double concentrations

USAGE SUMMARY

The phrase "double concentrations" is correct and usable in written English.
It can be used in contexts where you are referring to two instances or levels of concentration, such as in scientific or academic discussions. Example: "The experiment required double concentrations of the solution to achieve the desired reaction rate."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

Double concentrations of parental protoplast did not produce any colony at the selective conditions, while mixing the parental protoplasts resulted in 11 colonies.

Egyptian Journal of Biological Pest Control

We predicted mixture responses for the 3 binary mixtures from measurements of the single and double concentrations of their components using Formula 2. We found the measured responses to be significantly lower than the predictions in all cases.

Chemical Senses

Airway responsiveness (R L ) was measured following aerosol administration of double concentrations of metacholine for 30 s and measurements of respiratory parameters were taken every minute for 5 min.

BioMed Research International

To discount the possibility that increased siRNA concentration may have a negative impact on migration in the cyclin D1 and Id1 siRNA treated cells, we assessed single and double concentrations of siRNA in control cells and found no significant difference in cell migration (data not shown).

BMC Cancer

Briefly, the patient inhaled an aerosolized control solution of physiological saline followed by progressively increasing double concentrations (0.49-1000 μmof/L) of the capsaicin solution (Wako Pure Chemical Ind., Japan), delivered through a PARI BOY N085 air-compressed nebulizer (PARI GmbH, German) at an output rate of 0.5 ml/min with a mass median diameter of the particles in 3.7 μm.

Cough

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

In fact, it's a double concentration, he says: the hard slog of training motor skills that any athlete goes through, plus, for classical musicians, the intellectual rigour of understanding the history and aesthetics of styles spanning hundreds of years.

The Guardian - Music

It requires double concentration, double preparation, double everything - but at least you can hope the result will be doubly rewarding!" None the less, there does come a point in many conductor-instrumentalists' lives when they realise that they can no longer devote sufficient time to their specialist instrument.

The Guardian - Music

After 4d exposure to SWCNT, algal growth was inhibited at LOEC 0.25 mg/L in the presence of 0.023% (v/v) GA, while the double concentration of GA reduced this effect with No Observed Effect Concentration (NOEC) 0.5 mg/L.

Chemistry Central Journal

The pre-sowing treatment with a double concentration of the solution (240 mg/l) resulted in a decrease of oxidative processes (19 %), and the pre-sowing treatment combined with vegetative treatment also contributed to the reduction of TBARS (by 10%%).

Nanoscale Research Letters

Pre-sowing treatment in a double concentration (240 mg/l) resulted in a decrease in oxidative processes (19 %), and pre-sowing treatment combined with vegetative treatment also contributed to the reduction of TBARS (10%%).

Nanoscale Research Letters

Sara received her Bachelor of Arts from the UBC with a double concentration in the Humanities and Economics.

Huffington Post

Expert writing Tips

Best practice

When writing about scientific experiments, specify the units of concentration (e.g., molarity, mg/L) when discussing "double concentrations" to ensure clarity and reproducibility.

Common error

Ensure that the baseline concentration is clearly stated or understood before referring to "double concentrations". Without a clear reference point, the term can be ambiguous.

Linguistic Context

The phrase "double concentrations" functions as a noun phrase, typically serving as the object of a verb or preposition. It refers to the state or condition of having a concentration that is twice the normal or standard amount. Ludwig confirms its usability in written English.

Expression frequency: Uncommon

Frequent in

Science

80%

News & Media

15%

Wiki

5%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "double concentrations" is a grammatically sound noun phrase used to describe a quantity that is twice a standard or original concentration. As Ludwig AI indicates, it is correct and usable in written English. Common in scientific and technical domains, it's essential to specify units for clarity. While its frequency is uncommon, it serves a precise purpose when describing experimental conditions or ingredient ratios. Related phrases include ""twice the concentration"" and "twofold concentration", offering subtle variations in emphasis.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

twice the concentration

Emphasizes the multiplicative factor of two in relation to the concentration.

twofold concentration

Highlights the doubling aspect in a more formal or scientific tone.

concentrations doubled

Focuses on the action of increasing the concentration to twice its original value.

two times the concentration

A more explicit and less formal way of saying "twice the concentration".

increased concentration by 100%

Expresses the change in concentration as a percentage increase, equivalent to doubling.

concentration at 2x

Uses '2x' as shorthand to indicate a doubling of concentration, common in technical contexts.

double the strength

Uses 'strength' as a synonym for concentration, suitable in contexts where strength is a relevant attribute.

multiplied concentration by two

Describes the mathematical operation performed on the concentration.

concentration doubled in magnitude

Highlights the change in magnitude of the concentration.

duplex concentration

Less common, but suggests a concentration involving two elements or twice the quantity.

FAQs

How do I use "double concentrations" in a sentence?

You can use "double concentrations" to describe a solution or mixture where the amount of a substance is twice the normal or standard amount. For instance, "The experiment used "twice the concentration" of the catalyst to speed up the reaction."

What is another way to say "double concentrations"?

Alternatives to "double concentrations" include phrases like "twofold concentration", ""twice the concentration"", or "concentration doubled depending on the context".

Is it correct to say "concentrations doubled" instead of "double concentrations"?

Both "double concentrations" and "concentrations doubled" can be correct, but they function differently in a sentence. "Double concentrations" acts as a noun phrase, while "concentrations doubled" is a statement indicating a change. For example, "We used "double concentrations" of the reagent," versus "The concentrations doubled after the second addition".

In scientific writing, how should I specify "double concentrations"?

In scientific writing, always specify the units and the original concentration when using the term "double concentrations". For example, instead of saying "We used "double concentrations"", say "We used a concentration of 200 μM, which is "twice the concentration" of the standard 100 μM solution".