controlled concentrations of

USAGE SUMMARY

The phrase "controlled concentrations of" is correct and usable in written English.
You can use it in scientific or technical contexts where you are discussing specific amounts or levels of a substance that are regulated or managed. Example: "The experiment required controlled concentrations of the chemical to ensure accurate results."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

Multi-material scaffolds were fabricated by including controlled concentrations of fluorescently labeled dextran, fluorescently labeled bioactive PEG or bioactive PEG in different regions of the scaffold.

Acta Biomaterialia

Plasma copolymerization is shown to be a promising route to the fabrication of new surfaces with controlled concentrations of specific surface functionalities; in this case, amine and carboxylic acid.

Polymer

The array sensors have good response to controlled concentrations of volatile organic compounds (∼35fF, ∼7fF, ∼12fF for the PHEMA covered sensor when exposed to 100 ppm of water, methanol and ethanol vapors and ∼2.5fF, in the case of 100 ppm of toluene vapors for the PDMS covered sensor).

Sensors and Actuators B: Chemical

Our exploratory research shows that by using controlled concentrations of pure synthetic compounds in model habitats, individual VOCs can be studied one by one, thereby isolating their distinct growth-promoting, growth-inhibiting and other physiological effects.

AMB Express

In recent investigations, 45 S5 Bioglass® has been shown to increase secretion of vascular endothelial growth factor in vitro and to enhance vascularization in vivo, suggesting that scaffolds containing controlled concentrations of Bioglass® might stimulate neovascularization, which is beneficial to large tissue constructs (Day et al. [2004]).

Progress in Biomaterials

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

There is a growing trend toward aerial applications of deadly poisons, like parathion, a member of the family of organic-phosphate insecticides, for the purpose of "controlling" concentrations of birds distasteful to farmers.

The New Yorker

It is difficult to control concentrations of methanol/dissolved oxygen at high levels simultaneously in heterologous proteins productions by Pichia pastoris during induction phase.

Process Biochemistry

Electrical properties of Au-catalyzed GaAs nanowires can be adjusted by controlling concentrations of Be and Si dopants through source temperatures.

Nanoscale Research Letters

Despite much speculation, the principal factors controlling concentrations of polycyclic aromatic hydrocarbons (PAH) in settled house dust (SHD) have not yet been identified.

Environmental Science & Technology

Hormone and WMP concentrations in CSE and PI samples generally decreased with increasing discharge, reflecting that dilution of wastewater by storm runoff is the main process controlling concentrations of these compounds in CSE and PI samples.

Environmental Science & Technology

To determine the vertical distribution of mass within the plume through inversion we assumed an empirical parameterization30,36 that controls concentration of mass along the column.

Nature

Expert writing Tips

Best practice

When describing experimental procedures, clearly state how you achieved the "controlled concentrations of" a substance. Be specific about the methods used for regulation.

Common error

Avoid vague descriptions when discussing "controlled concentrations of". Instead of saying 'approximately controlled', provide the range of acceptable variation and the methods used to maintain it.

Linguistic Context

The phrase "controlled concentrations of" functions as a prepositional phrase, typically modifying a noun or verb by specifying the amount or level of a substance that is intentionally regulated. Ludwig AI confirms that the phrase is correct and usable.

Expression frequency: Common

Frequent in

Science

70%

Academia

15%

News & Media

5%

Less common in

Formal & Business

3%

Encyclopedias

2%

Wiki

1%

Ludwig's WRAP-UP

The phrase "controlled concentrations of" is a grammatically correct and frequently used prepositional phrase, particularly in scientific and technical contexts. As noted by Ludwig AI, its purpose is to denote specific, regulated amounts of a substance, ensuring accuracy and consistency in various processes. It is predominantly found in scientific publications, academic research, and technical reports, reflecting its formal and scientific register. When using the phrase, remember to emphasize how the regulation is achieved and avoid vague descriptions. Alternatives such as ""regulated levels of"" or ""precise levels of"" can be considered based on the specific nuances you wish to convey.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

regulated levels of

This alternative emphasizes the act of regulating to maintain specific levels.

managed amounts of

This alternative highlights the act of managing the quantity of something.

precise levels of

This alternative focuses on the accuracy and exactness of the levels.

specific concentrations of

This alternative maintains the term "concentrations" but emphasizes their specificity.

defined quantities of

This alternative uses "quantities" to represent the amount and emphasizes that they are clearly defined.

adjusted levels of

Focuses on the active adjustment to reach desired levels.

predetermined concentrations of

Highlights that the concentrations were established in advance.

calibrated amounts of

Emphasizes the process of calibration for achieving accurate amounts.

standardized levels of

Highlights the use of standards in maintaining specific levels.

carefully monitored levels of

Shifts the emphasis to the careful monitoring of the levels.

FAQs

How do you use "controlled concentrations of" in a sentence?

Use "controlled concentrations of" to describe the precise amount of a substance maintained in a specific environment. For example, 'The experiment required "regulated levels of" oxygen to ensure accurate results.'

What are some alternatives to "controlled concentrations of"?

You can use alternatives such as "regulated levels of", "managed amounts of", or "precise levels of" depending on the context.

In scientific writing, is "controlled concentrations of" preferable to "high concentrations of"?

"Controlled concentrations of" implies intentional regulation, while "high concentrations of" simply describes a state. Use "controlled concentrations of" when the amount is deliberately maintained; otherwise, use "high concentrations of".

What is the difference between "controlled concentrations of" and "consistent concentrations of"?

"Controlled concentrations of" emphasizes active management to maintain a specific level, whereas "consistent concentrations of" focuses on the uniformity or stability of the amount over time. "Controlled concentrations of" implies a deliberate action, whereas consistent refers to an observed property.