lowest concentration

USAGE SUMMARY

The phrase "lowest concentration" is correct and usable in written English.
It can be used when discussing the minimum amount of a substance present in a solution or mixture. Example: "In the experiment, we observed the effects of the drug at the lowest concentration to determine its efficacy."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The lowest concentration of impurity B is extremely small, less than 0.0001.

Encyclopedia Britannica

Lowest concentration.

Annals of Intensive Care

After 40 min, the lowest concentration was almost below 5%.

Nanoscale Research Letters

Essentially, the lowest concentration measured voltammetrically was the LOD.

Electrochimica Acta

Even at the lowest concentration, fish were extremely sick, Scholz says.

Science Magazine

For a better estimation of LODs, the lowest concentration standard was injected 30 times.

Journal of Chromatography A

The lowest concentration quantified was 5 pg ml−1, demonstrating acceptable accuracy and precision.

Journal of Chromatography B

Its binding at the lowest concentration exceeded that of HGF at the highest concentration.

Biomaterials

The highest conversions were observed at the lowest flow rate and lowest concentration of nitrobenzene.

Electrochimica Acta

The lowest concentration was noted at the outflow from the lake (26.65 ng kg−1 d.w).

Ecohydrology & Hydrobiology

Hawaii has the lowest concentration of student indebtedness -- just 11.5percentt.

Huffington Post

Expert writing Tips

Best practice

When describing experimental results, specify the units of measure (e.g., mg/L, ppm) along with the "lowest concentration" to ensure clarity and reproducibility.

Common error

Avoid using "lowest concentration" interchangeably with "detection limit". The detection limit is the minimum level that can be reliably detected, while the "lowest concentration" refers to the actual minimum amount used or found in a sample, which may be higher than the detection limit.

Linguistic Context

The phrase "lowest concentration" functions primarily as a noun phrase, often acting as the subject or object of a sentence. As Ludwig AI confirms, the expression is correct and usable in a wide range of contexts. It's used to specify a minimal amount of a substance, whether in scientific experiments, medical treatments, or environmental studies.

Expression frequency: Very common

Frequent in

Science

75%

News & Media

15%

Encyclopedias

5%

Less common in

Formal & Business

3%

Reference

1%

Social Media

1%

Ludwig's WRAP-UP

In summary, the phrase "lowest concentration" is a grammatically sound and commonly used term, especially within scientific and technical domains. As Ludwig AI indicates, it serves the purpose of quantifying the minimum amount of a substance in a given context. Its frequency is high, with applications ranging from research papers to news reports. Alternatives include "minimum concentration" or "least concentration". While generally used correctly, it's important not to confuse it with related terms like "detection limit". Remember to specify the units of measure when using this phrase in scientific writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

minimum concentration

Replaces "lowest" with "minimum", indicating the smallest allowable or detectable amount.

least concentration

Substitutes "lowest" with "least", emphasizing the minimal quantity.

minimal concentration

Uses "minimal" instead of "lowest", denoting a very small or the smallest possible amount.

smallest concentration

Employs "smallest" to convey the idea of the least size or amount in concentration.

bottom concentration

Uses "bottom" to suggest the very base or lowest level of concentration.

minimum strength

Replaces "concentration" with "strength", focusing on the intensity of the substance.

weakest concentration

Uses "weakest" instead of "lowest", highlighting the lack of potency or intensity.

trace concentration

Indicates a very small, almost undetectable amount of concentration.

negligible concentration

Suggests that the concentration is so small it can be ignored.

threshold concentration

Refers to the concentration level at which an effect is first observed.

FAQs

How is "lowest concentration" typically measured in scientific studies?

The "lowest concentration" is often determined through serial dilutions and measured using instruments like spectrophotometers or mass spectrometers. The minimum inhibitory concentration (MIC) is a common metric in microbiology, representing the "minimum concentration" of a substance that inhibits microbial growth.

What is the difference between "lowest concentration" and limit of detection?

The "lowest concentration" refers to the smallest amount of a substance present in a sample, whereas the limit of detection (LOD) is the minimum level that can be reliably distinguished from background noise by an analytical method. Therefore, the "lowest concentration" can be significantly above the LOD.

How do you determine the "lowest concentration" for a drug to be effective?

Researchers often conduct dose-response studies to identify the "lowest concentration" at which a drug elicits a therapeutic effect. This involves testing various concentrations and observing the resulting biological responses to find the "minimum effective dose".

What are some alternatives to saying "lowest concentration" in a research paper?

Depending on the context, you can use alternatives like "minimum concentration", "least concentration", or "trace amount". For example, instead of stating, "The effect was observed at the "lowest concentration"", you could say, "The effect was observed at the "minimum detectable level"".