipe calls for a standard mixture of flour, sugar, and baking powder to create the perfect cake batter."
Alternatives: "a typical blend of" or "a common combination of".
Fig. 1 HPLC chromatogram of a standard mixture of polyphenolic compounds.
A standard mixture of n-alkanes (C12 C32) from Indiana University with known isotopic composition was used daily to monitor the performance of the instrument.
This study evaluates the efficacy of pattern modulation GC×GC by analyzing a standard mixture of 43 oxygenated organic compounds and an E85 fuel sample.
Sedation was achieved with a standard mixture of medetomedin (0.05 mg/Kg), midazolam (0.25 mg/Kg), and atropine (0.25 mg/Kg).
The system was calibrated with a standard mixture of thyroglobulin, myosin, ovalbumin, RNAse A and aprotinin (Sigma, Switzerland) and detection was carried out at 280 nm.
A standard mixture of known concentration of organochlorine pesticides was run and the response of the detector for each compound ascertained.
The assessment of their degradation was conducted by passing through 5 g of acidified silica (44%, w/ w) column 0.5 mL of a standard mixture (0.5 μg/mL) of the target analytes in toluene.
The calibration standard was a certified standard mixture of six phthalate esters (Ultra Scientific; J.T. Baker, Pillipsburgh, NJ, USA).
A primary standard mixture of stearic and palmitic acids (65 35) was used for the calibration curve in the range of 0 15 g% using single linear regression analysis (Beer's Law).
Quantification was by peak areas relative to the norvaline internal standard, with reference to an external standard mixture of amino acids (Agilent, part no. 5061-3331) plus norvaline, GABA and VGB (Sigma-Aldrich, Poole, Dorset, UK).
The amino acids were identified and quantified on the basis of an external standard mixture of amino acids Beckman no 33 1018, with additional Hydroxylysine and the degradation products α-aminoadipic acid (α-Ada), α-aminobuteric acid (α-Abu), β-alanine (β-Ala), γ-aminobuteric acid (γ-Abu), 6-aminohexanoic acid (6-Aha) and ornithine (Orn).
